Visually- and motor-based knowledge of letters: evidence from a pure alexic patient - Inserm - Institut national de la santé et de la recherche médicale Accéder directement au contenu
Article Dans Une Revue Neuropsychologia Année : 2002

Visually- and motor-based knowledge of letters: evidence from a pure alexic patient

Résumé

We describe a patient, VSB, whose reading was impaired as a consequence of a left temporal- parietal lesion, whereas writing was relatively preserved. At variance with other pure alexic patients described in the literature, VSB claimed to have become unable to mentally visualise letters and words. Indeed, his performance on a series of tests tapping visual mental imagery for orthographic material was severely impaired. However, performance on the same tests was dramatically ameliorated by allowing VSB to trace each item with his finger. Visual mental imagery for non-orthographic items was comparatively spared. The pattern of dissociation shown by VSB between impaired visual mental imagery and relatively preserved motor-based knowledge for orthographic material lends support to the view that separate codes, respectively based on visual appearance and on motor engrams, may be used to access knowledge of the visual form of letters and words.
Fichier principal
Vignette du fichier
Bartolomeo.pdf (858.67 Ko) Télécharger le fichier
Loading...

Dates et versions

inserm-00090736 , version 1 (01-09-2006)

Identifiants

Citer

Paolo Bartolomeo, Anne-Catherine Bachoud-Lévi, Sylvie Chokron, Jean-Denis Degos. Visually- and motor-based knowledge of letters: evidence from a pure alexic patient: Visually- and motor-based knowledge of letters. Neuropsychologia, 2002, 40 (8), pp.1363-71. ⟨10.1016/S0028-3932(01)00209-3⟩. ⟨inserm-00090736⟩
171 Consultations
587 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More