Measuring Top-Down Influence onto Sub-Lexical Speech Perception

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dc.contributor.advisorFischer-Baum, Simon Jen_US
dc.creatorNoe, Colinen_US
dc.date.accessioned2019-05-17T15:36:37Zen_US
dc.date.available2019-05-17T15:36:37Zen_US
dc.date.created2018-08en_US
dc.date.issued2018-06-21en_US
dc.date.submittedAugust 2018en_US
dc.date.updated2019-05-17T15:36:37Zen_US
dc.description.abstractSpeech perception theories differ on whether the process of sub-lexical speech perception is autonomous or is influenced by contextual knowledge such as semantic or lexical context. A better understanding of sub-lexical speech perception would be useful for building cognitive models of speech perception and clinically, in understanding speech perception deficits after neurological injury. We employ the N1 EEG-ERP waveform to measure the sub-lexical processes involved in stop-consonant voicing categorization and test whether voicing encoding is altered by lexical status (e.g. /d/-/t/ in dape-tape versus date-tate). This project improves on previous work investigating sub-lexical perception (e.g. Ganong, 1980) by including an online measure of sub-lexical encoding. We demonstrate effects of lexical context on N1 encoding, indicating interaction of lexical and sub-lexical information. This finding supports online feedback accounts of speech perception. Practically, it also confirms the N1-EEG is a useful candidate for measuring deficits in speech perception in neurologically damaged populations.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationNoe, Colin. "Measuring Top-Down Influence onto Sub-Lexical Speech Perception." (2018) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/105791">https://hdl.handle.net/1911/105791</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/105791en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectSpeech Perceptionen_US
dc.subjectN1en_US
dc.subjectEEGen_US
dc.subjectTop-Down Influenceen_US
dc.titleMeasuring Top-Down Influence onto Sub-Lexical Speech Perceptionen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentPsychologyen_US
thesis.degree.disciplineSocial Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Artsen_US
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