The basis of report-difference superiority in delayed perceptual comparison tasks.
A major role for visual short-term memory (VSTM) is to mediate perceptual comparisons of visual information across successive glances and brief temporal interruptions. Research that has focused on the comparison process has noted a marked tendency for performance to be better when participants are r...
| Publicado en: | Memory & Cognition Vol. 48; no. 5; pp. 856 - 870 |
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| Autores principales: | , , |
| Formato: | Artículo |
| Publicado: |
Springer Nature
Jul2020
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| Materias: | |
| 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=144262124&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 144262124 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 0090502X MEG jtl: Memory & Cognition issn: 0090502X maglogo: N pubinfo: dt: Jul2020 vid: 48 iid: 5 pid: 237 pub: Springer Nature artinfo: ui: 144262124 10.3758/s13421-020-01023-7 ppf: 856 ppct: 14 formats: fmt: – @attributes: type: T – @attributes: type: P size: 769KB tig: atl: The basis of report-difference superiority in delayed perceptual comparison tasks. aug: au: Pilling, Michael Barrett, Douglas J.K. Gellatly, Angus affil: Psychology, Faculty of Health and Life Sciences, Oxford Brookes University, OX3 0BP, Oxford, UK School of Psychology, University of Leicester, Leicester, UK su: Task performance Comparative studies Masking (Psychology) Reflection (Philosophy) Short-term memory Statistics sug: subj: Task performance Comparative studies Masking (Psychology) Reflection (Philosophy) Short-term memory Statistics keyword: Global statistics Location Perceptual comparisons Visual short-term memory Global statistics Location Perceptual comparisons Visual short-term memory ab: A major role for visual short-term memory (VSTM) is to mediate perceptual comparisons of visual information across successive glances and brief temporal interruptions. Research that has focused on the comparison process has noted a marked tendency for performance to be better when participants are required to report a difference between the displays rather than report the absence of a difference (i.e. a sameness). We refer to this performance asymmetry as report-difference superiority (RDS). It has been suggested that RDS reflects the operation of a reflexive mechanism that generates a mismatch signal during the comparison of visual input with information maintained in VSTM. This bottom-up mechanism therefore gives evidence for the presence of a feature change but not for the absence of such a change; consequently, a sameness is harder to detect than a difference between two displays. We test this explanation, and determine whether by itself it is a sufficient explanation of the RDS. In a delayed comparison task we find the RDS effect is most prevalent when items retain the same display locations; however, the effect does persist even when compared item locations were scrambled across memory and test arrays. However, with a conjunction task this scrambling of locations was effective in wholly abolishing the RDS effect. We consider that the RDS effect is a consequence of local comparisons of features, as well as global statistical comparisons. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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