Stimulus and cognitive factors in cortical entrainment to speech

Simple item page
dc.contributor.authorHambrook, Dillon A.
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorTata, Matthew S.
dc.date.accessioned2018-11-28T16:31:36Z
dc.date.available2018-11-28T16:31:36Z
dc.date.issued2018
dc.degree.levelPh.Den_US
dc.description.abstractUnderstanding speech is a difficult computational problem yet the human brain does it with ease. Entrainment of oscillatory neural activity to acoustic features of speech is an example of dynamic coupling between cortical activity and sensory inputs. The phenomenon may be a bottom-up, sensory-driven neurophysiological mechanism that supports speech processing. However, cognitive top-down factors such as linguistic knowledge and attentional focus affect speech perception, especially in challenging real-world environments. It is unclear how these top-down influences affect cortical entrainment to speech. We used electroencephalography to measure cortical entrainment to speech under conditions of acoustic and cognitive interference. By manipulating the bottom-up, sensory features in the acoustic scene we found evidence of top-down influences of attentional selection and linguistic processing on speech-entrained activity.en_US
dc.embargoNoen_US
dc.identifier.urihttps://hdl.handle.net/10133/5252
dc.language.isoen_USen_US
dc.proquest.subject0317en_US
dc.proquest.subject0633en_US
dc.proquest.subject0623en_US
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta. : Universtiy of Lethbridge, Department of Neuroscienceen_US
dc.publisher.departmentDepartment of Neuroscienceen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectSpeech perceptionen_US
dc.subjectHearingen_US
dc.subjectAuditory perceptionen_US
dc.subjectSignal processingen_US
dc.subjectNeurolinguisticsen_US
dc.subjectHuman information processingen_US
dc.subjectAuditory selective attentionen_US
dc.subjectacoustic envelopeen_US
dc.subjectcomplex acoustic scenesen_US
dc.subjectcortical entrainmenten_US
dc.subjectspeech tracking responseen_US
dc.subjecttemporal envelopeen_US
dc.subjectDissertations, Academicen_US
dc.titleStimulus and cognitive factors in cortical entrainment to speechen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
HAMBROOK_DILLON_PHD_2018.pdf
Size:
2 MB
Format:
Adobe Portable Document Format
Description:
Thesis document
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
3.25 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Arts and Science, Faculty of
University of Lethbridge Theses