Liesefeld, H.R. and Liesefeld, A.M. and Muller, Hermann J. and Rangelov, D. (2017) Saliency maps for finding changes in visual scenes? Attention, Perception, & Psychophysics 79 (7), pp. 2190-2201. ISSN 1943-3921.
Abstract
Sudden changes in the environment reliably summon attention. This rapid change detection appears to operate in a similar fashion as pop-out in visual search, the phenomenon that very salient stimuli are directly attended, independently of the number of distracting objects. Pop-out is usually explained by the workings of saliency maps, i.e., map-like representations that code for the conspicuity at each location of the visual field. While past research emphasized similarities between pop-out search and change detection, our study highlights differences between the saliency computations in the two tasks: in contrast to pop-out search, saliency computation in change detection (i) operates independently across different stimulus properties (e.g., color and orientation), and (ii) is little influenced by trial history. These deviations from pop-out search are not due to idiosyncrasies of the stimuli or task design, as evidenced by a replication of standard findings in a comparable visual-search design. To explain these results, we outline a model of change detection involving the computation of feature-difference maps, which explains the known similarities and differences with visual search.
Metadata
| Item Type: | Article |
|---|---|
| Keyword(s) / Subject(s): | Visual short-term memory, Race-model inequality (RMI), Priority map, Co-activation, Intertrial-sequence effects |
| School: | Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences |
| Depositing User: | Administrator |
| Date Deposited: | 18 Aug 2017 09:13 |
| Last Modified: | 02 Aug 2023 17:34 |
| URI: | https://eprints.bbk.ac.uk/id/eprint/19434 |
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