{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/117551"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/117551","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Audiovisual dynamics in the alpha band: An examination of oscillations induced and intrinsic","abstract":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01","abstract_html":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01","abstract_has_math":false,"creators":["Cunningham, Emily"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Psychology","degree_department":null,"school":null,"contributors":["Beck, Diane","Wang, Ranxiao F.","Hummel, John E.","Lleras, Alejandro","Gratton, Gabriele"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2022,"date_issued":"2022-12","date_published":"2022-12","updated_at":"2026-07-22T22:24:56Z","subjects":["Oscillation","Alpha","Entrainment","Audiovisual"],"languages":["en","eng"],"rights":["Copyright 2022 Emily Cunningham"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/117551","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Beck, Diane","Wang, Ranxiao F.","Hummel, John E.","Lleras, Alejandro","Gratton, Gabriele"]},{"key":"dc:creator","label":"Author","values":["Cunningham, Emily"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2022-12","2022-11-14"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Psychology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Oscillation","Alpha","Entrainment","Audiovisual"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2022 Emily Cunningham"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/117551"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01","The student, Emily Cunningham, accepted the attached license on 2022-11-14 at 10:23.","The student, Emily Cunningham, submitted this Dissertation for approval on 2022-11-14 at 10:37.","This Dissertation was approved for publication on 2022-11-14 at 16:35.","DSpace SAF Submission Ingestion Package generated from Vireo submission #18573 on 2023-04-12 at 11:34:54","Posterior alpha rhythms are a particularly prominent feature of scalp-recorded EEG activity. Historically, the circuits that give rise to these 8-12 Hz patterns have largely been studied with respect to their relation to vision. Not only do these signals respond characteristically to visual stimulation and exhibit coincident effects associated with visual stimulus timing relative to ongoing activity—links have also been drawn between alpha circuit activity and visual selective attention. However, the dominance of visual characterizations of the alpha rhythm belies the fact that alpha rhythmic activity appears to emerge with similar dynamics across sensory modalities. As the discussion of alpha circuits and their relation to attention becomes increasingly cross-modal, questions begin to emerge about the degree to which previously-identified visual effects can be extrapolated across and between sensory modalities. Here, two such questions are examined. The series of experiments described in Chapter 2 evaluate whether the visual alpha signal, which appears to respond robustly to photic stimulation, can be manipulated by a cross-modal, auditory rhythm. These experiments provide behavioral evidence that visual alpha activity may be robust to extramodal (auditory) interference, although the effects of a visual rhythmic drive may be enhanced by the addition of auditory information. In Chapter 3, the focus is shifted from induced to intrinsic activity. Rather than examining the effects of rhythmic stimulation on performance, this chapter examines the relation between ongoing shifts in the alpha signal and detection of near-threshold stimuli when attention is directed to audition relative to vision. The aim of this work is to provide a detailed characterization of the relation between posterior alpha-band activity and performance as a function of attended modality. The results suggest that changes in the posterior alpha signal when attention is directed to audition relative to vision do not influence responses to auditory stimuli, and also provide evidence that previously identified changes in the alpha signal linked to threshold visual detection may be more broadband than oscillatory."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Audiovisual dynamics in the alpha band: An examination of oscillations induced and intrinsic"]}]}],"canonical_facts":{"dc:contributor":["Beck, Diane","Wang, Ranxiao F.","Hummel, John E.","Lleras, Alejandro","Gratton, Gabriele"],"dc:creator":["Cunningham, Emily"],"dc:date":["2022-12","2022-11-14"],"dc:description":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01","The student, Emily Cunningham, accepted the attached license on 2022-11-14 at 10:23.","The student, Emily Cunningham, submitted this Dissertation for approval on 2022-11-14 at 10:37.","This Dissertation was approved for publication on 2022-11-14 at 16:35.","DSpace SAF Submission Ingestion Package generated from Vireo submission #18573 on 2023-04-12 at 11:34:54","Posterior alpha rhythms are a particularly prominent feature of scalp-recorded EEG activity. Historically, the circuits that give rise to these 8-12 Hz patterns have largely been studied with respect to their relation to vision. Not only do these signals respond characteristically to visual stimulation and exhibit coincident effects associated with visual stimulus timing relative to ongoing activity—links have also been drawn between alpha circuit activity and visual selective attention. However, the dominance of visual characterizations of the alpha rhythm belies the fact that alpha rhythmic activity appears to emerge with similar dynamics across sensory modalities. As the discussion of alpha circuits and their relation to attention becomes increasingly cross-modal, questions begin to emerge about the degree to which previously-identified visual effects can be extrapolated across and between sensory modalities. Here, two such questions are examined. The series of experiments described in Chapter 2 evaluate whether the visual alpha signal, which appears to respond robustly to photic stimulation, can be manipulated by a cross-modal, auditory rhythm. These experiments provide behavioral evidence that visual alpha activity may be robust to extramodal (auditory) interference, although the effects of a visual rhythmic drive may be enhanced by the addition of auditory information. In Chapter 3, the focus is shifted from induced to intrinsic activity. Rather than examining the effects of rhythmic stimulation on performance, this chapter examines the relation between ongoing shifts in the alpha signal and detection of near-threshold stimuli when attention is directed to audition relative to vision. The aim of this work is to provide a detailed characterization of the relation between posterior alpha-band activity and performance as a function of attended modality. The results suggest that changes in the posterior alpha signal when attention is directed to audition relative to vision do not influence responses to auditory stimuli, and also provide evidence that previously identified changes in the alpha signal linked to threshold visual detection may be more broadband than oscillatory."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/117551"],"dc:language":["en","eng"],"dc:rights":["Copyright 2022 Emily Cunningham"],"dc:subject":["Oscillation","Alpha","Entrainment","Audiovisual"],"dc:title":["Audiovisual dynamics in the alpha band: An examination of oscillations induced and intrinsic"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Psychology"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:56Z"}