{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/22543"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/22543","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Selective attentional delays and attentional capture among multiple visual onset elements","abstract":"Discrimination and detection responses to a single stimulus presented simultaneously with noise stimuli are slower and less accurate compared to when a single stimulus is presented alone. This occurs even though the location of the relevant stimulus (target) is known or visually indicated with stimuli onset. Results showed noise elements delay both focal attending and automatic processing of a target. Furthermore, visually indicating the target location before target-noise onset (precuing) reduces and can eliminate target processing delays. Processing delays were not due to response competition, random attentional capture by noise, or difficulties in locating the target. It is suggested that simultaneous onset stimuli are perceived initially as a single object and delays in processing a single stimulus are due to difficulties in perceptually segregating this stimulus from noise. Precuing is assumed to facilitate this segregation process.","abstract_html":"Discrimination and detection responses to a single stimulus presented simultaneously with noise stimuli are slower and less accurate compared to when a single stimulus is presented alone. This occurs even though the location of the relevant stimulus (target) is known or visually indicated with stimuli onset. Results showed noise elements delay both focal attending and automatic processing of a target. Furthermore, visually indicating the target location before target-noise onset (precuing) reduces and can eliminate target processing delays. Processing delays were not due to response competition, random attentional capture by noise, or difficulties in locating the target. It is suggested that simultaneous onset stimuli are perceived initially as a single object and delays in processing a single stimulus are due to difficulties in perceptually segregating this stimulus from noise. Precuing is assumed to facilitate this segregation process.","abstract_has_math":false,"creators":["Fournier, Lisa Renee"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Psychology","degree_department":null,"school":null,"contributors":["Eriksen, Charles W."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-07T13:43:14Z","date_published":"2011-05-07T13:43:14Z","updated_at":"2026-07-22T22:25:20Z","subjects":["Psychology, Behavioral","Psychology, Experimental"],"languages":["eng"],"rights":["Copyright 1993 Fournier, Lisa Renee"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9329030","(UMI)AAI9329030"],"render_values":[{"text":"AAI9329030","href":null,"code":true},{"text":"(UMI)AAI9329030","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/22543","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Eriksen, Charles W."]},{"key":"dc:creator","label":"Author","values":["Fournier, Lisa Renee"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-07T13:43:14Z","10000-01-01","1993"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"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":["Psychology, Behavioral","Psychology, Experimental"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 1993 Fournier, Lisa Renee"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9329030","(UMI)AAI9329030","http://hdl.handle.net/2142/22543"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Discrimination and detection responses to a single stimulus presented simultaneously with noise stimuli are slower and less accurate compared to when a single stimulus is presented alone. This occurs even though the location of the relevant stimulus (target) is known or visually indicated with stimuli onset. Results showed noise elements delay both focal attending and automatic processing of a target. Furthermore, visually indicating the target location before target-noise onset (precuing) reduces and can eliminate target processing delays. Processing delays were not due to response competition, random attentional capture by noise, or difficulties in locating the target. It is suggested that simultaneous onset stimuli are perceived initially as a single object and delays in processing a single stimulus are due to difficulties in perceptually segregating this stimulus from noise. Precuing is assumed to facilitate this segregation process.","Made available in DSpace on 2011-05-07T13:43:14Z (GMT). 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This occurs even though the location of the relevant stimulus (target) is known or visually indicated with stimuli onset. Results showed noise elements delay both focal attending and automatic processing of a target. Furthermore, visually indicating the target location before target-noise onset (precuing) reduces and can eliminate target processing delays. Processing delays were not due to response competition, random attentional capture by noise, or difficulties in locating the target. It is suggested that simultaneous onset stimuli are perceived initially as a single object and delays in processing a single stimulus are due to difficulties in perceptually segregating this stimulus from noise. Precuing is assumed to facilitate this segregation process.","Made available in DSpace on 2011-05-07T13:43:14Z (GMT). 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