Interruption of phonological coding in conduction aphasia.
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.
D001037:Aphasia / Q000523:psychology*; D001288:Attention; D002544:Cerebral Infarction / Q000523:psychology; D005260:Female; D006801:Humans; D008570:Memory, Short-Term; D008875:Middle Aged; D010364:Pattern Recognition, Visual; D010700:Phonetics; D010898:Pitch Perception; D013067:Speech Perception; D013068:Speech Production Measurement; D014706:Verbal Learning