alien hand syndrome
Neurological disorder where one hand performs purposeful movements without conscious control or intention.
Full Definition
Alien hand syndrome is a rare neurological condition characterized by involuntary, purposeful movements of one hand that occur without the patient's conscious intention or control. The affected hand may perform complex activities such as unbuttoning clothes, reaching for objects, or interfering with the actions of the normal hand. This syndrome typically results from lesions affecting the corpus callosum, anterior cingulate cortex, or supplementary motor area. Patients retain normal sensation and strength in the affected limb but report feeling that the hand belongs to someone else or has a mind of its own.
Usage
Usage note: Also known as Dr. Strangelove syndrome in popular references.
In Context
- "The patient's alien hand syndrome resulted in the left hand repeatedly undoing tasks performed by the right hand." — Neurological examination
- "Behavioral strategies were implemented to manage the disruptive movements associated with alien hand syndrome." — Rehabilitation intervention