An electrophysiological investigation of discourse coherence in healthy adults
| Autor: | Yael Neumann, Yan H. Yu, April A. Benasich, Valerie L. Shafer, Baila Epstein |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Adult
Male Linguistics and Language medicine.medical_specialty Traumatic brain injury media_common.quotation_subject Population Nonsense Brain damage Audiology Language and Linguistics Developmental psychology Speech and Hearing Event-related potential Phonetics Reference Values Aphasia medicine Reaction Time Humans education Dominance Cerebral Evoked Potentials media_common education.field_of_study Brain Mapping Verbal Behavior Brain Electroencephalography Signal Processing Computer-Assisted Coherence (statistics) medicine.disease Electrophysiology Speech Perception Female medicine.symptom Psychology Comprehension |
| Zdroj: | Clinical linguisticsphonetics. 28(11) |
| ISSN: | 1464-5076 |
| Popis: | This study used event-related potentials (ERPs) to investigate discourse-coherence processing. Because there are scant data on ERP indices of discourse coherence in typical adults, it is important to study a non-clinical population before examining clinical populations. Twelve adults listened to a story with sentences in a coherent versus incoherent order. Sequences of nonsense syllables served as a control. ERPs in the 200–400 ms time window, reflecting phonological and lexical processing, and in the 600–900 ms time window, reflecting later discourse processing for integration, were investigated. Results revealed a right anterior and posterior positivity that was greater for coherent than for incoherent discourse during the 600–900 ms time window. These findings point to an index of discourse coherence and further suggest that ERPs can be used as a clinical tool to study discourse-processing disorders in populations with brain damage, such as aphasia and traumatic brain injury. |
| Databáze: | OpenAIRE |
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