A case with writing disturbance due to cerebral infarction in the left parietal lobe *
We reported the case of an 80-year- old male patient with writing disturbance due to cerebral infarction in the left parietal lobe. Since his writing disturbance was caused by impairment of a motor element, rather than a language element, a diagnosis of apraxic agraphia was made. Previously reported cases with apraxic agraphia have shown a wide variety of their neuropsychological symptoms. This patient had normal letter knowledge and his discrete finger movement remained normal. The patient's writing disturbance could be mostly explained by motor apraxia restricted to the writing movement. In this case, memories of the motor patterns necessary for writing letters may be disturbed among various motor elements of the writing process. Thus, we consider this case as one of “pure” apraxic agraphia. (Accepted on September 27，2007)
