The time course of speaker-specific language processing
| Autor: | Thomas C. Gunter, Leon O. H. Kroczek |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Cognitive Neuroscience
Speech recognition Experimental and Cognitive Psychology Electroencephalography 050105 experimental psychology Session (web analytics) Sentence processing 03 medical and health sciences 0302 clinical medicine medicine Humans 0501 psychology and cognitive sciences Evoked Potentials Language medicine.diagnostic_test 05 social sciences Search engine indexing Syntax Neuropsychology and Physiological Psychology Time course Speech Perception Affect (linguistics) Psychology 030217 neurology & neurosurgery Sentence |
| Zdroj: | Cortex. 141:311-321 |
| ISSN: | 0010-9452 |
| Popis: | Listeners are sensitive to a speaker's individual language use and generate expectations for particular speakers. It is unclear, however, how such expectations affect online language processing. In the present EEG study, we presented thirty-two participants with auditory sentence stimuli of two speakers. Speakers differed in their use of two particular syntactic structures, easy subject-initial SOV structures and more difficult object-initial OSV structures. One speaker, the SOV-Speaker, had a high proportion of SOV sentences (75%) and a low proportion of OSV sentences (25%), and vice-versa for the OSV-Speaker. Participants were exposed to the speakers' individual language use in a training session followed by a test session on the consecutive day. ERP-results show that early stages of sentence processing are driven by syntactic processing only and are unaffected by speaker-specific expectations. In a late stage, however, an interaction between speaker and syntax information was observed. For the SOV-Speaker condition, the classical P600-effect reflected the effort of processing difficult and unexpected sentence structures. For the OSV-Speaker condition, both structures elicited different responses on frontal electrodes, possibly indexing effort to switch from a local speaker model to a global model of language use. Overall, the study identifies distinct neural mechanisms related to speaker-specific expectations. |
| Databáze: | OpenAIRE |
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