Shuddering attacks. Evaluation using electroencephalographic frequency modulation radiotelemetry and videotape monitoring.

Three children who had frequent shuddering or shivering attacks were studied using electroencephalographic frequency modulation radiotelemetry and videotape monitoring. The attacks consisted of bilateral fine tremors, sometimes associated with stiffening of the upper extremities. The attacks were not associated with any electroencephalographic abnormalities. Shuddering attacks appear to be a benign movement disorder.