Interruption of phonological coding in conduction aphasia |
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Authors: | Frances J. Friedrich Christine G. Glenn Oscar S. M. Marin |
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Affiliation: | Cognitive Neuropsychology Laboratory, Department of Neurology, Good Samaritan Hospital & Medical Center, Portland, Oregon, USA |
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Abstract: | A case study of conduction aphasia, investigating single word repetition, phonological coding, and short-term memory, is reported. Evidence from intact adults suggests that repetition can occur through either a lexical route or a direct auditory-articulatory link. For this conduction aphasic, E.A., the direct link was impaired, although the lexical route could be used to produce accurate single word repetition. Several experiments demonstrated a significant impairment in the generation and maintenance of an abstract phonological code. The consequences of a disruption of phonological coding on speech perception and on verbal short-term memory are discussed. |
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Keywords: | Send requests for reprints to Dr. Frances Friedrich Cognitive Neuroscience Laboratory VA Medical Center 2615 East Clinton Fresno CA 93703. |
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