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Classical conditioning and attentional bias.

H Merckelbach1, W van Hout, P de Jong

  • 1University of Limburg, The Netherlands.

Journal of Behavior Therapy and Experimental Psychiatry
|September 1, 1990
PubMed
Summary

Aversive classical conditioning can create attentional bias by pairing neutral stimuli with unpleasant events. This bias, demonstrated through longer task completion times, suggests a learning-based origin for attention difficulties.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Behavioral Science

Background:

  • Attentional bias is a common feature in anxiety disorders.
  • The origins of attentional bias are not fully understood.
  • Classical conditioning is a fundamental learning process.

Purpose of the Study:

  • To investigate if aversive classical conditioning can induce an attentional bias.
  • To explore the role of learning in the development of attentional biases.

Main Methods:

  • A differential conditioning paradigm was employed using angry faces as conditioned stimuli (CS+/CS-) and electric shock as the unconditioned stimulus (UCS).
  • Skin conductance responses (SCRs) were recorded to assess conditioning effectiveness.
  • During extinction, participants performed an addition task superimposed on CS+ and CS- slides, with vocalization latencies measured via electromyography (EMG).

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Main Results:

  • Differential SCRs confirmed successful conditioning to CS+ and CS- stimuli.
  • Vocalization latencies for the addition task were significantly longer when stimuli were CS+ compared to CS-.
  • This indicates that the conditioned stimulus (CS+) captured attentional resources.

Conclusions:

  • Aversive classical conditioning can lead to the acquisition of attentional bias.
  • The conditioned stimulus gains attention-grabbing properties, competing with resources needed for concurrent tasks.
  • These findings support a learning-based model for understanding attentional biases, potentially applicable to anxiety.