Akathisia, a state of uncontrollable motor restlessness, is a side effect of neuroleptic treatment. The prevalence rate of akathisia in 94 adults with mental retardation was estimated to be 5% in neuroleptic-free subjects, 17% in neuroleptic-maintenance subjects, and 25% in neuroleptic-reduction subjects. Akathisia was also related to dyskinesia…

The arm tremor of adults (n=32) diagnosed as having mental retardation and/or tardive dyskinesia was examined through an analysis of the acceleration properties of several arm postures. The degree of arm acceleration was increased in all subjects compared to a control group without mental retardation. Effects of neuroleptic medication were noted.…

Followup 8 years after reduction of antiepileptic drugs in 50 institutionalized developmentally disabled epileptic patients found recurrence of seizures in 26 patients. Predictors for a seizure-free state off medication included few documented seizures in lifetime, no gross neurological abnormalities, and persistently normal electroencephalograms.…

Five responses to Alvarez (EC 220 238) comment on discontinuation of antiepileptic drugs with mentally retarded patients. (DB)