Visual Search for Dimensionally Redundant Pop-Out Targets: Parallel-Coactive Processing of Dimensions Is Location Specific.
Three visual search experiments investigated redundancy gains for single and dual odd–one–out feature targets that differed from distractors in orientation, color, or both. In Experiment 1, redundant-target displays contained (a) a single target defined in 2 dimensions, (b) dual targets each define...
| Publicado en: | Journal of Experimental Psychology. Human Perception & Performance Vol. 28; no. 6; pp. 1303 - 1323 |
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| Autores principales: | , , |
| Formato: | Artículo |
| Publicado: |
American Psychological Association
December 2002
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=513159465&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 513159465 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00961523 EPH jtl: Journal of Experimental Psychology. Human Perception & Performance issn: 00961523 maglogo: N pubinfo: dt: December 2002 vid: 28 iid: 6 pid: 34 pub: American Psychological Association artinfo: ui: 513159465 10.1037/0096-1523.28.6.1303 ppf: 1303 ppct: 20 formats: tig: atl: Visual Search for Dimensionally Redundant Pop-Out Targets: Parallel-Coactive Processing of Dimensions Is Location Specific. aug: au: Krummenacher, Joseph Müller, Hermann J. Heller, Dieter su: Dimensions Tracking & trailing Attention Reaction time sug: subj: Dimensions Tracking & trailing Attention Reaction time ab: Three visual search experiments investigated redundancy gains for single and dual odd–one–out feature targets that differed from distractors in orientation, color, or both. In Experiment 1, redundant-target displays contained (a) a single target defined in 2 dimensions, (b) dual targets each defined in a different dimension, or (c) dual targets both defined in the same dimension. The redundancy gains, relative to single nonredundant targets, decreased from the first condition on, with violations of J. Miller's (1982) race model inequality (RMI) manifested only in the first 2 conditions. Experiment 2 systematically varied the spatial separation between dual targets each defined in a different dimension. Violations of the RMI were evident only when the 2 targets occupied nearby locations. Experiment 3 provided evidence of RMI violations by dimensionally redundant targets at both precued (likely) and noncued (unlikely) display locations. Taken together, these results suggest that there is coactivation of a common mechanism by target signals in different dimensions (not by signals in the same dimension), that the coactivation effects are spatially specific, and that the coactivated mechanisms are located at a preattentive, perceptual stage of processing. Reprinted by permission of the publisher. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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