SAFETYLIT WEEKLY UPDATE

We compile citations and summaries of about 400 new articles every week.
RSS Feed

HELP: Tutorials | FAQ
CONTACT US: Contact info

Search Results

Journal Article

Citation

Liesefeld HR, Liesefeld AM, Müller HJ, Rangelov D. Atten. Percept. Psychophys. 2017; 79(7): 2190-2201.

Affiliation

Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia. d.rangelov@uq.edu.au.

Copyright

(Copyright © 2017, Holtzbrinck Springer Nature Publishing Group)

DOI

10.3758/s13414-017-1383-9

PMID

28718177

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.


Language: en

Keywords

Co-activation; Intertrial-sequence effects; Priority map; Race-model inequality (RMI); Visual short-term memory

NEW SEARCH


All SafetyLit records are available for automatic download to Zotero & Mendeley
Print