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Identification and Classification of Position-specific GABAA Receptor Subunit Missense Variants for Their Role In Hippocampal Pyramidal Neurons
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Identification and Classification of Position-specific GABAA Receptor Subunit Missense Variants for Their Role In Hippocampal Pyramidal Neurons

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Open your eyes for prediction errors.

Senne Braem1, Ena Coenen, Klaas Bombeke

  • 1Department of Experimental Psychology, Ghent University, Henri Dunantlaan 2, 9000, Ghent, Belgium, senne.braem@ugent.be.

Cognitive, Affective & Behavioral Neuroscience
|January 16, 2015
PubMed
Summary
This summary is machine-generated.

Autonomic arousal, measured by pupil size, reflects performance prediction errors. Larger pupil responses indicate greater surprise following task outcomes, whether correct or incorrect.

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Identification and Classification of Position-specific GABAA Receptor Subunit Missense Variants for Their Role In Hippocampal Pyramidal Neurons
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Area of Science:

  • Cognitive Neuroscience
  • Psychophysiology

Background:

  • Autonomic arousal increases after correct performance on difficult tasks compared to easy tasks.
  • This arousal response is hypothesized to reflect the surprise associated with task outcomes.

Purpose of the Study:

  • To investigate if autonomic arousal (pupil size) reflects performance prediction errors.
  • To test the hypothesis that arousal patterns reverse for erroneous responses.

Main Methods:

  • Participants performed a flanker task.
  • Pupil size was measured online during task performance.

Main Results:

  • Pupil size was larger for correct difficult trials than correct easy trials.
  • Pupil size was smaller for incorrect difficult trials than incorrect easy trials.
  • Individual differences in congruency effects correlated with pupil size differences.

Conclusions:

  • Pupil size serves as a measure of performance prediction errors.
  • The findings support the role of surprise in modulating autonomic arousal during cognitive tasks.