alien limb phenomenon

A clinical finding in which there is awkward asymmetrical involuntary movement of the hand or limb, which is interpreted by internal sensors as ‘alien’; the patient’s limb moves as if of its own volition

alien limb phenomenon

A rare disorder of movement and sensation in which sudden unexpected movements of a hand or foot occur and are felt by the patient experiencing them to be either involuntary or initiated by others. Synonym: anarchic hand;
Synonym: alien hand syndrome; Dr. Strangelove syndrome