The Mapping from Sound Structure to the Lexicon in Aphasia: Evidence from Rhyme and Repetition Priming
| Autor: | William P. Milberg, Sheila E. Blumstein, Todd J. Brown, Kathleen Kurowski, Adele Hutchinson, Martha W. Burton |
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| Rok vydání: | 2000 |
| Předmět: |
Male
Linguistics and Language medicine.medical_specialty Cognitive Neuroscience media_common.quotation_subject Repetition priming Experimental and Cognitive Psychology Audiology Lexicon Severity of Illness Index Vocabulary Language and Linguistics Developmental psychology Speech and Hearing Phonetics Aphasia Reaction Time medicine Humans Language disorder Aged media_common Memory Disorders Repetition (rhetorical device) Rhyme Phonology Middle Aged medicine.disease Speech Perception Female medicine.symptom Psychology Priming (psychology) |
| Zdroj: | Brain and Language. 72:75-99 |
| ISSN: | 0093-934X |
| Popis: | Two studies were conducted to explore the hypothesis that Broca's and Wernicke's aphasics have deficits arising from the processes involved in activating the lexicon from phonological form. The first study explored whether phonologically similar lexical entries differing only in their initial consonants show “rhyme priming.” Results revealed that Broca's aphasics failed to show facilitation when the target was identical to the prime (i.e. identity priming) and they showed significant inhibition when targets were preceded by rhyming words. Wernicke's aphasics showed a pattern of results similar to that of normal subjects, i.e., identity priming and rhyme priming as well as significantly slower reaction-times in the rhyming condition compared to the identity condition. The second study investigated form-based repetition priming in aphasic patients at a number of intervals including when no other stimuli intervened between repeated stimuli (0 lag) or when 4, 8, or 12 stimuli intervened. Results showed that, unlike old normal subjects who showed repetition priming for both words and nonwords, both Broca's and Wernicke's aphasics showed repetition priming for word targets only. Moreover, in contrast to old normal subjects who showed a greater magnitude of priming at 0 lag for word targets, neither Broca's aphasics or Wernicke's aphasics showed priming at 0 lag. Implications of these findings are considered with respect to the hypotheses that Broca's and Wernicke's aphasics have deficits in the nature of the activation patterns within the lexicon itself and in auditory (working) memory. |
| Databáze: | OpenAIRE |
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