Unilateral Apraxic Agraphia without Ideomotor Apraxia from a callosal lesion in a patient with Marchiafava-Bignami disease.
Unilateral Apraxic Agraphia without Ideomotor Apraxia from a callosal lesion in a patient with Marchiafava-Bignami disease.
Neurocase. 2018 Feb 26;:1-9
Authors: Kesayan T, Heilman KM
Abstract
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.
PMID: 29482459 [PubMed - as supplied by publisher]
Source: Neurocase - Category: Neurology Authors: Kesayan T, Heilman KM Tags: Neurocase Source Type: research