alien hand

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 hand

Alien limb phenomenon Neurology A clinical finding in which there is awkward asymmetic involuntary movement of the hand or limb, which is interpreted by the internal sensors as 'alien'; the limb moves without being controlled by the Pt. Cf Progressive supranuclear palsy.