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Related Experiment Videos

Implicit memory bias and trait anxiety: a psychophysiological analysis.

Lesley K Harrison1, Graham Turpin

  • 1Clinical Psychology, School of Psychology, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK. l.k.harrison@bham.ac.uk

Biological Psychology
|February 13, 2003
PubMed
Summary

Anxiety influences how people remember threatening words. This study found all participants, regardless of anxiety level, showed an implicit memory bias towards non-threat material, challenging initial predictions.

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Area of Science:

  • Cognitive Psychology
  • Psychophysiology

Background:

  • Anxiety is associated with cognitive biases.
  • Individuals with anxiety may exhibit altered attention and memory for threat-related stimuli.

Purpose of the Study:

  • To investigate the impact of threatening words and trait anxiety on implicit memory.
  • To explore the attentional and encoding processes underlying cognitive biases in anxiety using psychophysiological measures.

Main Methods:

  • Forty participants were divided into high and low trait anxiety groups.
  • Participants completed a wordstem completion task with threat and non-threat words.
  • Psychophysiological data (heart rate, electrodermal response) were collected.

Main Results:

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  • All participants demonstrated an implicit memory bias towards non-threat material.
  • Initial cardiac deceleration to threat stimuli was observed, followed by acceleration to non-threat stimuli.
  • No significant difference in implicit memory bias was found between high and low anxiety groups.

    • Conclusions:

    • The findings suggest a general implicit memory bias to non-threat material, irrespective of trait anxiety levels.
    • Results are discussed in the context of the 'vigilance-avoidance' model of attention to threat.
    • Further research is needed to fully understand the interplay between anxiety, attention, and implicit memory.