apraxia
Apraxia is a movement disorder, which refers to the dysfunction of the higher brain parts after brain damage. It is manifested as the movement disorder of the limbs in the absence of paralysis and deep sensory impairment. It is an acquired, voluntary, purposeful and skilled movement disorder. The patient is conscious and can fully understand the required actions, but cannot execute them. He cannot complete the purposeful skill movements that he had already mastered and could complete before the disease. This kind of apraxia cannot be explained by primary sensory and motor disorders, nor can it be explained by dementia, emotional disorders, aphasia, agnosia, mental symptoms and non-cooperation.