[Reproduction of a given frequency of rhythmic movements in lesions of different motor formations].
By means of the tapping method the authors studied the capability of reproducting induced paces of rhythmical movements in 22 patients with the localization of the pathological process in subcortical nodes and in the brain stem. The induction of temporary programmes was accomplished by an electrophotostimulator, while the tapping registration--by an electromyo- and electroencephalographic method. It was demonstrated that in parkinsonic patients the most successful reproduction was accomplished in a pace of 6 hz. In cortical lesion there was a tendency to slow pace (1-2 hz), to a perseveration of made mistakes and a difficulty in transmitting from one pace to another. In stem lesions there was a disturbance in the reproduction of paces in all series of the experiment. The authors discuss the hypothesis of an existence of endogenous temporary programmes as an independent neurophysiological factor. It is being assumed that a study of the influence of external rhythmical signals on the internal (endogenous) time may have a decisive importance for special methods of rehabilitation of motor functions.
D001927:Brain Diseases / Q000503:physiopathology*; D002540:Cerebral Cortex; D006801:Humans; D008032:Limbic System; D009048:Motor Skills; D009069:Movement Disorders / Q000503:physiopathology*; D010300:Parkinson Disease / Q000503:physiopathology; D010507:Periodicity; D012154:Reticular Formation
Vosproizvedenie zadannykh tempov ritmicheskikh dvizheniĭ pri porazhenii razlichnykh motornykh obrazovaniĭ