August 2014
Volume 14, Issue 10
Free
Vision Sciences Society Annual Meeting Abstract  |   August 2014
Emotional faces in visual working memory are not easily forgotten: Distractor effects on memory-guided visual search
Author Affiliations
  • Risa Sawaki
    University of Birmingham, UK
  • Jane Raymond
    University of Birmingham, UK
Journal of Vision August 2014, Vol.14, 37. doi:10.1167/14.10.37
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      Risa Sawaki, Jane Raymond; Emotional faces in visual working memory are not easily forgotten: Distractor effects on memory-guided visual search. Journal of Vision 2014;14(10):37. doi: 10.1167/14.10.37.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Visual search is typically guided by goals that are represented in working memory. Here we ask whether recently encoded but to-be-forgotten emotional information can also bias visual search. Although it has been demonstrated that angry faces are better maintained in visual working memory than happy faces, it remains unknown whether they are more difficult to forget. The present study investigated this issue by monitoring eye movements while participants performed a memory-guided visual search task. In the task, participants first encoded and then maintained two faces (different identities with different emotional expressions: happy, angry, or neutral) in working memory. Then, part way through a 3 second retention interval, a cue was presented to indicate which face to continuously maintain as target and which to forget. Finally, participants searched for the target face among an array of six faces comprised of each of the previously presented identities expressing each possible emotion. We found that fixations on the search array item matching the to-be forgotten (TBF) distractor (TBF identity plus TBF emotion) were infrequent, short in duration, and did not depend on the TBF emotion (angry, happy). However, fixations on the distractor face that combined target identity with the TBF emotion were significantly longer when the TBF emotion was angry versus happy. This finding suggests that representation of an angry expression is difficult to suppress from visual working memory and that such information can subsequently influence visual search.

Meeting abstract presented at VSS 2014

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