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

Academic Article


  • © 2018 Informa UK Limited, trading as Taylor & Francis Group. 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.
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    Author List

  • Kesayan T; Heilman KM
  • Start Page

  • 59
  • End Page

  • 67
  • Volume

  • 24
  • Issue

  • 1