ideomotor apraxia
Pronunciation: eye-dee-oh-MOH-tor uh-PRAK-see-uh
Inability to perform learned skilled movements on command despite understanding the task and having intact motor function.
Full Definition
Ideomotor apraxia is a higher-order motor disorder characterized by the inability to perform previously learned skilled movements on verbal command or imitation, despite preserved comprehension of the task and intact elementary motor and sensory functions. Patients understand what they are asked to do but cannot translate this knowledge into the appropriate motor program. The condition typically affects symbolic gestures (such as waving goodbye) and tool use pantomimes (such as hammering). Ideomotor apraxia commonly results from lesions in the left parietal lobe, particularly the supramarginal and angular gyri, and is frequently associated with stroke. The disorder can significantly impact activities of daily living and rehabilitation potential.
Usage
Usage note: Distinguish from ideational apraxia (conceptual errors) and document specific types of gestures affected.
In Context
- "The patient demonstrated ideomotor apraxia, unable to pantomime brushing teeth despite understanding the instruction." — Occupational therapy evaluation
- "Ideomotor apraxia was more severe for symbolic gestures than for tool use in this left parietal stroke patient." — Neuropsychological testing report