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Reward-priming of location in visual search.

Hickey C, Chelazzi L, Theeuwes J - PLoS ONE (2014)

Bottom Line: Here we report a similar effect of reward on location.Results show that when target selection garnered rewarding outcome attention is subsequently a.) primed to return to the target location, and b.) biased away from the location that was occupied by the salient, task-irrelevant distractor.These results suggest that in addition to priming features, reward acts to guide visual search by priming contextual locations of visual stimuli.

View Article: PubMed Central - PubMed

Affiliation: Department of Cognitive Psychology, VU University, Amsterdam, The Netherlands; Center for Mind/Brain Sciences (CIMeC), University of Trento, Trento, Italy.

ABSTRACT
Existing visual search research has demonstrated that the receipt of reward will be beneficial for subsequent perceptual and attentional processing of features that have characterized targets, but detrimental for processing of features that have characterized irrelevant distractors. Here we report a similar effect of reward on location. Observers completed a visual search task in which they selected a target, ignored a salient distractor, and received random-magnitude reward for correct performance. Results show that when target selection garnered rewarding outcome attention is subsequently a.) primed to return to the target location, and b.) biased away from the location that was occupied by the salient, task-irrelevant distractor. These results suggest that in addition to priming features, reward acts to guide visual search by priming contextual locations of visual stimuli.

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Experimental paradigm.
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pone-0103372-g001: Experimental paradigm.

Mentions: Here we further investigate the effect of reward on location priming in search. Participants completed a compound visual search task described in earlier papers [5], [18]–[19]. While maintaining eye fixation they were required to covertly select a target defined by unique shape and discriminate the orientation of a line segment contained within it. In many trials they had to ignore a distractor defined by unique color and after each correctly performed trial they received 1 or 10 points (see Figure 1). The number of points thus accumulated determined earnings at the conclusion of the experiment. We analyzed performance on a given trial as a function of a.) the magnitude of point reward received in the preceding trial, and b.) whether target and distractor locations were repeated.


Reward-priming of location in visual search.

Hickey C, Chelazzi L, Theeuwes J - PLoS ONE (2014)

Experimental paradigm.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4117518&req=5

pone-0103372-g001: Experimental paradigm.
Mentions: Here we further investigate the effect of reward on location priming in search. Participants completed a compound visual search task described in earlier papers [5], [18]–[19]. While maintaining eye fixation they were required to covertly select a target defined by unique shape and discriminate the orientation of a line segment contained within it. In many trials they had to ignore a distractor defined by unique color and after each correctly performed trial they received 1 or 10 points (see Figure 1). The number of points thus accumulated determined earnings at the conclusion of the experiment. We analyzed performance on a given trial as a function of a.) the magnitude of point reward received in the preceding trial, and b.) whether target and distractor locations were repeated.

Bottom Line: Here we report a similar effect of reward on location.Results show that when target selection garnered rewarding outcome attention is subsequently a.) primed to return to the target location, and b.) biased away from the location that was occupied by the salient, task-irrelevant distractor.These results suggest that in addition to priming features, reward acts to guide visual search by priming contextual locations of visual stimuli.

View Article: PubMed Central - PubMed

Affiliation: Department of Cognitive Psychology, VU University, Amsterdam, The Netherlands; Center for Mind/Brain Sciences (CIMeC), University of Trento, Trento, Italy.

ABSTRACT
Existing visual search research has demonstrated that the receipt of reward will be beneficial for subsequent perceptual and attentional processing of features that have characterized targets, but detrimental for processing of features that have characterized irrelevant distractors. Here we report a similar effect of reward on location. Observers completed a visual search task in which they selected a target, ignored a salient distractor, and received random-magnitude reward for correct performance. Results show that when target selection garnered rewarding outcome attention is subsequently a.) primed to return to the target location, and b.) biased away from the location that was occupied by the salient, task-irrelevant distractor. These results suggest that in addition to priming features, reward acts to guide visual search by priming contextual locations of visual stimuli.

Show MeSH