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Allocation of cognitive processing capacity during human autonomic classical conditioning.

M E Dawson, A M Schell, J R Beers

    Journal of Experimental Psychology. General
    |September 1, 1982
    PubMed
    Summary
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    Cognitive processing capacity allocation during classical conditioning was measured using a reaction-time task. Greater capacity was allocated to the conditioned stimulus (CS+) than the CS-, especially at 300ms post-CS+ onset.

    Area of Science:

    • Cognitive Psychology
    • Neuroscience
    • Psychophysiology

    Background:

    • Classical conditioning involves learning associations between stimuli.
    • Cognitive interpretations suggest active processing during conditioning.
    • Measuring cognitive capacity allocation provides insight into these processes.

    Purpose of the Study:

    • To measure cognitive processing capacity allocation during autonomic discrimination classical conditioning.
    • To investigate the temporal dynamics of capacity allocation relative to conditioned and unconditioned stimuli.
    • To explore individual differences in capacity allocation based on electrodermal responses.

    Main Methods:

    • Two experiments used a 7.0-sec delay classical conditioning paradigm with college students.

    Related Experiment Videos

  • Autonomic classical conditioning was measured via electrodermal responses.
  • Cognitive capacity allocation was assessed using a secondary reaction-time (RT) task with auditory signals presented at various intervals after conditioned stimulus (CS) onset and following unconditioned stimuli (UCSs).

    • Main Results:

    • Reaction times (RTs) were slower during the conditioned stimulus plus (CS+) than the conditioned stimulus minus (CS-), indicating greater capacity allocation to CS+.
    • The largest capacity allocation occurred 300 msec after CS+ onset.
    • An unexpected unconditioned stimulus (UCS) following CS- increased capacity allocation more than an expected UCS following CS+.
    • Large electrodermal responders showed distinct capacity allocation patterns compared to small responders, suggesting more rapid processing of significant stimuli.

    Conclusions:

    • Human classical conditioning involves complex cognitive processes.
    • The secondary-task RT technique effectively integrates conditioning theories, psychophysiology, and cognitive psychology.
    • Findings support cognitive interpretations of classical conditioning and highlight individual differences in stimulus processing.