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Related Experiment Videos

The S-R information stream: where's the filter?

Aaron P Blaisdell1

  • 1Department of Psychology, University of California, Los Angeles 90095-1563, USA. blaisdell@psych.ucla.edu

Integrative Physiological and Behavioral Science : the Official Journal of the Pavlovian Society
|October 7, 2003
PubMed
Summary
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Pavlovian conditioning research suggests information filtering occurs after initial learning. Findings support a post-encoding filter, where information is stored but not always expressed in behavior, rather than an early pre-encoding filter.

Area of Science:

  • Behavioral neuroscience
  • Cognitive psychology

Background:

  • Pavlovian conditioning involves learning associations between stimuli and outcomes.
  • Models of information processing propose filters that regulate the selection of conditioned responses.
  • These filters are hypothesized to act either before (pre-encoding) or after (post-encoding) information is stored.

Purpose of the Study:

  • To investigate the location of the information filter in Pavlovian conditioning.
  • To differentiate between pre-encoding and post-encoding filter models.

Main Methods:

  • A selective review of existing literature on cue-competition effects in Pavlovian conditioning.

Main Results:

  • Cue-competition phenomena provide substantial evidence for a post-encoding filter.

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  • The reviewed evidence does not support the existence of a pre-encoding filter in these processes.

    • Conclusions:

    • Information selection in Pavlovian conditioning primarily operates via a post-encoding mechanism.
    • This suggests that information is processed and stored, but its behavioral expression is regulated later.