Greek for "inability to act".
Apraxia is a
disturbance in organisation of
voluntary action, caused by a
lesion in the frontal
association area.
Symptoms do not typically include any weakness or
sensory loss, and simple movements can be made.
Sufferers of apraxia are unable to perform
complex acts involving sequences of
muscle contraction or planned
strategy, such as combing hair.
Other disorders of
cortical association areas include
agnosia,
unilateral hemi-neglect,
aphasia, and
alexia.