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Emotion-induced attentional bias: does it modulate the spatial Simon effect?

Mei-Ching Lien1, Robert W Proctor2, Jessica Hinkson1

  • 1School of Psychological Science, Oregon State University, Corvallis, OR, USA.

Cognition & Emotion
|June 27, 2020
PubMed
Summary
This summary is machine-generated.

Positivity bias enhances the spatial Simon effect for happy faces, but this effect is object-specific, not location-based. This suggests attentional bias is tied to particular items, not where they appear.

Keywords:
Emotion-induced Simon effectSimon taskattentional biasemotional valence

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Area of Science:

  • Cognitive Psychology
  • Experimental Psychology
  • Human Attention Research

Background:

  • Previous research indicated that positive emotional valence, like happy faces, amplifies spatial Simon effects.
  • An unexpected finding was that this amplification extended to non-valenced objects associated with happy faces.
  • This raised the question of whether the enhanced Simon effect is driven by stimulus location or object properties.

Purpose of the Study:

  • To investigate whether the enhanced spatial Simon effect is linked to stimulus location or object identity.
  • To determine if attentional bias is object-based or location-based in the context of emotional stimuli.

Main Methods:

  • Participants performed a Simon task, pressing left/right keys in response to stimuli (faces or arrows).
  • Stimuli varied in emotional valence (happy/sad faces) and spatial location (left/right).
  • Experiments manipulated stimulus presentation (blocked vs. intermixed) and type (faces, arrows, hands).

Main Results:

  • A larger spatial Simon effect was observed for happy compared to sad faces, consistent with prior findings.
  • This effect persisted regardless of whether faces and arrows were presented in separate or mixed blocks.
  • Crucially, the spatial Simon effect for non-valenced objects (arrows, hands) was not influenced by the emotional valence of concurrently presented faces.

Conclusions:

  • The findings suggest that attentional bias is primarily associated with specific object categories (e.g., faces).
  • The enhanced spatial Simon effect is object-driven rather than being a response to stimulus location.
  • Emotional valence modulates attention towards specific objects, influencing cognitive task performance.