<unk>  is abnormal writhing movements, usually of the fingers, caused by a failure of joint position sense (proprioception) and indicates disruption of the proprioceptive pathway, from peripheral nerve to parietal cortex.
Pseudoathetosis
Choreoathetosis
Chorea
Athetosis
Dystonia
Episodic ataxia
Lenticonus
Myoclonus