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Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition
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Emotional influences on perception and working memory.

Juyoen Hur1, Alexandru D Iordan2, Florin Dolcos1,3,4

  • 1a Department of Psychology , University of Illinois at Urbana-Champaign , Champaign , IL , USA.

Cognition & Emotion
|September 30, 2016
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Summary

Emotion

Keywords:
Emotionattentional focusbiased competition modelcognitioncongruence interference effect

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Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • The precise mechanisms by which emotion influences cognitive functions like perception and working memory (WM) are not fully understood.
  • Existing research shows varied effects of emotion on cognition, necessitating further investigation into the underlying processes.

Purpose of the Study:

  • To investigate the mechanisms of emotion's influence on perception and working memory (WM).
  • To examine the role of attentional focus and the interplay of internal representations in modulating these effects.

Main Methods:

  • Utilized modified 0-back and 2-back tasks to assess perception and WM, respectively.
  • Manipulated attentional focus and emotional valence of stimuli to observe effects on task performance.

Main Results:

  • Attentional focus modulated emotion's impact on perception; performance improved when emotion was task-relevant and worsened when irrelevant.
  • The effect of attentional focus on perception diminished under high working memory load.
  • Emotion's influence on WM was dependent on the emotional congruence between existing and new information, with matching emotions impairing performance.
  • Attentional focus did not directly modulate emotion's effect on WM.

Conclusions:

  • Emotion's influence on perception and WM is mediated by attentional focus and the dynamic interplay of internal representations.
  • A proposed model suggests competition between bottom-up and top-down processing for limited cognitive resources underlies these emotion-cognition interactions.