98 Patients with unilateral hemispheric damage (50 aphasics, 18 non aphasic left and 30 right brain damaged patients) and 60 control subjects without cerebral lesions were given a verbal comprehension test requiring the identification of 20 picturable words. The patients were asked to listen to each word and to indicate which of the 6 pictures represented the object that the examiner had named. The test allowed both a quantitative score (number of correct responses) and a qualitative score (number of acoustic, semantic and odd errors). The performance of the aphasic subjects was significantly poorer than the non aphasic brain damaged patients, and within the aphasic group a double dissociation was found between the patients who showed in their expressive language a prevalence of 'phonemic paraphasias' and those who showed a prevalence of 'semantic paraphasias'. The first subjects obtained (at the verbal comprehension test) a number of 'acoustic phonemic errors' higher than the other aphasic patients; the second group of patients showed, on the contrary, the tendency to obtain a more important number of 'semantic errors'. Some implications of these findings are discussed.
|Translated title of the contribution||Phonemic and semantic disorders of recognition in aphasiacs|
|Title of host publication||ARCH.PSICOL.NEUROL.PSICHIAT.|
|Number of pages||25|
|Publication status||Published - 1973|
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