NNNNNNNNNNNNNNNNNNNNNNNNNN
NAEYC -- See National Association for the Education of Young Children

Nager syndrome --
see acrofacial dysostosis------------------------------------------------>.

naive psychology --
Vygotsky's second stage of development, formulated particularly as it applies
to the development of language.

narcissism -- inflated, grandiose, or unjustified favorable self-views; Freud: the investment of libido into oneself. The libidinal
equivalent of egotism.
Freud regarded it as a perversion until 1914, when in "On Narcissism" he wrote that normal development
means transferring more and more attention and interest into other people and thereby decreasing one's original or primary state of
narcissism. Primary
narcissism is the self-involvement all infants start out with; secondary narcissism is a turning of libido away from
objects back to the
ego, as with what we now call the narcissistic personality.

NARP (neuropathy, ataxia, retinitis pigmentosa) -- one of the mitochondrial disorders; retinitis pigmentosa, sensory
neuropathy, seizures, dementia, ataxia, proximal weakness. Caused by a mutation in the ATP synthase 6 gene; maternal
through mtDNA.

narrative --
method that tells a story, includes all the details of an incident

narrative therapy -- developed out of social constructionist and postmodern thinking, this approach to counseling
seeks to create a new story for the individual and the family that works better than the old approach.

nasal bone -- two small oblong bones that together form the bridge of the nose. See picture.

nasal cannula --
plastic prong placed in the nostrils to deliver oxygen; plural,
cannulae.

nasal hypoplasia --
underdeveloped nasal cavity with all of its many varieties.

nasal pillows -- a prop attached to an oxygen line to permit the flow of oxygen
directly into the nose.

nasal septum – the partition dividing the nasal cavities --------------->>.

nascent --
coming or having recently come into existence.

nasogastric (NG) feeding tube -- a plastic feeding tube placed in the nose and extended into the stomach.

nasopharynx -- posterior portion of the oral cavity above the palate -------------------------->>.

natal -- pertaining to birth -- before, during, and immediately after.

National Association for the Education of Young Children -- an organization that is
dedicated to improving the well-being of all young children, with particular focus on the quality of
educational and developmental services for all children from birth to age 8.
NAEYC was founded
in 1926.

National Association of Social Workers (NASW) -- professional organization of social workers.

National Council for the Social Studies' National Standards -- a set of national standards developed for children (K--12)
identifying learning experiences that make up a fundamental knowledge of social studies.

National Council of Teachers of Mathematics

National Joint Committee on Learning Disabilities (NJCLD) -- group of representatives from ten professional and parent
organizations concerned about and working on behalf of individuals with learning disabilities.

National School Lunch Program

National Science Education Standards -- a set of national standards on science education, presenting an outline of what students
(K--12) need to know, understand, and be able to do to be "scientifically literate" at each grade level.

native language -- the first language a child learns to speak fluently.

nativist -- theorists who believe that skills are innate and naturally occur as a child matures.

nativist model -- a theoretical model in which hereditary factors are considered to be the primary influence on development.

natural, or prepared, childbirth -- an approach designed to reduce pain and medical intervention and to make childbirth a rewarding
experience for parents.

natural consequence -- a consequence that would occur without a parent or teacher's intervention.

natural environment -- Placements -- such as child care, home, and preschool -- that use play and other developmentally
appropriate activities and learning opportunities; a philosophy that emphasizes providing early intervention in settings viewed as typical
for youngsters without disabilities.

natural line of development -- Vygotsky's term for developmental changes governed by genetic and biological factors.

naturalistic approach -- an instructional approach that emphasizes teaching within the context of a daily routine.

naturalistic observation -- A systematic process of gathering information by looking at individuals and their behavior in their natural
environment; a research method in which the researcher observes the behavior of interest in the field, or natural environment, of the
one(s) behaving.

naturalistic study -- method in which researchers observe the behavior of people in their natural environments.

naturalistic teaching -- language instruction that occurs in natural settings.

naturalistic intelligence -- one of Howard Gardner's nine distinct intelligences listed in his Multiple Intelligence theory. The
human ability to discriminate among living things (plants, animals) as well as sensitivity to other features of the natural world (clouds,
rock configurations). This ability was clearly of value in our evolutionary past as hungers, gatherers, and farmers. It continues to be
central in such roles as botanist or chef.

natural methods of assessment -- a method of assessment that used information from the child's environment.

natural routines -- activities that normally take place in the daily routine of infants and toddlers and their families.

natural selection -- the process, in nature, whereby individuals who are best adapted to their surroundings survive and reproduce,
and the adaptive characteristics of those individuals are passed on to the next generation; sometimes called
evolution; Darwin.

natural setting -- placements in normal settings, such as a regular classroom with typical children who do not have disabilities.

natural stage (or primitive stage) -- Vygotsky's first stage of development, formulated particularly as it applies to the development
of language.

natural supports -- the student's family and classmates. These individuals make up a support network of mutual caring that promotes
greater inclusion within the classroom and school, access to effective instruction, and the development of social relationships
(friendships).

nature vs. nurture -- controversy concerning how much of a person's ability is related to
sociocultural influences (nurture) as opposed to genetic factors (nature).

NCLB -- see No Child Left Behind

NDT --
see neurodevelopmental therapy.

near death experiences --
Jung had a near-death experience in 1944 when he had a
heart attack. His vivid encounter with the light, plus the intensely meaningful insights led
Jung to conclude that his experience came from something real and eternal. Jung
recalled the meditating Hindu from his near death experience and read it as a parable of
the archetypal Higher Self, the God-image within.

near poverty -- the economic state that results when the annual income of a family of
three is no greater than $22,722.

nebula -- an interstellar cloud of dust, hydrogen gas, helium gas, and other ionized gases.
(see amazing picture of the Orion nebula)

NEC --
see necrotizing enterocolitis.

neck righting reflex --
As the asymmetrical tonic neck response is "lost," it is
replaced with a
neck-righting reflex, in which passive or active rotation of the
head to one side is followed by rotation of the shoulders, trunk, and pelvis in the
same direction (see
tonic-neck reflex) (see illustration).

necrosis -- death of the tissue.

necrotizing enterocolitis (NEC) -- severe inflammation of the small intestine
and colon, more common among premature infants.

needs assessment -- an assessment that is conducted by the district to determine the transition practices that currently exist in the
district.

negative feedback -- information or communication that is intended to minimize change in a system.

negative reinforcement -- response to a behavior that decreases the likelihood that the behavior will recur; for instance, a teacher's
glare might stop a child from whispering at group time, and from then on, the anticipation of such an angry look could reinforce not
whispering in the future. Behavioral phenomenon in which an individual's behavior permits an unpleasant event to be avoided or
escaped, with a resultant increase in this behavior in the future.

negative sentences -- statements using "no," "not," "can't," and so on.

negative sentiment override -- a state in which the negative emotions shared by a couple far outnumber the positive emotions.

neglect -- the withholding of basic survival needs: food, water, shelter, clothing, medical care; constitutes maltreatment.

neglected children -- children who are reasonably well liked by their peers, but who lack friends. In a study of peers, these children
were seldom mentioned, either positively or negatively.

neglect response -- a destructive reaction that tends to occur when a person is not much invested in the relationship, doesn't want to
deal with any problems in it, and is willing to let the partnership simply wither away.

negligent -- failing to practice or perform one's duties according to certain standards; careless.

negotiated farewell -- a relationship-ending strategy in which both partners recognize the problems with the relationship and mutually
agree to end it.

neolocal residence -- situation in which newly married partners set up their own household, not connected with parents of the bride
or the groom.

neolocal society -- a society that encourages newly married couples to establish their own separate, autonomous residence,
independent of either partner's parental kinship group.

neonatal adrenoleukodystrophy -- see adrenoleukodystrophy, neonatal form.

Neonatal Behavioral Assessment Scale (NBAS) -- a test developed to assess the behavior of the infant during the newborn period;
developed by
T. Berry Brazelton.

neonatal conjunctivitis -- eye condition caused by exposure of the newborn’s eyes to chemical,
chlamydial, bacterial, or viral agents. Chemical conjunctivitis usually occurs as a result of silver
nitrate that is put in newborns’ eyes to prevent a
gonococcal infection --------------------------------->>.

neonatal herpes simplex -- a cause of deaf-blindness.

neonatal intensive care unit (NICU) -- hospital unit specializing in providing newborn life support
treatments.

neonatal lupus erythematosus -- a rare form of temporary lupus that affects a fetus or newborn (usually coming to the fore in the
first few months of life). It occurs when the mother's
autoantibodies are passed to her child in utero. These antibodies can affect the
skin, heart, and/or blood of the baby. It sometimes appears as a rash developing soon after birth and can last several months before
disappearing. This is not a permanent condition, but half of all babies born with
neonatal lupus may present with a heart condition --
one that is permanent, but treatable with a pacemaker. Only about 1% of infants who receive positive maternal autoantibodies will
develop
neonatal lupus, and females more often than males.

neonatal mortality -- the number of deaths in the first month of life per 1000 live births.

neonatal necrotizing enterocolitis -- an acute inflammatory bowel disorder characterized by tissue death that may lead to the
perforation of the bowel and
peritonitis or infection of the peritoneum.

neonatal seizure -- a seizure that manifests as arm and/or leg tonic/clonic movements seeming like bicycling or rowing movements
of the legs and/or arms. Movements may also be more subtle (e.g.,
orolingual movements such as spasmodic lip smacking or tongue
thrusting,
ocular movements such as excessive blinking or prolonged eye opening/staring, apnea, bradycardia).

neonate -- an infant who is in the first one to two months of life ------------------------------>>.

neophobic -- fear of things that are new and unfamiliar.

nephritis -- an inflammation of the kidney, caused by toxins, infections, and autoimmune disease.

nephroblastoma --  a tumor that originates in the kidneys – also called Wilms Tumor.

nephron -- functional unit of the kidney that actually produces urine in the process of removing  
waste and excess substances from the blood. There are about 1,000,000
nephrons in each  
human kidney.

neoplasm -- an abnormal mass of tissue (tumor) that results when cells divide more than they should or do not die when they should.
Neoplasms may be benign or malignant. See
tumor.

nerve blocks -- direct injection of denaturing agents into motor nerves.

nerve conduction velocity -- measure of nerve function.

nervous system -- a complex system divided into the central nervous system (CNS) and the peripheral nervous system (PNS).
The spinal cord and the brain make up the CNS. Its main job is to get the information from the body and send out instructions. The PNS
is made up of all the nerves and wiring. This system sends the messages from the brain to the rest of the body.

networking -- making connections with others who can further career and professional opportunities.

neural -- Involving the nerves and the nervous
system
. (see that picture right there)

neural crest --
The part of the ectoderm in a
vertebrate
embryo that lies on either side of the
neural tube and develops into the cranial, spinal,
and autonomic
ganglia (same picture).

neural fold --
during embryonic life, the fold created
when the
neural plate expands and rises; later it
becomes the spinal column
(see the same picture).

neuralgia --
pain that follows the path of a nerve.
Symptoms are impaired function of body part due to
pain, muscle weakness, or nerve damage; increased
sensitivity of the skin or numbness; pain located
anywhere, usually near or on the surface of the body.

neural groove -- A longitudinal groove between the
neural folds of the vertebrate embryo before the neural tube is completed (same picture).

neural network --
a network involving many brain regions working in concert to store and use information obtained from the
environment.

neural plate -- earliest fetal brain mass development derived from the ectodermal germ layer of the embryo in the first 7 weeks of
gestation (same picture).

neural tube --
precursor of the spinal column; the stage of central nervous system (CNS) development that follows neural plate
formation, which subsequently gives rise to the various parts of the brain (i.e., the
forebrain folding into the cerebrum and the
hindbrain into the cerebellum, brainstem, and spinal cord) (same picture).

neural tube defects --
disorders in the development, closure,
and formation of the
neural groove, the vertebral column
(which houses the spinal cord), or other soft tissue structures
surrounding the nerves. A group of malformations of the spinal
cord, brain, and vertebrae. Three major
neural tube defects
are encephalocele (a malformation of the skull which allows a
portion of the brain to protrude),
anencephaly (no neural
development occurs above the
brain stem), and spina bifida
(see illustration of types of spina bifida).

neurobiological disorder --
a condition of the nervous system
that may be caused by genetic or biological factors.

neuroblastoma -- cancerous growths in the nerves which can
appear anywhere in the body. These tumors generally form in
infancy and early childhood. Many start in the
adrenal glands, but 2/3 of them start in the abdomen.

neurodegenerative -- the progressive loss of structure or function of the neurons. Neurodegenerative diseases include
Parkinson's disease, Alzheimer's disease, and Huntington's disease.

neurodevelopmental -- development of the neurological systems.

neurodevelopmental approaches -- explanations of development that focus on the relationship of brain development to behavior
and thinking.

neurodevelopmental disorders -- caused by irregularities in brain development as a result of genetic and environmental factors.
Includes
Fragile X, Fetal Alcohol Syndrome, and Autism spectrum disorders. Children can experience these disorders with other
disorders.

neurodevelopmental therapy (NDT) -- specific training a physical therapist may receive, specifically focused on providing physical
therapy for children. Therapy that includes an understanding and utilization of typical developmental stages in working with children;
commonly used theory underlying physical and
occupational therapy.

neurodevelopmental training (NDT) -- a program used by occupational and physical therapists that concentrates on
manipulating and handling the child at either head, shoulders, trunk, or hips.

neuroectoderm -- fetal skin cells that differentiate to form the retina and central nervous system.

neurofibromatosis (type 1) (Von Recklinghausen disease) -- multiple cafe-au-lait spots, axillary (armpit) and inguinal (groin)
freckling, nerve tumors (
fibromas) in body and on skin, Lisch nodules (brown bumps on the iris of the eye), glaucoma, scoliosis,
hypertension, ADHD, macrocephaly or hydrocephalus, visual impairments (secondary to optic glaucomas), increased risk of
numerous
malignant and benign tumors in the nervous system (malignant peripheral nerve sheath tumors in 8% ti 13% of patients),
verbal and non-verbal
learning disabilities occur in 30% to 65% of patients. Caused by a mutation in the NF1 gene, which codes for
neurofibromin protein, on chromosome 17q11.2;
autosomal dominant; although may be new mutation. Can cause deaf-blindness.

neurofibromatosis, type II -- bilateral vestibular schwannomas (benign tumors of auditory nerve), cranial and spinal tumors,
neuropathy, cafe-au-lait spots (usually fewer than 6); in contrast to type I, no Lisch nodules or axillary freckling are seen.
Associated complications:
deafness (average age of onset is 20 years); cataracts or other ocular abnormalities, meningiomas
(tumor of the
meninges), tumor growth rates are variable within the same patient and between patients. Caused by a mutation in the
tumor-suppressor (NF2) gene encoding merlin protein on chromosome 22q12.2; genotype/phenotype studies show that nonsense
mutations (mutations that create a stop codon) are associated with more severe disease presentation than other type of genetic
mutations;
autosomal dominant, although may be new mutation; may cause deaf-blindness. Hearing loss is present in 45% of
individuals with this syndrome. The loss is unilateral in 75% and is progressive. Any adult presenting with
noncongenital unilateral
hearing loss
has neurofibromatosis II until proven otherwise.

neurogenic -- starting with or having to do with the nerves or the nervous system

neurogenic voice disorders -- due to nerve or brain damage, includes paralysis of the vocal cords.

neuroimaging -- non-invasive method of viewing parts of the brain; helpful in determining the presence of certain disabilities.

neuroleptic malignant syndrome -- a rare toxic reaction to a medication in which there is a potentially life-threatening high fever.

neurological -- Referring to the nerves and the nervous system in general.

neurological factors -- possible cause of learning disabilities; anoxia, abnormal fetal positioning during delivery, prenatal
infections, prenatal injury, etc.

neurological impairment -- any physical disability caused by damage to the central nervous system (i.e., the brain, spinal cord,
ganglia, or nerves).

neurological soft signs -- common characteristic of learning disabilities; may include poor fine motor coordination, balance, and
tactile discrimination. Also
strabismus and poor visual-motor coordination.

neurological system -- organ system including the brain, spinal cord, and nerves.

neurologist -- physician specifically trained in sensory or motor responses due to
nervous system impairments (that guy over there looking in the centaur's head
is, himself, a neurologist. The others are just assistants).

neuroma --
a growth or tumor of nerve tissue.

neuromotor impairments -- includes disorders that involve the central nervous
system and affect both the nerves and the muscles. Includes cerebral palsy, spinal
cord disorders and injuries,
seizure disorders, and traumatic brain injury. These can
impair a child's movement and posture, inhibiting or preventing the child from
maneuvering through the environment.

neuromuscular -- relating to the coordination of the central nervous system and the muscular-skeletal system.

neuromuscular impairment -- a neurological problem that affects the muscles, such as muscular dystrophy.

neuronal ceroid lipofuscinosis, juvenile -- see Batten disease.

neuronal migration disorder -- a diverse group of congenital brain abnormalities that arise specifically from defective formation of
the
central nervous system. During early brain development, neurons are made and move to make different parts of the brain, per
genetic instructions and proper environmental factors. If this does not go as planned, gross malformations may occur. Most people with
neuronal migration disorders will have seizures and mental retardation. Some neuronal migration disorders are
lissencephaly,  Zellweger syndrome, Kallman syndrome, periventricular heterotopia, schizencephaly, and polymicrogyria.

neurons -- nerve cells in the brain that store and transmit information.

neuropathy -- disorders of the nervous system.

neuroscientists -- Those who study the brain and the nervous system.

neuroses -- any of a group of non-psychotic disorders characterized by unusual levels of anxiety and associated problems; psychiatric
disorders associated with unresolved conflicts and characterized by anxiety, but without the disorganization of personality and distortion
of reality that occur in
psychoses. Examples of neuroses include panic disorder, conversion hysteria, obsessive compulsive
disorder
, and phobias; Maslow: the lack of basic physiological needs may lead to a very specific hunger for the things that are
missing. If you have specific problems in your development (extreme insecurity or hunger, loss of a family member, etc.) you may
"fixate" on that set of needs for the rest of your life.
Freud: a conflict between ego and id that produces symptoms of psychological
discomfort. This physiologic-sounding term has been changed to "
anxiety disorder." That's regrettable, since many neuroses don't
involve conscious anxiety.
Neurosis results when we live in cultures that require for their cohesion a renunciation of our drives, a
repression that makes us a bit irrational.
Rogers: the result of a real self - ideal self incongruity.

neurotic disorders -- behavior characterized by combinations of anxieties, compulsions, obsessions, and phobias.

neurotoxin -- a chemical that damages the central nervous system or neurons; also called neurotoxicant.

neurotransmitter --
a chemical released at the synapse that permits transmission of an impulse from one nerve to another.

neurotropin -- any nutrient that enhances brain function. May include food, hormones, or medications.

neurulation -- sequential central nervous system (CNS) developmental processes of neuron cell proliferation and migration of
nascent neurons outward from the center of the developing brain to the outer cortex.

neutralized symmetry -- a style of communication in which partners respect each other, approach each other as equals, and avoid
exerting control over the other.

neutral stimulus -- something that initially does not elicit a particular response.

neutron -- an electrically neutral subatomic particle in every atomic nucleus except for ordinary hydrogen. It has a mass nearly 1,840
times the mass of the
electron.

neutropenia -- low white blood cell count.

neutrophils -- the most common type of white blood cell, comprising about 50% to 70% of all white blood cells. They can ingest
other cells,. They are the first immune cells to arrive at a site of infection, through a process called
chemotaxis. They have a half-life
of only 4 to 10 hours when not activated. They immediately die when ingesting a pathogen. They are the main component of pus, and
responsible for its whitish color.  

newborn reflexes -- muscle reactions to stimuli; present in children who are just born. The reactions are not controlled by intent.

newborns -- babies less than 2 weeks old.

new life stage of grief -- the period during which the bereaved establishes a new lifestyle and exhibits to society and his or herself
that he or she can live satisfactorily as a single person. The last of
Brubaker's three stages of the grieving process.

NF-2 Bilateral, acoustic -- a cause of deaf-blindness.

NG tube -- see nasogastric tube.

niacin --
also known as vitamin B3

niche-picking -- a type of genetic-environmental correlation in which individuals actively
choose environments that complement their heredity.

NICU -- see neonatal intensive care unit -------------------------------------------------->>.

Niemann-Pick disease, types A and B --
lysosomal storage disorder; type A presents in
infancy with
failure to thrive, enlarged liver and spleen, rapidly progressive neurological decline. Death occurs by age 2 -- 3 years.
Associated complications:
mental retardation, ataxia, myoclonus, eye abnormalities, coronary artery disease, lung disease; type
B is variable but not compatible with survival to adulthood and may cause few or no
neurological abnormalities. Main clinical features
of type B are enlargement of the spleen and liver resulting in liver dysfunction as well as cardiac disease, lipid abnormalities, pulmonary
involvement, and growth retardation. Cause: sphingomyelinase enzyme deficiency caused by mutations in the sphingomyelinase
(SMPD) gene on chromosome 11p15.4;
autosomal recessive.

night blindness (nyctalopia) -- the inability to see well or at night in dim light. It is not a disorder itself, but rather a symptom of an
underlying disorder or problem, especially untreated
myopia. It can  also be caused by glaucoma medications, cataracts, retinitis
pigmentosa, or vitamin A deficiency.

night terrors -- sleep disturbance characterized by repeated episodes of abrupt awakening, accompanied by intense anxiety,
disorientation, unresponsiveness, and an inability to remember details about the event.

Nirvana -- in Buddhism, a state of perfection in which the soul resides after liberation from the cycle of
rebirths through enlightenment. In
Hinduism, this state is called moksha. (See all those pictures over
there ---------------------------------------------------------------------------------------------->>)

Nirvana Principle --
Freud: Barbara Low's term for the psychological equivalent of homeostasis, the  
push for the least amount of tension. Different from the pleasure principle in that 1) pleasure sometimes
increases with tension, and 2) the
Nirvana Principle is primarily under the sway of the death drive,
whereas  the pleasure principle is powered by the
eros.

NMDA (N-methyl-D-aspartate) receptor -- a receptor for the amino acid called glutamate, which is
found  in every cell in the body and which plays a central role in brain function.

noble savage -- Rousseau's view of the child as naturally endowed with a sense of right and wrong and
an innate plan for orderly, healthy growth.

no cessation -- refers to the discipline of students under IDEA and means that the school may not expel
or suspend a student with a disability for more than 10 school days in any one school year, regardless of
what the student did to violate a school code. This has been changed by
IDEA 2004, in which a child can
be moved to an
Interim Alternative Educational Setting (IAES) for up to 45 days (if the violation
involves drugs, weapons, or bodily harm) regardless of whether or not the behavior was a manifestation of
the disability.

No Child Left Behind Act of 2001 (PL 107-110) -- Federal school reform legislation reauthorizing the
Elementary and Secondary Education Act and including increased school accountability for student
learning, more choices for parents and students, greater flexibility for schools in the use of funds, and an
emphasis on early reading intervention. The stated purpose of this law is "that all children will have a fair,
equal, and significant opportunity to receive a high-quality education and reach, at a minimum, proficiency
on challenging State academic achievement standards and state academic standards."

nocturnal asthma -- suddenly worsens in the middle of the night, typically between 2 and 4 am. With
nocturnal asthma, people often fall asleep quickly due to physical exhaustion only to wake 3 or 4 hours later
with breathing difficulties. They cough and wheeze, take medications, try to go back to sleep, which leads to
exhaustion during the day. This is very serious, and there is a high frequency of respiratory arrest and
death with this kind of asthma.

nocturnal enuresis -- repeated bed-wetting during the night. Most of the time, the problem has biological
roots, and can be treated medically with anti-depressant drugs, which reduce the amount of urine produced.

nocturnal seizures -- seizures that occur during sleep, but not only at night.

no-fault divorce -- divorce laws that do not place blame for the divorce on either spouse. One party's
assertion that irreconcilable differences exist is reason.

nominative aphasia -- see anomic aphasia or amnesic aphasia; word finding problems.

nomothetic approach -- a theoretical approach that focuses on developing a theory that works for a great
number of cases. Researchers using this approach believe it is possible to develop a general family theory.

nonambulatory - Describes the inability to move oneself about, usually the inability to walk.

noncommunicative language -- speech that does not convey meaning to a listener.

noncongenital unilateral hearing loss -- usually postlingual hearing loss in just one ear.

noncontingent helping -- providing assistance without effort or request from the recipient.

noncortical -- not having to do with the cortex, which is the outer portion of an organ. This is only my guess about "noncortical."

non-directive therapy -- Rogers: see client-centered therapy.

nondiscriminatory -- Appropriate to the child's language and cultural background.

nondiscriminatory and multidisciplinary assessment -- Core principle of IDEA establishing that no instruments and procedures
used to assess students for special education services shall be biased. Testing must be done in the student's native or primary
language; the use of evaluation procedures should be administered in a culturally and racially sensitive way; validation of assessment
tools necessary; done by a team of school professionals; utilizing several assessment tools to formulate a decision.

nondiscriminatory evaluation -- an IDEA principle that requires schools to determine what each student's disability is and how it
relates to the student's education. The evaluation must be carried out in a culturally sensitive way.

nondisjunction -- failure of a pair of chromosomes to separate during mitosis or meiosis, resulting in an unequal number of
chromosomes in the daughter cells.

nonessential amino acids -- amino acids that are produced in the body, and whose uses and functions in our body are equally as
the limiting amino acids. The limiting amino acids can be found in food. The 12 (??14??)
nonessential amino acids are alanine
(removes toxic substances from breakdown of protein during intensive exercise),
cysteine (abundant in nails, skin, and hair; acts as an
antioxident and has a synergetic effect when taken with other antioxidents such as vitamin E and selenium), cystine (removal of
toxins and formation of skin),
glutamine (promotes healthy brain function), glutathione (antioxident and anti-aging effects, removes
toxins),
glycine (component of skin and beneficial for wound healing; acts as a neurotransmitter), histidine (synthesis of red and
white blood cells; sexual arousal, blood flow), serine (constituent of brain proteins and aids in the synthesis of immune system
proteins; muscle growth),
taurine (necessary for proper brain function and synthesis of amino acids), threonine (balances protein
levels, promotes immune system, beneficial for the synthesis of
tooth enamel and collagen), asparagine (promotes equilibrium in
the
central nervous system, aids in balancing emotion), apartic acid (enhances stamina, removal of toxins and ammonia from the
body, aids in
synthesis of proteins in immune system), proline (plays a role in intracellular signalling), and L-arginine (blood
vessel relaxation, stimulating and maintaining erection, production of ejaculate, removal of excess ammonia)

nonfamily household -- household that consists of a person who lives alone OR people who live with unrelated individuals within a
housing unit.

non-fluent aphasia -- see motor aphasia or Broca's aphasia; difficulty speaking; words are stuttered and halting. Articulation
coordination is difficult.

non-Hodgkin lymphoma -- any of a large group of cancers of the lymphocytes (white blood cells). It can occur at any age and is
marked by
lymph nodes that are larger than normal, fever, and weight loss. Other symptoms are abdominal pain or swelling, chest
pain, coughing, trouble breathing, fatigue, and night sweats.

nonimmune -- not related to the antigen-antibody response.

noninvasive -- a procedure that does not involve penetrating the body (such as ultrasonography).

nonlocomotor skills -- are movements performed in place, usually while standing, kneeling, sitting, or lying. They involve the axis of
the body rotating around a fixed point. Some textbooks describe these as
nonmanipulative skills.

non-love --
a type of love relationship characterized by the absence of commitment, intimacy, and passion; situation in which all
elements are missing from a relationship between two people.

nonmarital cohabitation -- couples who live together without being married.

nonobligatory movement -- muscular movement once involuntary that has become voluntary.

nonoptical devices -- devices or strategies that do not involve optics used to improve visual performance of tasks for individuals with
low vision; examples include book stands, writing guides, lighting, and large type materials.

nonorganic failure to thrive -- a growth disorder usually present by 18 months of age that is caused by lack of affection and
stimulation;
abuse.

nonparticipant observation -- observational research in which researchers observe their subjects without interfacing with them.

nonpathogenic -- incapable of causing disease.

nonpunitive -- methods that do not involve or aim at punishment; for instance, letting a child be hungry later when he refuses to eat at
snack time is a non-punitive method of enforcing the need to snack with the group; hunger is a natural and logical consequence of the
child's behavior rather than a punishment meted out by the teacher (such as scolding or threatening).

non-rapid-eye-movement (NREM) sleep -- a "regular" sleep state in which the body is quiet and heart rate, breathing, and brain-
wave activity are slow and regular.

nonrepresentative sample -- not scientifically valid; a sample in which researchers pick people for convenience or availability.

nonrepresentational -- young child's drawing a symbol of mental image; not able to "represent" a recognizable symbol; difficult to
draw what they are thinking.

nonsense mutation -- gene defect in which a single base pair substitution results in the premature termination of a message and the
resultant production of an incomplete and inactive protein.

non-sequitur -- Latin for "it does not follow"; also called false cause or irrelevant reason; the conclusion does not follow logically
from the supposed reasons stated earlier.

nonsocial activity -- unoccupied, onlooker behavior and solitary play.

nonsocial play -- According to Mildred Parten, social development in children proceeds in a three step sequence. This is the first,
and involves unoccupied, onlooker behavior and solitary play. The other three (really four) are:
parallel play, associative play, and
cooperative play.

nonverbal communication -- the communication of emotions by means other than words, such as touch, body movement, facial
expression, and eye contact.

nonverbal learning disability -- subgroup of students with learning disabilities who cannot interpret nonverbal communication,
such as facial expressions, posture, and eye contact. A
neurological disorder which originates in the right hemisphere of the brain,
causing problems with visual-spatial, intuitive, organizational, evaluative, and holistic processing functions.

nonverbal working memory -- an executive function that involves the ability to retrieve auditory, visual, and other sensory images of
the past.

noodlehead tales -- humorous stories about impractical, foolish people.

Noonan syndrome -- short stature, characteristic facial features (triangular shaped face, deep philtrum, down slanting palpebral
fissures, ptosis), low-set ears, low posterior hair line, short or webbed neck, congenital heart defects (usually pulmonary valve
stenosis), shield-shaped chest, mean IQ score of 85 -- 90, sensorineural deafness, malocclusion, learning disabilities with
deficits in verbal learning,
ADHD, poor motor coordination, bleeding abnormalities. Cause: mutations in the PTPN11 gene cause
approximately half of cases; additional patients have been found to have mutations in the KRAS gene; majority are
new mutations
with autosomal dominant inheritance when passed from an affected individual.

noradrenaline -- a common neurotransmitter, primarily involved in our arousal states: fight or flight, metabolic rate, blood pressure,
emotions, and mood.

norepinephrine -- a neurotransmitter.

norm -- standard against which others are measured; statistically determined age levels for
developmental milestones.
(see picture of Norm ----------------------------------->>>)

normal --
average; a characteristic or quality that is common to most individuals in a defined group.

normal appearing family -- one of two broad family system types in which incest occurs. These
families look healthy and functional to outsiders but have serious problems, including incest. The
family structure is often traditional, but family members lack nurturing abilities.

normal development -- a sequence of changes across time that is very similar for all children.

normal deviation -- Minor irregularities that often occur in young children; the irregularities are usually self-correcting in typically
developing children.

normalization -- Allowing each person's life to be as normal as possible in all aspects, including residence, schooling, work,
recreational activities, and overall independence; a principle that children with disabilities, even severe disabilities, should live at home
with their families to provide the child with a normalized life experience. Historically, many young children with disabilities were placed in
institutions soon after birth and isolated from society.

normalized intervention model -- instruction that is stressed across a number of settings, using age-appropriate materials and
strategies, avoiding contrived reinforcement and aversive control, and supporting parents.

normal, or typical development -- An ongoing process of growing, changing, and acquiring a range of complex skills.

normative approach -- an approach in which measures of behavior are taken on large numbers of individuals, and age-related
averages are computed to represent typical development.

norm-based averages -- comparisons of a person's performance with the average performance of scores of age-mates.

norm group -- a comparison group that usually represents an average standard of achievement or development for a specific age
group or grade level.

norm-referenced assessments -- A standardized test in which the performance of an individual is interpreted relative to the
performance of a group of others at the same age or grade level.

norm-referencing -- a means of determining an individual's performance in relation to the performances of others on the same
measure. The meaning of the score emerges from comparison with the group of children, who constitute the norm.

norms -- an expression (e.g., weeks, months, years) of when a child is likely to demonstrate certain developmental skills; belonging to
Norm.

Norrie Disease -- an inherited eye disorder that leads to blindness in male infants at birth or soon after. It causes abnormal
development of the
retina, with masses of immature retinal cells accumulating at the back of the eye. Pupils appear white when light is
shone on them, a sign called
leukocoria. The irises or the entire eyeball may shrink and deteriorate during the first months of life and
cataracts may develop. About 1/3 of people with Norrie disease develop progressive hearing loss, and more than 1/2 developmental
delays in motor skills. Other characteristics may be mild to moderate
mental retardation, psychosis, abnormalities in circulation,
breathing, digestion, excretion, or reproduction. It is a rare disorder. It is caused by mutations in the NDP (Norrie Disease
Pseudoglioma) gene on the X chromosome,
 X-linked recessive; a cause of deaf-blindness.

notarized -- official acknowledgement of the authenticity of a signature or document by a notary public.

NTDs -- see neural tube defects.

nuclear family --
a kinship group in which a husband, a wife, and their children live together in one household; also called a conjugal
family system; also once thought of as the modern family; term was coined by Robert Murdoch in 1949.

nuclear-family model monopoly -- model in which the first-marriage family is seen as the legitimate model for how families should be,
and all other forms are seen as deficient alternatives.

nucleated cells -- cells that have a nucleus or nuclei.

nucleotides -- the four base compounds of DNA -- adenine, guanine, cytosine, and thymine; also called nucleotide bases.

nucleus --
the core, or central part around which other parts are grouped or gathered; (biology): the large membrane-bounded
organelle that contains genetic material in the form of multiple linear DNA molecules organized into structures called
chromosomes; (physics): the positively charged center of an atom that usually contains the protons and neutrons; (chemistry): a
fundamental arrangement of
atoms that occur in compounds through substitution of atoms without a change in structure; (astronomy):
the center of the head of a
comet or the central or brightest part of a nebula or galaxy; (meteorology): a particle on which water
vapor molecules accumulate in free air to form water drops or ice crystals; (
botany): the central kernel of a nut or seed or the center of
a starch granule; (
anatomy): a group of specialized nerve cells in the brain or spinal cord.

nuclide -- a species of atom as characterized by the number of protons, neutrons, and the energy state of the nucleus. A nuclide
is characterized by its
mass number and its atomic number. Nuclides are associated with radioactive decay and may be stable or
unstable. There are about 1700 known
nuclides, of which 300 are stable and the rest radioactive. Here is a nuclide table.

numbness -- a stage or emotion of grief.

nurse -- A person trained to care for the sick or disabled under the supervision of a physician.

nurture assumption -- the belief that parents are the most important part of a child's environment.

nurturing -- encouraging, supporting, caring, nourishing.

nurturist model -- a model of development in which environmental factors are considered to be the primary influence on
developmental changes.

nutrient -- the components or substances that are found in food.

nutrient intake -- consumption of foods containing chemical substances (nutrients) essential to the human body.

nutrient strengths -- nutrients that occur in relatively large amounts in a food or food group.

nutrient weaknesses -- nutrients that are absent or occur in very small amounts in a food or food group.

nutrition -- adequate intake of nourishment.

nutrition claims -- statements of reduced calories, fat, or salt on the food labels.

nutrition education -- activities that impart information about food and its use in the body.

nutritionist -- A person trained and specializing in the study of proper dietary habits.

nystagmus -- uncontrolled and involuntary rapid eye movements. An unsteady jiggling of the eyes. When the sensory input to the
brain from the eye is impaired (for a variety of reasons), the eye becomes unsteady.
A  B  C  D
E   F  G H
I
   JKL  M
PQ
  R  
Sa--So   
Sp--Sz   T
U
--Z
OOOOOOOOOOOOOOOOOOOOOOOOOOO
obese -- weighing more than 20 percent over one's ideal weight
(based on height, sex, and body composition);
see picture.

obesity --
The condition of being considerably overweight. A
greater than 20% increase over average body weight, based on
an individual's age, sex, and physical build;
see picture.

object --
Freud: a mental representation of a person. Also
called an
imago.

objective -- detached, impersonal, unprejudiced, data-only
recordings.

objectivity -- the state or quality of being able to see what is
real and realistic as distinguished from subjective and personal
opinion or bias.

object permanence -- the cognitive understanding that objects and persons continue to exist even when out of sight.

observing -- watching children to know more about their development.

observation -- to inspect and take note of the appearance and behavior of other individuals.

observational learning -- learning by watching and imitating another's actions; also called modeling.

observational measurement- - the process of observing and assessing behavior in ways that yield descriptions and quantitative
measures of individuals, groups, and settings.

observational research -- research method whereby researchers collect data by observing people in their natural surroundings.

obsessions -- persistent thoughts, impulses, or images of a repetitive nature that create anxiety.

obsessive compulsive disorder -- a psychiatric disorder in which recurrent and persistent thoughts and ideas that cannot be
suppressed are associated with repetitive behaviors, such as hand-washing. Characterized by recurrent thoughts, feelings, ideas, or
sensations (
obsessions) or behaviors that make a person feel driven to perform (compulsions). A person may have both obsessions
and compulsions. An example of
obsessive-compulsive disorder is excessive, repeated hand washing to ward off infection. Also
called
compulsion neurosis.

obsessive reactions -- prolonged concern, thought, emotion, or impulse even when it is unreasonable.

occipital -- the back section of the head ----------------------------------------------------------------------------->>.

occipital lobe -- located in the rear of the cerebrum. One of the four major areas of the upper brain, this
lobe processes our vision. The other three areas are
parietal, frontal, and temporal lobes ------------->.

occluder -- The object the examiner uses to prevent the child from seeing (usually one eye at a time).

occlusion -- To obstruct; as used here, to prevent vision; ALSO the closing and fitting together of dental
structures.

occupational therapist (OT) -- A professional who programs or delivers instructional activities and materials that help children and
adults with motor-related disabilities participate in activities.
OTs generally focus on activities that provide ease in movements to
complete tasks and living skills; professionals who specialize in developing self-care, work, and play activities to increase independent
function and quality of life, enhance development, and prevent disability.

occupations -- A Froebelian concept describing arts and crafts type activities used to develop eye-hand coordination and fine motor
skills.

ochronosis -- a bluish black discoloration of certain tissues such as ear cartilage or eye tissue. It is sometimes seen in alkaptonuria,
a
metabolic disorder. It can occur also as a result of exposure to various substances such as phenol or mercury.

ocular -- pertaining to the eye.

oculoauriculovertebral spectrum (facio-auriculo-vertebral spectrum; Goldenhar syndrome; hemifacial microsomia) --
unilateral external ear deformity ranging from absence of an ear to
microtia (tiny ear), preauricular (earlobe) tags or pits, middle-ear
abnormality with
variable hearing loss, facial asymmetry with small size unilaterally, macrostomia (large mouth), occasional cleft
palate, microphthalmia or eyelid coloboma, vertebral anomalies, occasional heart and renal defects, mental retardation in 10%.
Unknown cause; may be
sporadic inheritance resulting from maternal diabetes; additionally cases with clear autosomal dominant or
autosomal recessive inheritance has been reported.

oculocerebrorenal syndrome -- see Lowe syndrome.

oculodentodigital dysplasia (ODDD) -- an extremely rare genetic condition that typically results in small eyes (microphthalmia),
underdeveloped teeth, and
syndactyly and malformation of the fourth and fifth fingers. Visible features are small teeth more prone to
cavities, a long thin nose, and characteristic hair (fine, thin, dry, or fragile, and in some cases, curly). Adults may show
neurological
abnormalities, such as
conductive deafness, paresis, ataxia, spastic paraplegia, difficulty controlling the eyes, gradual vision
loss, and bladder and bowel disturbances. Less common features are sparse hair growth (
hypotrichosis), brittle nails,
camptodactyly, syndactyly of the toes, microcephaly, cleft palate, impaired speech, and palmoplantar keratoderma (the skin on
the palms and soles of the feet becomes thick, scaly, and calloused). It is commonly an
autosomal dominant condition, but can be
autosomal recessive. It is believed to be caused by a mutation in the gene GJA1, located on the long arm of chromosome 6.

oculomandibulodycephaly with hypotrichosis -- see Hallerman-Streiff syndrome.

oculomotor -- 1) moving, or tending to move the eyeball; 2) of or relating to the oculomotor nerve.

ODD -- see oppositional defiant disorder.

odd day cycle menus -- menus planned for a period of days other than a week that repeat after the planned period; cycles of any
number of days may be used. These menus are a means of avoiding repetition of the same foods on the same day of the week.

Oedipus complex -- in Freudian theory, the uncomfortable group of feelings and unconscious desires that young males feel toward
their mothers during development of the superego; also called
Oedipus conflict; Freud: the boy's tendency, around the age of five,
to experience his freshly awakened sexual strivings toward his mother while wanting to replace his father in her affections. Mostly
unconscious. When successfully resolved, these feelings are fully repressed, and the boy, afraid of castration, learns to identify with his
father. As a result of all this, he internalizes his parents and acquires a superego whose ego ideal replaces some of his earlier
narcissism. The feminine equivalent has been named the
Electra Complex, but for Freud, women have inferior superego
development and therefore an inferior conscience because they never have to disidentify with mother as boys do.
Freud saw an
unresolved Oedipal conflict as the cause of every significant neurosis. The name comes from
King Oedipus, who killed his father,
married his mother knowingly, and put his own eyes out (which
Freud interprets as symbolic castration) when he discovered the truth
of his origins. In a late innovation,
Freud was prompted by the work of female analysts like Helene Deutsch to emphasize the initial
pre-Oedipal strength of the mother-daughter bond.

old age -- arbitrarily defined as beginning at age 65, which coincides for most people with retirement

olfactory -- of or relating to the sense of smell

oligohydramnios -- the presence of too little amniotic fluid. It can cause fetal deformities including club foot and hypoplastic lungs.

omission -- articulation disorder in which some of the sounds of a word are omitted.

omnibus clause -- clause added to divorce laws in the 19th century which allowed courts to grant divorces in certain circumstances
beyond customary grounds.

omphalocele -- congenital herniation of abdominal organs through the navel.

one-to-one correspondence -- ability to count objects accurately by assigning one number to each object.

one-way communication -- communication sent from school to inform families without the expectation of a response.

ongoing assessment -- assessment of a child during typical daily activities.

onlooker behavior -- a sub-stage of parallel play in which children watch each other play.

onlooker play -- watch others play; may talk or ask questions.

ontogenesis -- the development of the individual through childhood and adulthood. Distinguished from phylogenesis and
microgenesis.

ontogeny -- the development of an individual.

onychomycosis -- a fungal infection of the nails.

open adoptions -- adoptions in which both birth parents and adoptive parents have more active contact, as in a meeting before the
birth or even lifelong communication.

open-couple single -- a single person with a steady partner, but the relationship is open enough that he or she can have romantic or
sexual relationships with others.

open courtship system -- society in which people make their own decisions about marriage.

open-ended -- activities that do not have a specific end or goal.

open-ended activities -- activities that do not have a specific end or goal.

open-ended question -- a question to which the respondent is free to give an answer in his or her own words.

open fields -- settings in which people do not normally interact and thus make it difficult to meet a potential partner.

open head injury -- injury in which the brain is damaged when the skull is fractured and the membrane surrounding the brain is
penetrated. It can result from such things as bullet wounds, or other external forces that open the head and penetrates the skull.
Damage can be extensive and fatal, but it is usually focal.

open marriage -- also called sexually open marriage; marriage in which a married couple agrees that each may have emotional and
sexual relations with others -- they go out separately as well as together -- while still keeping the marriage the primary relationship.

open method -- recording method that preserves the raw data; only records actions and words so separate conclusions can be drawn

openness to experience -- Rogers: a characteristic of a fully functioning person -- this is the opposite of defensiveness -- the ability
to accept reality and one's own feelings.

open question -- no single, correct answers, creative answers

open school -- a style of education, developed in progressive American schools and in the British infant schools, that is organized to
encourage freedom of choice and that does not use predetermined roles and structures as the basis of education; an educational
setting whose ultimate goal and base for curriculum is the development of the individual child, rather than of programmed academic
experiences.

open system -- a family system that is open to growth and change; also called a morphogenic system.

open type family -- marriage/family system that is sensitive to both individual and family needs and tries to achieve consensus in
ideas and feelings; one of three types of marriage/family systems proposed by
David Kantor and William Lehr in 1975.

operant conditioning -- a category of learning in behavior theory that involves a relation between a stimulus and a response. The
response is learned, rather than reflexive, and is gradually and carefully developed through reinforcement of the desired behavior as it
occurs in response to the stimulus; behavior leading to a reward;
Skinner.

operant control -- control established and maintained by operant contingencies (i.e., the relationships in effect between the behavior
and its consequences).

operant learning -- learning that is controlled by the consequences of behaviors.

operations -- mental representations of actions that obey logical rules (Piaget)

ophthalmologist -- a physician specializing in the treatment of eye diseases; licensed to perform surgery on the eye.

ophthalmoplegia -- paralysis or weakness of one or more of the muscles that control eye movement. It can be due to muscle or nerve
impairment.

ophthalmoscope -- an instrument containing a mirror and a series of magnifying lenses used to examine the interior of the eye.

opiates -- any of the narcotic opioid alkaloids found as natural products in the opium poppy plant, as well as many semisynthetic
chemical derivatives. Major opiates are opium, morphine, codeine, thebaine, papaverine, heroin, oxycodone, hydrocodone

opiate antagonists -- a category of medications that block endorphin receptors of the brain.

opinions -- thoughts and feelings about a given topic.

opisthotonos -- a spasm in which the head and heels are bent backward and body bowed forward; positioning of the body in which
the back is arched while the feet and head touch the bed.

Opitz syndrome (Opitz G/BBB syndrome; Opitz-Frias syndrome; Opitz oculogenitolaryngeal syndrome, previously called G
syndrome) -- (G refers to the surname of original patient described) Hypertelorism, hypospadias, imperforate anus, dysphagia,
bifurcated nasal tip, broad nasal bridge, widow's peak, occasional cleft lip/palate, mild to moderate mental retardation in 2/3 of
affected individuals,
gastroesophageal reflux, esophageal dysmotility (poor movement of food through the esophagus), hoarse
cry, occasional
congenital heart defects, agenesis of corpus callosum, platelet abnormalities, structural cerebellar anomalies
including
Dandy-Walker malformation. Cause: MID1 gene on Xp22.3 is known to cause the X-linked form; the gene believed to
cause the
autosomal dominant form has been linked to 22q11.2.

opportunistic infection -- an infection caused by germs that are not usually capable of causing infection in healthy people but can do
so given certain changes in the
immune system.

opportunity costs -- the loss of wages and investments that parents sacrifice by devoting their time and energy to family and children.

oppositional behavior -- Patterns of child behavior that adults consider excessively negative, troublesome, or challenging.

oppositional defiant disorder (ODD) -- developmental disorder characterized by non-compliance and excessive anger. A pattern of
negativistic, hostile, and defiant behavior lasting at least 6 months, during which 4 or more of the following are present: a) often loses
temper; b) often argues with adults; c) often actively defies or refuses to comply with adults' requests or rules; d) often deliberately
annoys people; e) often blames others for his/her mistakes or misbehavior; f) is often touchy or easily annoyed by others; g) is often
angry or resentful; h) is often spiteful or vindictive. Note: consider a criterion met only if the behavior occurs more frequently than is
typically observed in individuals of comparable age and developmental level. ~The disturbance or behavior causes clinically significant
impairment in social, academic, or occupational functioning. ~The behaviors do not occur exclusively during the course of a psychotic
or mood disorder. ~Criteria are not met for
conduct disorder, and, if the individual is not 18 or older, criteria are not met for
Antisocial Personality Disorder.

opsin -- the protein in rods and cones necessary for vision.

optic atrophy -- a degenerative disease caused by deteriorating nerve fibers connecting the retina to the brain.

optician -- a technician who makes and fits corrective lenses.

optic nerve -- the nerve that connects the eye to the visual center of the brain (visual cortex).

Optico-Cochleo-Dentate degeneration -- a cause of deaf-blindness.

optokinetic -- pertaining to the movement of the eyes.

optometrist -- a non-medical professional who specializes in examining, measuring, and treating visual defects by means of corrective
lenses or other methods.

oral approach (method) -- an educational approach used with children who are deaf that stresses learning to speak as the essential
element for integration into the hearing world.

oral aural -- one communication method available to those who are hearing impaired that includes the use of hearing aids, speech-
reading, and visual aids.

oral literature -- material composed by unknown authors and transmitted by word of mouth. It includes narratives, epic poems,
ballads, nursery rhymes, proverbs, and dramatic material with multiple variants. It is a convenient collective term for the various genres
of orally transmitted material; the term "literature" is usually reserved for written materials.

oral motor exam -- an examination of the appearance, strength, and range of motion of the lips, tongue, palate, teeth, and jaw.

oral motor dysfunction -- a disorder in the development of jaw, cheek, tongue, and lip movements to allow voluntary feeding skills.
Oral motor dysfunction can manifest developmentally with such things as jaw thrust, tonic bite reflex, jaw clenching, and jaw
retraction, all of which may be patterns associated from cerebral palsy. It can also occur as the result of a neurological abnormality
due to
stroke or head trauma; or to injuries, disease, or other congenital sources.

oral motor skills -- ability to use information obtained through oral cues to regulate a pattern of motor responses needed for speech,
chewing, and swallowing.

oral preparatory phase -- the step preceding swallowing in which food is formed into a bolus in the mouth.

oral stage of development -- the first stage in Freud's model of development, during which psychic energy focuses on and is
invested in and around the mouth. The ego directs activities (birth to 1 year).

oral transport stage -- the transport of a bolus of food to the back of the mouth so that it can be swallowed.

orbit -- the eye socket on the skull.

ordering (seriation) -- a mathematical skill involving the ability to perceive opposite ends of a series (e.g., big to little).

ordinality -- a principle specifying order (more than and less than) relationships between quantities.

ordinal numbers -- indicating the order or succession; such as first, second, third.

organelles -- any one of various particles of living substances within all eukaryotic cells, which include the nucleus, mitochondria,
chloroplasts, the Golgi apparatus, the endoplasmic reticulum, the lysosomes, and the centrioles. Organelles are specialized,
membrane-bound, cellular structures that perform a specific function.

organic -- Within the individual's own body or neurological system.

organic acidemias -- class of inborn errors of metabolism affecting organic acid metabolism. These include propionic
acidemia, methylmalonic acidemia, isovaleric acidemia, and multiple carboxylase deficiency.

organic articulation disorder -- a kind of developmental articulation disorder: occurs due to some detectable abnormality, such
as
hearing loss, cleft lip, cleft palate, etc. Children who have a congenital hearing loss will have difficulty learning to speak, and
their speech may be imprecise, unusual in pitch, and nasal sounding. Children who have frequent
middle ear infections may have
similar problem.

organic disorder -- a disorder caused by an identifiable problem in the neuromuscular mechanism.

organic reading -- a system of learning to read, popularized by Sylvia Ashton-Warner, that lets children build their own vocabulary
with the words they choose.

organism -- a total living form; one individual.

organismic event -- a biological or maturational event that provides stimulation for the organism.

organismic model -- orientation with the assumption that people are active rather passive learners.

organismic theory -- developed by Jean Piaget, and expanded by later theorists, a theory of child development emphasizing that
children's minds develop through various stages and that children think very differently from adults; sees child-thought as primitive and
mystical, with logical reasoning developing slowly into adulthood.

organismic trusting -- Freud, Rogers: a characteristic of a fully functioning person: we trust ourselves, do what feels right, what
comes naturally.

organismic valuing -- Rogers: We seek to be the best we can be; we know instinctively what is good for us. We seek food when we
are hungry, and seek food that tastes good. Food that tastes bad might be rotten, spoiled, unhealthy; so we don't eat that food. This is
an example of organismic valuing.

organization -- In Piaget's theory, the internal rearrangement and linking together of schemes so that they form a strongly
interconnected cognitive system. In information processing, the memory strategy of grouping related items.

organized play -- an open, flexible type of play, with some structure provided in terms of materials.

Organ of Corti -- a series of hair cells in the cochlea that form the beginning of the auditory nerve.

organogenesis -- the formation and development of the organs of living things. Organogenesis occurs during the first trimester of
pregnancy.

organomegaly -- the abnormal enlargement of the organs.

organ pleasure -- physical sensation associated with the reduction of tension.

orientation -- conceptual, perceptual, sensory, and body awareness of space and environment. Refers to the skills necessary to use
sensory information to move purposefully in the environment, using environmental cues (e.g., sounds, smells, visual, or tactile stimuli)
to provide information about the present location and information about this location relative to other locations.

orientation and mobility specialist -- Therapist who teaches individuals with vision impairments awareness of their position in the
environment, of significant objects within the environment (orientation), and how to move safely and efficiently (mobility) by utilizing their
remaining senses; a professional trained to assist persons with vision impairments to travel safely and efficiently in their environments.

original man archetype -- Jung: represented in western religion by Adam.

ornithine transcarbamylase (OTC) --
an enzyme in the urea cycle, a
deficiency of which leads to an
inborn error of metabolism characterized by
episodes of
encephalopathy.

oropharynx -- the oral part of the pharynx which reaches from the soft
palate to the level of the hyoid bone ---------------------------------------------->>.

orolingual -- pertaining to the mouth and the tongue.

orthodontist -- dentist who specializes in the correction of irregularities of the
teeth or the improper alignment of the jaw.

orthomolecular therapy -- the use of at least 10 times the required amount
of vitamins; also called
megavitamin therapy.

orthopedic -- relating to bones or joints.

orthopedic and musculoskeletal disorders -- disorders of the child's skeletal system. Includes scoliosis, which involves curvature
of the spine; other spinal disorders; hip conditions, which may result in dislocation;
contractures, which involve shortening of muscles
and tendons;
juvenile rheumatoid arthritis; and disorders of the foot and ankle. These disorders may cause pain and discomfort as
well as hinder movement.

orthopedic development -- the development of the bone and muscle tissue.

orthopedic impairments -- IDEA term for students with physical disabilities; a category in IDEA; bodily impairments that interfere with
an individual's mobility, coordination, communication, learning and/or personal adjustment. A physical impairment of the muscular or
skeletal system that adversely affects a child's educational performance. The term includes impairments caused by a congenital
anomaly (e.g.,
clubfoot, absence of some member, etc.), impairments due to the effects of a disease (e.g., poliomyelitis,
bone tuberculosis, etc.), and impairments from other causes (e.g., cerebral palsy, amputations, and fractures or burns that cause
contractures).

orthopedic problems -- bodily impairments that interfere with an individual's mobility, coordination, communication, learning and/or
personal adjustment. Children with
Down syndrome frequently have abnormally loose ligaments, spinal problems, flat feet, and
juvenile rheumatoid arthritis.

orthoses -- orthopedic devices, most commonly splints or braces, used to support, align, or correct deformities or to improve the
function of limbs.

orthotic devices -- Braces and other devices used to stabilize legs and support the weight of an individual with a physical disability,
so that the person can walk or maintain balance; aids needed for proper body alignment, including braces and splints; devices used to
promote body alignment, stabilize joints, or increase motor functioning.

orthotist -- professional trained in the fitting and construction of splints, braces, and artificial limbs.

Osgood-Schletter Disease (OSD) -- an inflammation (swelling and pain) of the bone, cartilage, and/or tendon at the top of the
shinbone, where the tendon from the kneecap attaches. It usually strikes active teens around the beginning of their growth spurts, the
approximate 2-year period during which they grow most rapidly.

ossicles -- the three small bones in the middle ear, the stapes, incus, and malleus-->>.

ossicular chain -- the three small bones, the malleus, incus, and stapes (or hammer,
anvil, and stirrup), that transmit vibrations through the
middle-ear cavity to the inner ear.

ossification – the development of bone.

osteoarthropathy -- disorder affecting bones and joints.

osteoarticular -- pertaining to or affecting the bones and joints.

osteoarthritis -- degenerative joint disease.

osteoblast -- cell type that produces bony tissue.

osteoclast -- cell type that absorbs and removes bone.

osteogenesis imperfecta -- seven distinct forms of this metabolic disease of bone have
been described.
Type I is characterized by typical height or mild short stature, bone fragility, and blue sclera. Type II usually presents
with severe bone deformity and death in the newborn period.
Type III is characterized by progressive bone deformity, short stature,
triangular face, severe
scoliosis, and dental abnormalities. Type IV is clinically similar to Type I, but presents with normal sclerae,
milder bone deformity, variable short stature, and dental abnormalities.
Type V is associated with mild to moderate short stature, bone
deformity, and other bone abnormalities.
Type VI is characterized by severe bone deformity with moderate short stature and a fish
scale pattern of bone deposition.
Type VII causes moderate bone deformations, mild short stature, with a shortening of the long
bones (humerus and femur). Associated complications: increased prevalence of fractures (may be confused with physical abuse)
that decreases after puberty,
scoliosis, mitral valve prolapse, occasionally progressive adolescent-onset hearing loss. Cause:
mutations in one of the genes regulating collagen formation.
Type I maps to 17q21--q22 (COLA1). Types II through IV map to both the
COLA1 gene and 7q21 -- q22 (COLA2). The genetic cause of
Types V, VI, and VIII are yet to be determined. Inheritance: Type I, IV, V,
VI:
autosomal dominant; type II -- autosomal dominant (all Type II cases are new mutations; recurrence risk is 6% due to gonadal
mosaicism);
Type III is occasionally autosomal recessive; type VII is autosomal recessive (seen only in indigenous people in
Northern Quebec).

osteoid -- the substrate of bone.

osteomyelitis -- a bone infection that is often caused by staphylococcus aureus bacteria, though other kinds of bacteria can cause
it too. In children,
osteomyelitis usually affects the long bones of the arms and legs. Osteomyelitis often develops after an injury or
trauma.

osteopenia -- the loss of bony tissue.

osteopetrosis -- a disorder in which bone becomes dense and scelrotic, leading to thickening of skull and long bones, head
enlargement.
Bone marrow is encroached upon, resulting in anemia. This disorder often causes early death. Osteopetrosis is
caused by a
congenital abnormality of osteoclast cells and therefore failure of resorption of bone. Autosomal recessive. X-rays
reveal sclerotic skeletal system; can possible be improved with bone marrow transplantation. Associated complications are entrapment
of
cranial nerves, anemia, growth delay, blindness, deafness, and mental retardation. Incidence: very rare. Less than 100 cases
have been reported; recurrence risk to patient's siblings, 25%.

osteoporosis -- a disease that involves a serious loss of bone density. Bone tissue becomes brittle, thin, and spongy. Bones break
easily, and the spine sometimes begins to crumble and collapse. Although the condition usually affects older people, children with
eating disorders are susceptible to the condition. Exercising regularly and getting plenty of calcium can prevent or delay
osteoporosis
later in life;
multifactorial.

osteosarcoma -- (osteogenic sarcoma)
a cancerous (malignant) bone tumor that usually develops during the rapid growth that
occurs in adolescence, as a teenager matures into an adult. Symptoms are bone fractures, bone pain, limitation of motion, limping, pain
when lifting (if the tumor is in th arm), and tenderness, redness, or swelling at the site of the tumor. It is the most common malignant
bone tumor in youth. The average age of diagnosis is 15; boys are girls are equally affected. Cause is unknown.
 

ostomies --
artificial openings in the abdominal region for discharge of stool or urine.

OT -- see occupational therapist

OTC --
see ornithine transcarbamylase.

other
cancers of childhood (not including bone cancer, leukemia, liver cancer, soft tissue sarcoma) -- cancer can occur
anywhere in the body, but more common sites among children are brain, nervous system (
neuroblastoma), the retina
(
retinoblastoma), or the kidney (Wilms tumor).

other health impairments -- IDEA category for students having medical conditions that result in limited strength, vitality, or alertness
including a heightened alertness to environmental stimuli, that results in limited alertness with respect to the educational environment,
that is due to chronic or acute health problems, such as
asthma, attention deficit disorder (ADD), attention deficit hyperactive
disorder (ADHD), diabetes, epilepsy, a heart condition, hemophilia, lead poisoning, leukemia, nephritis, rheumatic fever, and
sickle cell anemia; and adversely affects a child's developmental/educational performance; any disability caused by disorders of the
musculoskeletal system. ADHD is generally diagnosed under this category. Tourette Syndrome is also included here.

other syndromes associated with autism -- Moebius syndrome (facial diplegia), Joubert syndrome (cerebellar hypoplasia),
Down syndrome, CHARGE syndrome, Smith-Lemli-Opitz syndrome, William syndrome, Landau-Kleffner syndrome, tuberous
sclerosis, Fragile X syndrome, Angelman syndrome, Prader-Willi syndrome.

otitis media (middle ear infection or disease) -- An infection or inflammation of the middle ear that can cause a conductive
hearing loss. Middle ear infections with fluid that may be mediated by antibiotics and tympanostomy tubes, or left to resolve.
Children with chronic
middle ear infections (more than 6 episodes within a 12-month period) can cause mild conductive hearing
losses. Ear infections usually begin with a cold or flu, which cause nasal congestion. The congestion affects the eustachian tubes,
which connect the inner nasal cavities with the middle ear for ventilation within the middle ear. When these tubes become congested,
they seal pressure within the
middle ear. This negative pressure, combined with the presence of excess mucous, creates an
environment where bacteria can grow. This impairs hearing. Frequent occurrences of
otitis media can affect the development of
speech and language. If otitis media is not treated, permanent hearing loss and brain damage can occur.

otoacoustic emissions -- low-intensity sound energy emitted by the cochlea subsequent to sound stimulation as measured by a
microphone coupled to the external ear canal.

otolaryngologist -- see ear, nose, and throat specialist.

otologist -- a medical specialist involved in the study of the ear and its diseases; see ear, nose, and throat specialist.

otosclerosis -- a disease of the ear characterized by destruction of the capsular bone in the middle ear and the growth of a web-like
bone that attaches to the
stapes. The stapes is restricted and unable to function properly.

ototoxic -- toxic to the auditory nerve, leading to hearing impairment.

ototoxic agents -- a cause of hearing loss. Certain antibiotics used to treat severe bacterial infections in childhood can lead to a
sudden unilateral
sensorineural hearing loss. Traumatically loud noises can do this also (such as firecrackers, fireworks, cap
pistols). Over time, exposure to such sounds can cause
permanent hearing loss.

OTR -- see occupational therapist.

outcome based intervention model --
an emphasis on development of skills for future usefulness.

outer-directedness -- a condition in which an individual distrusts his/her own solutions and seeks cues from others.

outer ear -- consists of the auricle and external auditory canal; see external ear.

out-of-school time care -- programs for school-aged children that takes place before and after their regular school day.

outsider perspective -- how researchers or therapists perceive a family, in contrast with how family members perceive the family.

oval window -- connects the middle ear to the inner ear.

ovaries -- the female gonads (sex glands) which produce ova and hormones
----------->>.

overburdened child -- after a divorce, a child who tries to meet all of the
parents' needs.

overdependence -- a child's inability or unwillingness to participate in activities
without the aid of an adult.

overextension -- an early vocabulary error in which a word is applied too
broadly -- that is, to a wider collection of objects or events than is appropriate.

overfunctioner -- an individual who knows what is best not only for him or
herself but for everybody else as well; they cannot let others solve their
problems themselves.

overgeneralization -- early stage in grammar construction where child adds "s"
to all words for plural and "ed" to all words for past tense.

overlap -- categorization of a research subject in one group on the basis of one
variable (such as age) when that subject is also at one extreme on another
variable relative to that group.

overlapping-waves theory -- a theory of problem solving, which states that when given challenging problems, children generate a
variety of strategies and gradually select those that result in rapid, accurate solutions, yielding an overlapping-waves pattern of
development.

overregularization -- Grammatical error; usually appearing during early language development, in which rules of the language are
applied too widely, resulting in incorrect linguistic forms (i.e., "childs" or "goed").

overt aggression -- a form of hostile aggression that harms others through physical injury or the threat of such injury -- for example,
hitting, kicking, or threatening to beat up a peer.

overweight -- weight that exceeds (by 20% or less) the recommendations for "desirable" body weight.

oviduct -- in the female reproductive system, one of a pair of tubes through which the ova travel from
an
ovary to the uterus; also called fallopian tubes.

ovulation -- the regular monthly release in the female of one or more eggs from an ovary.

ovum -- the female reproductive germ cell, or egg, produced by the ovaries (see series of pictures).

oxidative phosphorylation --
a chemical reaction occurring in the mitochondrion, resulting in energy
production.

oxygen -- a non-metallic element constituting 21% of the atmosphere by volume and 46% of the earth's crust
by weight, where it is the most plentiful element. It is a colorless, odorless, tasteless gas that occurs as a diatomic
gas (O₂) and in many compounds such as water and iron ore. It combines with most elements, is essential
for respiration. Atomic number 8, atomic weight 15.9994; melting point -218.4° C; boiling point
-183.0° C; gas density at 0 degrees C 1.429 grams per liter; valence 2. The human body is about 2/3
oxygen.

oxygenation -- the provision of sufficient oxygen for bodily needs.

oxytocin -- a peptide also known as the "commitment molecule." It is released during sex and
pregnancy and influences "unlearning" and pair bonding. During
pregnancy, it is released to induce
labor.
NO
"The most wasted of
all days is one
without laughter."
e.e. cummings
The human egg, or ovum:
top, before fertilization;
middle, after fertilization
and 1 cell division; bottom,
after 2 cell divisions.