national informational and support group that disseminates information on diagnosis and medical/education needs, publishes brochures, etc. For address, see Appendix I.
See also hyperactivity; learning disabilities.
Central Linguistic Auditory Milestones Scale (CLAMS) A screening instrument that is easily administered and indicates delay in expressive and receptive language up to the age of three years. See also early language milestone scale (elm).
central nervous system (CNS) The collective term for the brain and the spinal cord, which is the two-way highway for messages between the brain and the rest of the body. The CNS is responsible for integrating all nervous activities and works together with the peripheral nervous system (pns), which consists of all the nerves that carry signals between the CNS and the rest of the body.
The cNs receives sensory information from all sensory organs in the body; analyzes this information; and triggers appropriate motor responses.
The CNS consists of neurons cells and supporting cells. Injury or disease involving the CNS usually causes permanent disability.
central nervous system depressants A group of drugs that cause sedation or diminish brain activity. These drugs include alcohol, aminoglutethimide, anesthetics, anticonvulsants, antidepressants, anti-dyskinetics (except amantadine), antihistamines, apomorphine, baclofen, barbiturates, benzodiazepines, buclizine, carbamazepine, chloral hydrate, chlorzoxazone, clonidine, cyclizine, difenoxin and atropine, diphenoxylate and atropine, disulfiram, dronabinol, ethchlorvynol, ethinamate, etomidate, fenfluramine, flavoxate, glutethimide, guanabenz, guanfacine, haloperidol, hydroxyzine, interferon, loxapine, magnesium sulfate, matprotiline, mecli-zine, meprobamate, methyldopa, methyprylon, metoclopramide, metyrosine, mitotane, molin-done, opiod (narcotic) analgesics, oxybutynin, par-aldehyde, paregoric, pargyline, phenothiazines, pimozide, procarbazine, promethazine, propi-omazine, rauwolfia, scopolamine, skeletal muscle relaxants, thioxanthenes, trazodone, trimeprazine, and trimethobenzamide.
central nervous system stimulants Drugs that cause anxiety, excitation, or nervousness or that otherwise stimulate the brain and central nervous system. These drugs include amantadine, amphetamines, anesthetics, appetite suppressants (except fenfluramine), bronchodilators (xanthine-derivative), caffeine, clophedianol, cocaine, doxapram, methylphenidate, pemoline and sympathomimet-ics.
central sulcus The main fissure that separates the frontal lobe from the parietal lobe behind it.
centrophenoxine (Lucidril) This drug is believed to improve cognitive function and may remove deposits of lipofuscin (the material precursor to "age spots"). Lipofuscin accumulates in the brain cells with age, and decreased deposits have been correlated with improved learning ability. in some studies, centrophenoxine appears to remove
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