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Central and Divided Visual Field Presentation of Emotional Images to Measure Hemispheric Differences in Motivated Attention
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Emotion based attentional priority for storage in visual short-term memory.

Luca Simione1, Lucia Calabrese2, Francesco S Marucci2

  • 1Department of Psychology, "Sapienza" University of Rome, Rome, Italy; ISTC, Institute of Cognitive Sciences and Technologies, CNR, Rome, Italy.

Plos One
|May 3, 2014
PubMed
Summary
This summary is machine-generated.

Emotional faces are prioritized in visual short-term memory (VSTM) under high competition. Threatening faces show superiority when cognitive resources are limited, demonstrating attentional prioritization.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • Research indicates emotional stimuli are prioritized over neutral ones when cognitive resources are limited, a phenomenon termed 'emotional superiority'.
  • Debate exists whether this superiority applies to all emotional stimuli or specifically to threat-related stimuli.
  • Understanding attentional prioritization for emotional faces in visual short-term memory (VSTM) is crucial for cognitive models.

Purpose of the Study:

  • To investigate the prioritization of emotional faces for storage in VSTM under varying levels of processing competition.
  • To differentiate between general emotional superiority and specific threat superiority effects.
  • To examine how task demands and resource availability influence the prioritization of emotional stimuli.

Main Methods:

  • Utilized a visual short-term memory (VSTM) report procedure with schematic faces (angry, happy, neutral).
  • Manipulated processing competition by varying array exposure duration (150 ms vs. 400 ms) in Experiment 1.
  • Manipulated competition by varying set size (3 vs. 5 stimuli) with a fixed exposure duration (150 ms) in Experiment 2.

Main Results:

  • Experiment 1 (high competition, 150 ms exposure) revealed an emotional superiority effect.
  • Experiment 2 (maximal competition, 5-stimulus set size) demonstrated threat superiority, but not general emotional superiority.
  • Findings indicate attentional prioritization for emotional faces in VSTM is modulated by task demands and resource availability.

Conclusions:

  • Emotional faces are prioritized for storage in VSTM, with threat superiority emerging under conditions of maximal cognitive load.
  • Task demands critically influence the availability of processing resources, thereby modulating the extent of emotional or threat prioritization.
  • The study integrates research on visual selection and emotion, highlighting resource availability as a key factor in processing emotional stimuli.