| Context |
Other investigators support a parietal locus (Kinsbourne & Rosenfeld, 1974), whereas a number accept a frontal and posterior localization and maintain that there are two forms of the defect, one a grapheme selection disorder and the other a spatiotemporal disorganization specific to writing (Dubois, Hecaen, & Marcie, 1969). The demonstrated existence of cases of pure agraphia, as well as, dissociations between severity of written and spoken language, argues for a functional autonomy between written and oral codes (Marcie & Hecaen, 1979). This is further supported by the less frequent association-of writing disorders with deficits in oral language in left-handers. Rosati and De Bastiani (1979) considered the pure agraphia in them; patient having a vascular lesion in the language zone (perisylvian region of the left hemisphere) to represent a discrete form of aphasia.
|
