(îò ãðå÷. athetos - íåóñòîé÷èâûé) - íåïðîèçâîëüíûå ñòåðåîòèïíûåäâèæåíèÿ âñëåäñòâèå ìåäëåííûõ òîíè÷åñêèõ ñîêðàùåíèé ìûøö ïðè ïîðàæåíèèïîäêîðêîâûõ îòäåëîâ ãîëîâíîãî ìîçãà. Âèä ãèïåðêèíåçà.