Body representation in people with apraxia post Stroke- an observational study

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Cognitive Psychology

Background:

• Stroke can lead to neurological deficits, including apraxia, which affects motor planning.
• Body representation, encompassing body schema and body image, is crucial for motor control.
• Understanding how stroke impacts body representation in apraxia is vital for effective rehabilitation.

Purpose of the Study:

• To examine the effects of apraxia on body schema and body image following supratentorial stroke.
• To compare body representation in stroke survivors with and without apraxia.

Main Methods:

• An observational, cross-sectional study was conducted with 30 post-stroke participants (10 with apraxia, 20 without).
• Body schema was assessed using hand laterality recognition and body part knowledge tests.
• Implicit body image was evaluated using the sidedness test.

Main Results:

• The apraxic group more frequently had left-sided brain lesions.
• Participants with apraxia demonstrated significantly poorer accuracy and slower reaction times on hand laterality tasks.
• Apraxic individuals showed reduced performance on body part knowledge tests, but body image (sidedness test) was unaffected.

Conclusions:

• Apraxia following stroke is associated with deficits in body schema, essential for action planning and execution.
• These findings suggest that targeting body schema impairments could be a valuable addition to apraxia rehabilitation strategies.