{"id":{"repo_id":"lethbridge","oai_identifier":"oai:opus.uleth.ca:10133/3579"},"canonical_url":"https://search.dev.ndltd.org/etd/lethbridge/oai:opus.uleth.ca:10133/3579","repository":{"repo_id":"lethbridge","name":"University of Lethbridge","base_url":"https://opus.uleth.ca/server/oai/request"},"display":{"title":"Analysis of patterns of neural activity in response to auditory stimuli","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.","abstract_html":"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.","abstract_has_math":false,"creators":["Hambrook, Dillon A.","University of Lethbridge. Faculty of Arts and Science"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2013,"date_issued":"2013","date_published":"2013","updated_at":"2026-07-27T20:02:26Z","subjects":["Selective listening","Speech perception","Brain","Neural activity","Auditory stimuli","Dissertations, Academic","Multiple speech streams","Neural oscillation","Speech perception -- Research","Auditory perception","Selectivity (Psychology)","Human information processing"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["hdl:10133/3579"],"render_values":[{"text":"hdl:10133/3579","href":null,"code":true}]}]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.issued","label":"Date","values":["2013"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Selective listening","Speech perception","Brain","Neural activity","Auditory stimuli","Dissertations, Academic","Multiple speech streams","Neural oscillation","Speech perception -- Research","Auditory perception","Selectivity (Psychology)","Human information processing"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["hdl:10133/3579"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.other","label":"Dc Description Other","values":["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."]},{"key":"dc:title","label":"Title","values":["Analysis of patterns of neural activity in response to auditory stimuli"]}]}],"canonical_facts":{"dc:date.issued":["2013"],"dc:description.other":["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."],"dc:identifier":["hdl:10133/3579"],"dc:subject":["Selective listening","Speech perception","Brain","Neural activity","Auditory stimuli","Dissertations, Academic","Multiple speech streams","Neural oscillation","Speech perception -- Research","Auditory perception","Selectivity (Psychology)","Human information processing"],"dc:title":["Analysis of patterns of neural activity in response to auditory stimuli"],"dc:type":["Thesis"]},"updated_at":"2026-07-27T20:02:26Z"}