Effects of nonlinguistic auditory variations on lexical processing in Broca’s aphasics
| Autor: | Sheila E. Blumstein, Audrey K. Kittredge, Lissa Davis |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Male
Linguistics and Language medicine.medical_specialty Speech perception Cognitive Neuroscience Experimental and Cognitive Psychology Neuropsychological Tests Audiology Lexicon Severity of Illness Index Vocabulary Language and Linguistics Speech and Hearing Communication disorder Aphasia Reaction Time otorhinolaryngologic diseases medicine Lexical decision task Humans Language disorder Aged computer.programming_language Aged 80 and over Aphasia Broca Communication business.industry Linguistics Middle Aged medicine.disease Word recognition Speech Perception Female Lexico medicine.symptom business Psychology computer |
| Zdroj: | Brain and Language. 97:25-40 |
| ISSN: | 0093-934X |
| DOI: | 10.1016/j.bandl.2005.07.012 |
| Popis: | In a series of experiments, the effect of white noise distortion and talker variation on lexical access in normal and Broca's aphasic participants was examined using an auditory lexical decision paradigm. Masking the prime stimulus in white noise resulted in reduced semantic priming for both groups, indicating that lexical access is degraded by nonlinguistic white noise distortion. However, talker variation within a prime-target pair had no effect upon the performance of either the normal or aphasic individuals. The absence of a talker variation effect suggests that voice-specific information is not encoded in the lexical representations of words. The normal performance of Broca's aphasics under conditions of both white noise and talker variation supports the view that these patients have a lexical processing impairment rather than a more generalized language deficit characterized by limited computational resources. |
| Databáze: | OpenAIRE |
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