startle syndrome

startle syndrome

A rare, autosomal dominant neurological disorder in which affected persons have either brisk reflexes or sudden loss of consciousness with muscular rigidity when suddenly stimulated (e.g., by a loud noise or bright light). Treatment with benzodiazepines, such as clonazepam, is often beneficial.
References in periodicals archive ?
Cases relate to Parkinson's disease and other Parkinsonian disorders, tremors, chorea, dystonia, ataxia, tics and stereotypies, myoclonus and startle syndromes, and psychogenic movement disorder presentations.
Audiogenic startle reflex of man and its relationship to startle syndromes.
A broad range of disorders is covered, including acute dystonic reactions, neuroleptic malignant syndrome, startle syndromes, and tic emergencies.