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oai:www.ideals.illinois.edu:2142/22543 2023-07-10 col_2142_5131 col_2142_11614 com_2142_5130 com_2142_11613 com_2142_8903

Eriksen, Charles W. Fournier, Lisa Renee 2011-05-07T13:43:14Z 2011-05-07T13:43:14Z 10000-01-01 1993 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). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9329030.pdf: 4308550 bytes, checksum: 9fea6c3ba7a5ffa24fea11ed2ce1590b (MD5) Previous issue date: 1993 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:58:20Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:27:25-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission ETDs are only available to UIUC Users without author permission U of I Only AAI9329030 (UMI)AAI9329030 http://hdl.handle.net/2142/22543 eng Copyright 1993 Fournier, Lisa Renee Psychology, Behavioral Psychology, Experimental Selective attentional delays and attentional capture among multiple visual onset elements text Psychology Psychology University of Illinois at Urbana-Champaign Dissertation Ph.D.