akinetic mutism
A neurological syndrome characterized by profound apathy and lack of voluntary movement or speech despite preserved consciousness.
Full Definition
Akinetic mutism is a severe neurological condition where patients remain awake and alert but exhibit profound apathy, lack of spontaneous movement, and absence of speech. Unlike catatonia or stupor, patients retain the ability to track with their eyes and may respond to strong stimuli. This condition typically results from bilateral frontal lobe damage, anterior cingulate cortex lesions, or damage to the reticular activating system. It represents a disconnect between awareness and the motivation or ability to act.
Usage
Usage note: Often confused with other consciousness disorders; emphasize the preservation of awareness.
In Context
- "The patient exhibited akinetic mutism following bilateral anterior cingulate cortex infarction." — Clinical assessment report
- "Distinguish akinetic mutism from locked-in syndrome by testing eye movement responses." — Diagnostic guideline