Dissociations of writing and praxis: Two cases in point

Academic Article


  • For normal writing it is essential that both motoric and linguistic competence be present; disruption of one or the other of these faculties may result in qualitatively different types of agraphia. Two right-handed patients became agraphic after left hemisphere lesions; pure agraxic agraphia in the absence of limb apraxia developed in one patient and pure linguistic agraphia in association with severe ideomotor limb apraxia in the other. The performance of these patients not only serves to illustrate the dissociation between the motoric and linguistic faculties that underlie writing but also confirms that ideomotor limb apraxia and apraxic agraphia are distinct and dissociable entities. © 1986.
  • Authors

    Published In

  • Brain and Language  Journal
  • Digital Object Identifier (doi)

    Author List

  • Coslett HB; Rothi LJG; Valenstein E; Heilman KM
  • Start Page

  • 357
  • End Page

  • 369
  • Volume

  • 28
  • Issue

  • 2