1/4. The effect of central nervous system stimulants on tourette syndrome.A survey of patients with tourette syndrome uncovered 32 who had been exposed to central nervous system stimulants. In 17 (53%) of these patients, symptoms were markedly accentuated by the drugs. Two patients whose tourette syndrome developed suddenly when methylphenidate was administered are also reported.- - - - - - - - - - ranking = 1keywords = central nervous system, nervous system (Clic here for more details about this article) |
2/4. Hyperkinetic dysarthria as an early indicator of impending tardive dyskinesia.Tardive dyskinesia is a potentially irreversible disturbance of the central nervous system that is associated with the chronic ingestion of neuroleptic medications. Abnormal movements within the oral musculature are characteristic of tardive dyskinesia and are manifested in motor speech production as hyperkinetic dysarthria. Early detection of hyperkinetic dysarthria in patients who have chronically ingested neuroleptic agents may play a critical role in preventing an irreversible condition of tardive dyskinesia.- - - - - - - - - - ranking = 0.2keywords = central nervous system, nervous system (Clic here for more details about this article) |
3/4. Behavioral and nystagmus response of a hyperkinetic child to vestibular stimulation.A five-year-old boy, referred for hyperkinetic behavior, was tested for vestibular function before and after a four-week regime of controlled semicircular canal stimulation. Hyperkinetic behavior was assessed both during and after the four-week treatment period. Initial testing showed that semicircular canal function was normal, but that two measurable central nervous system mechanisms representing integration of the sensory signal were not at a normal level. Behavioral instruments demonstrated an improvement in symptoms of hyperkinetic behavior. It is postulated that the behavioral improvement resulted from an increase in task-relevant arousal in the reticular formation, accompanied by increased cortical inhibition.- - - - - - - - - - ranking = 0.2keywords = central nervous system, nervous system (Clic here for more details about this article) |
4/4. Transient hemiballismus and subclavian steal syndrome. Case report.Transient hemiballismus was observed in a 74-year-old man, displaying subclavian steal syndrome. Such a correlation has not been previously reported in the literature. In this case, transient hemiballismus seemed to depend on hemodynamic factors, but other mechanisms possibly explaining early recovery of the hyperkinesias are discussed. In particular, stress is laid upon the role of preexisting pathological changes of the central nervous system (diffuse cerebral atrophy) associated to the "releasing" lesion.- - - - - - - - - - ranking = 0.2keywords = central nervous system, nervous system (Clic here for more details about this article) |