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Reducing State Anxiety Using Working Memory Maintenance
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A suicidal mind tends to maintain less negative information in visual working memory.

Weizhen Xie1, Huanhuan Li2, Yingmin Zou3

  • 1Department of Psychology, University of California, Riverside, CA, USA; Department of Psychology, Renmin University of China, Beijing, China.

Psychiatry Research
|October 3, 2017
PubMed
Summary

Individuals with high suicidal ideation and major depressive disorder (MDD) show impaired visual working memory (WM) for negative emotional stimuli. This suggests pain avoidance impacts cognitive processing in those at higher suicide risk.

Keywords:
CapacityDepressionPsychological painSuicideWorking memory

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Psychiatry

Background:

  • Suicidal mindset is linked to the motivation to avoid psychological pain.
  • Understanding cognitive patterns in suicidal ideation is crucial for risk assessment and intervention.

Purpose of the Study:

  • To investigate how the motivation to avoid psychological pain influences the maintenance of affective information in visual working memory (WM).
  • To examine cognitive differences in visual WM capacity between individuals with high and low suicidal ideation within major depressive disorder (MDD).

Main Methods:

  • Utilized visual WM change localization tasks with emotional and non-emotional stimuli.
  • Assessed WM capacity for different stimuli types in 45 MDD outpatients and 25 healthy controls.
  • Categorized MDD patients into high and low suicidal ideation groups using the Beck Scale for Suicide Ideation.

Main Results:

  • MDD patients exhibited reduced overall WM capacity for neutral information (colors).
  • MDD patients with high suicidal ideation showed a disproportional reduction in retaining negative emotional stimuli in WM.
  • This reduction in WM capacity for negative stimuli correlated with psychological pain and suicidal ideation levels.

Conclusions:

  • Pain avoidance motivation significantly impacts information processing in visual WM.
  • Aberrant cognitive patterns, particularly in affective processing, are associated with higher suicide risk.
  • Findings offer a novel perspective on cognitive mechanisms underlying suicidal ideation.