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Updated: Jul 24, 2025

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Mental representations mediate aversive learning in humans.

Xiaolin Qiao1, Lauren Wolters1, James D Howard1

  • 1Department of Psychology, Brandeis University.

Behavioral Neuroscience
|July 6, 2023
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Summary
This summary is machine-generated.

We developed a human version of the representation-mediated learning (RML) task. This task shows that aversive learning about symbols can indirectly reduce preference for associated odors.

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Area of Science:

  • Cognitive Neuroscience
  • Psychology
  • Neuroscience

Background:

  • Mental representations are crucial for cognition but can lead to hallucinations when overly robust.
  • Measuring mental representation strength offers insights into adaptive and maladaptive behaviors.
  • The representation-mediated learning (RML) task in rodents assesses mental representation robustness.

Purpose of the Study:

  • To develop and validate a human version of the RML task.
  • To investigate how aversive learning influences mental representations of associated stimuli.
  • To explore the relationship between direct and mediated learning in humans.

Main Methods:

  • Participants learned associations between visual symbols and food odors.
  • Odor preferences were measured before and after pairing one symbol with an aversive noise.
  • The study assessed changes in odor preference as a measure of mediated learning.

Main Results:

  • A selective decrease in odor preference was observed after the symbol-odor association was negatively conditioned.
  • This mediated learning effect was directly proportional to the direct aversive learning of the symbols.
  • Findings suggest mental representations can acquire new associations indirectly.

Conclusions:

  • The human RML task successfully demonstrates mediated learning.
  • Mental representations can undergo associative learning even when the associated stimulus is absent.
  • This research provides a foundation for studying the neural basis of mediated learning in humans.