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Related Experiment Video

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Creating Virtual-hand and Virtual-face Illusions to Investigate Self-representation
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Global visual confidence.

Alan L F Lee1,2, Vincent de Gardelle3, Pascal Mamassian4

  • 1Department of Applied Psychology, Lingnan University, Tuen Mun, Hong Kong. alanlee@ln.edu.hk.

Psychonomic Bulletin & Review
|March 26, 2021
PubMed
Summary
This summary is machine-generated.

Humans can integrate multiple perceptual decisions to estimate overall task confidence. This global confidence judgment improves with more data but is imperfect, influenced by response times.

Keywords:
ConfidenceIntegrationMetacognitionPerceptionVision

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Area of Science:

  • Cognitive psychology
  • Neuroscience
  • Decision science

Background:

  • Visual confidence typically reflects precision in a single decision.
  • Assessing confidence across an entire task requires integrating information from multiple decisions.
  • Understanding this metacognitive process is crucial for evaluating task performance and learning.

Purpose of the Study:

  • To measure global confidence acquired across multiple perceptual decisions.
  • To investigate how information is integrated for global confidence judgments.
  • To identify factors influencing global confidence, such as response times.

Main Methods:

  • Participants performed orientation-discrimination tasks on series of stimuli.
  • A metacognitive task involved judging global confidence across series (prospective or retrospective).
  • Model comparison analyzed the contribution of sensory evidence and response times.

Main Results:

  • Global confidence judgment accuracy increased with the number of items in a series.
  • Confidence integration occurred regardless of whether judgment was prospective or retrospective.
  • Global confidence was influenced by response times, particularly recent ones.

Conclusions:

  • Humans integrate information across multiple decisions to form global confidence estimates.
  • This integration process is not fully optimal, showing biases in using response-time data.
  • Global confidence reflects a combination of sensory evidence and biased response-time information.