Disorders of classificatory activity in aphasia |
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| Authors: | Guido Gainotti Sergio Carlomagno Angela Craca Maria Caterina Silveri |
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| Affiliation: | 1. Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India;2. Centre for Cellular and Molecular Research, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India;1. Department of Psychology, Northwestern University, Evanston, Chicago, IL, USA;2. Department of Psychiatry, Northwestern University, Evanston, Chicago, IL, USA;3. Institute for Policy Research, Northwestern University, Evanston, Chicago, IL, USA;4. Department of Medical Social Sciences, Northwestern University, Evanston, Chicago, IL, USA;1. Speech Neuroscience Lab, Department of Communication Sciences and Disorders, Arnold School of Public Health, University of South Carolina, 915 Greene Street, Columbia, SC 29208, United States of America;2. Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, 915 Greene Street, Columbia, SC 29208, United States of America;3. Aphasia Lab, Department of Communication Sciences and Disorders, Arnold School of Public Health, University of South Carolina, 915 Greene St., Columbia, SC 29208, United States of America;4. Center for the Study of Aphasia Recovery (C-STAR), Department of Communication Sciences and Disorders, Arnold School of Public Health, University of South Carolina, 915 Greene St., Columbia, SC 29208, United States of America |
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| Abstract: | Two nonverbal tasks of classificatory activity ("class inclusion" and "class intersection") were administered to 46 aphasics, 28 normal controls, 19 nonaphasic left-brain-damaged and 17 right-hemisphere-damaged patients in order to study if aphasic patients are more impaired than nonaphasic brain-damaged patients on these two tasks of elementary logic and if a relationship exists within the aphasic patients between inability to perform the tasks of classifiactory activity and impairment of the semantic-lexical level of integration of language. Results were for the most part in line with expectations because aphasics scored worse than normal controls and nonaphasic brain-damaged patients (even if the difference reached the level of statistical significance only on the test of "class intersection") and within the aphasic patients the worst results were obtained by subjects presenting clear signs of semantic-lexical disintegration. |
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