Superior temporal activation as a function of linguistic knowledge: Insights from deaf native signers who speechread
| Autor: | Cheryl M. Capek, Mairéad MacSweeney, Michael Brammer, Ruth Campbell, Bencie Woll, Dafydd Waters, Anthony S. David, Philip McGuire |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Linguistics and Language
Hearing loss Short Communication Cognitive Neuroscience Lipreading Neuroimaging Experimental and Cognitive Psychology Sign language Deafness Auditory cortex 050105 experimental psychology Language and Linguistics Temporal lobe Sign Language 03 medical and health sciences Speech and Hearing 0302 clinical medicine Temporal cortex medicine Humans 0501 psychology and cognitive sciences Language processing Speechreading Brain Mapping 05 social sciences fMRI Linguistics Temporal Lobe language.human_language Semantics Signed language British Sign Language FMRI language medicine.symptom Comprehension Language Experience Approach Psychology 030217 neurology & neurosurgery |
| Zdroj: | Capek, C M, Woll, B, MacSweeney, M, Waters, D, McGuire, P K, David, A S, Brammer, M J & Campbell, R 2010, ' Superior temporal activation as a function of linguistic knowledge: Insights from deaf native signers who speechread ', Brain and Language, vol. 112, no. 2, pp. 129-134 . https://doi.org/10.1016/j.bandl.2009.10.004 Brain and Language |
| Popis: | Studies of spoken and signed language processing reliably show involvement of the posterior superior temporal cortex. This region is also reliably activated by observation of meaningless oral and manual actions. In this study we directly compared the extent to which activation in posterior superior temporal cortex is modulated by linguistic knowledge irrespective of differences in language form. We used a novel cross-linguistic approach in two groups of volunteers who differed in their language experience. Using fMRI, we compared deaf native signers of British Sign Language (BSL), who were also proficient speechreaders of English (i.e., two languages) with hearing people who could speechread English, but knew no BSL (i.e., one language). Both groups were presented with BSL signs and silently spoken English words, and were required to respond to a signed or spoken target. The interaction of group and condition revealed activation in the superior temporal cortex, bilaterally, focused in the posterior superior temporal gyri (pSTG, BA 42/22). In hearing people, these regions were activated more by speech than by sign, but in deaf respondents they showed similar levels of activation for both language forms - suggesting that posterior superior temporal regions are highly sensitive to language knowledge irrespective of the mode of delivery of the stimulus material. © 2009 Elsevier Inc. |
| Databáze: | OpenAIRE |
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