Analysis of patterns of neural activity in response to auditory stimuli
dc.contributor.author | Hambrook, Dillon A. | |
dc.contributor.author | University of Lethbridge. Faculty of Arts and Science | |
dc.contributor.supervisor | Tata, Matthew S. | |
dc.contributor.supervisor | Luczak, Artur | |
dc.date.accessioned | 2014-10-29T20:07:07Z | |
dc.date.available | 2014-10-29T20:07:07Z | |
dc.date.issued | 2013 | |
dc.degree.level | Masters | en_US |
dc.degree.level | Masters | |
dc.description | vi, 49 leaves ; 29 cm | en_US |
dc.description.abstract | It is usually easy to understand speech, but when several people are talking at once it becomes difficult. The brain must select one speech stream and ignore distracting streams. This thesis tested a theory about the neural and computational mechanisms of attentional selection. The theory is that oscillating signals in brain networks phase-lock with amplitude fluctuations in speech. By doing this, brain-wide networks acquire information from the selected speech, but ignore other speech signals on the basis of their non-preferred dynamics. Two predictions were supported: first, attentional selection boosted the power of neuroelectric signals that were phase-locked with attended speech, but not ignored speech. Second, this phase selectivity was associated with better perception for the attended speech. We also describe a novel analysis of neuroelectric responses in complex auditory scenes, and suggest a new model of auditory distraction that is consistent with some unexpected results. | en_US |
dc.identifier.uri | https://hdl.handle.net/10133/3579 | |
dc.language.iso | en_CA | en_US |
dc.proquest.subject | 0317 | en_US |
dc.proquestyes | Yes | en_US |
dc.publisher | Lethbridge, Alta. : University of Lethbridge, Dept. of Neuroscience, 2013 | en_US |
dc.publisher.department | Department of Neuroscience | en_US |
dc.publisher.faculty | Arts and Science | en_US |
dc.relation.ispartofseries | Thesis (University of Lethbridge. Faculty of Arts and Science) | en_US |
dc.subject | Selective listening | en_US |
dc.subject | Speech perception | en_US |
dc.subject | Brain | en_US |
dc.subject | Neural activity | en_US |
dc.subject | Auditory stimuli | en_US |
dc.subject | Dissertations, Academic | en_US |
dc.subject | Multiple speech streams | |
dc.subject | Neural oscillation | |
dc.subject | Speech perception -- Research | |
dc.subject | Auditory perception | |
dc.subject | Selectivity (Psychology) | |
dc.subject | Human information processing | |
dc.title | Analysis of patterns of neural activity in response to auditory stimuli | en_US |
dc.type | Thesis | en_US |