Can intertrial effects of features and dimensions be explained by a single theory?

Becker, Stefanie I. (2008) Can intertrial effects of features and dimensions be explained by a single theory?. Journal of Experimental Psychology: Human Perception and Performance, 34 6: 1417-1440. doi:10.1037/a0011386


Author Becker, Stefanie I.
Title Can intertrial effects of features and dimensions be explained by a single theory?
Journal name Journal of Experimental Psychology: Human Perception and Performance   Check publisher's open access policy
ISSN 0096-1523
1939-1277
Publication date 2008-12
Sub-type Article (original research)
DOI 10.1037/a0011386
Volume 34
Issue 6
Start page 1417
End page 1440
Total pages 24
Place of publication Washington, DC, United States
Publisher American Psychological Association
Language eng
Abstract This study investigated feature- and dimension-based intertrial effects in visual search for a pop-out target. The 2 prominent theories explaining intertrial effects, priming of pop-out and dimension weighting, both assume that repeating the target from the previous trial facilitates attention shifts to the target, whereas changing the target leads to attentional switch costs. In contrast, the results from the present study indicate that intertrial effects from changing features and dimensions involve different underlying mechanisms: Eye movement recordings showed that feature priming reliably modulates the speed of visually selecting the target, whereas changing the target dimension interferes only with processes after selection of the search target. Further experiments with a size and orientation singleton target showed that feature priming does not consist in carryover effects of target activation or nontarget inhibition, contrary to standard assumptions in visual search. Instead, priming effects critically depended on whether a coarse relation between target and nontarget features (e.g., smaller or larger) was repeated or reversed across trials. These results suggest the need to modify current models of priming in visual search.
Keyword Priming of pop-out
Visual search tasks
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Psychology Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 33 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 34 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Thu, 03 Sep 2009, 09:14:02 EST by Mr Andrew Martlew on behalf of School of Psychology