ideomotor apraxia
Pronunciation: eye-dee-oh-MOH-tor uh-PRAK-see-uh
Inability to perform learned motor tasks on command despite understanding the request and having intact motor function.
Full Definition
Ideomotor apraxia is a neurological disorder characterized by the inability to perform previously learned skilled movements on verbal command, despite intact comprehension, motor strength, and coordination. Patients can often perform the same actions spontaneously or when using actual objects, but cannot execute them when asked to pantomime the movement. This condition typically results from lesions in the left parietal lobe or disconnection between language and motor areas. Common examples include difficulty pantomiming brushing teeth, waving goodbye, or using tools when the actual objects are not present.
Usage
Usage note: Distinguish from ideational apraxia (conceptual knowledge deficit) and limb-kinetic apraxia (fine motor control loss).
In Context
- "The patient demonstrated ideomotor apraxia when asked to show how to use a hammer but could perform the action when given the actual tool." — Neuropsychological testing report
- "Ideomotor apraxia was evident in the patient's inability to pantomime brushing her teeth despite understanding the instruction." — Occupational therapy evaluation