Abstract
The present study investigates the representations(s) underlying positional priming of visual pop-out' search (Maljkodc and Nakayama, 1996). Three search items (one target and two distractors) were presented at different locations, in invariant (Experiment 1) or random (Experiment 2) cross-trial sequences. By these manipulations it was possible to disentangle retinotopic, spatiotopic, and object-centered priming representations. Two forms of priming were tested: target location facilitation (i.e.,faster reaction times - RTswhen the trial n target is presented at a trial n-1 target relative to n-1 blank location) and distractor location inhibition (i.e.,slower RTs for n targets presented at n-1 distractor compared to n-1 blank locations). It was found that target locations were coded in positional short-term memory with reference to both spatiotopic and object-centered representations (Experiment 1 vs. 2). In contrast, distractor locations were maintained in an object-centered reference frame (Experiments 1 and 2). We put forward the idea that the uncertainty induced by the experiment manipulation (predictable versus random cross-trial item displacements) modulates the transition from object- to space-based representations in cross-trial memory for target positions.
Item Type: | Journal article |
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Faculties: | Psychology and Education Science > Department Psychology |
Subjects: | 100 Philosophy and Psychology > 150 Psychology |
URN: | urn:nbn:de:bvb:19-epub-34220-7 |
ISSN: | 1664-1078 |
Language: | English |
Item ID: | 34220 |
Date Deposited: | 15. Feb 2017, 16:03 |
Last Modified: | 28. Dec 2021, 14:39 |