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Monkeys exhibit a paradoxical decrease in performance in high-stakes scenarios.

Adam L Smoulder1,2, Nicholas P Pavlovsky2,3, Patrick J Marino2,3

  • 1Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213.

Proceedings of the National Academy of Sciences of the United States of America
|August 24, 2021
PubMed
Summary
This summary is machine-generated.

Animals, like humans, can "choke under pressure" when potential rewards become too high. This study demonstrates that choking behavior in rhesus monkeys suggests a conserved neural basis for this phenomenon across species.

Keywords:
animal behaviormotivationmotor controlreachingreward

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Area of Science:

  • Neuroscience
  • Behavioral Economics
  • Animal Cognition

Background:

  • Choking under pressure is a phenomenon where performance decreases in high-stakes situations despite increased potential rewards.
  • The neural basis of choking is not well understood, and it was unclear if it was unique to humans.

Purpose of the Study:

  • To determine if animals exhibit choking under pressure.
  • To establish an animal model for investigating the neural underpinnings of choking.

Main Methods:

  • Three rhesus monkeys were trained on a difficult reaching task with variable reward amounts.
  • Performance was analyzed based on reward level, focusing on failure types.

Main Results:

  • Monkeys performed worse with exceptionally high potential rewards, exhibiting "choking."
  • Failures were characterized by overly cautious reaching, aligning with theories of explicit monitoring.

Conclusions:

  • Choking under pressure is not exclusive to humans.
  • The findings suggest that the neural mechanisms underlying choking may be conserved across species, enabling further research.