Unilateral Apraxic Agraphia without Ideomotor Apraxia from a callosal lesion in a patient with Marchiafava-Bignami disease

作者：Kesayan T^*; Heilman K M

来源：Neurocase, 2018, 24(1): 59-67.

DOI：10.1080/13554794.2018.1444780

• Agraphia
• Apraxia
• callosal disconnection
• Marchiafava- Bignami

Apraxic agraphia can be caused by left hemispheric cerebral lesions in the area that contains the spatial representations of the movements required to write, from a lesion in, or connections to, the frontal premotor cortex that converts these spatial representations to motor programs (Exner's area). A right-handed woman with Marchiafava Bignami disease and lesions of the genu and splenium of her corpus callosum had apraxic agraphia without ideomotor apraxia of her left. A disconnection of Exner's area in the left hemisphere from the right hemisphere's premotor and motor areas may have led to her inability to write with her left hand.

• 出版日期2018