Skip to Main content Skip to Navigation
New interface
Journal articles

Modeling perceptual confidence and the confidence forced-choice paradigm.

Abstract : Perceptual confidence is an evaluation of the validity of our perceptual decisions. We present here a complete generative model that describes how confidence judgments result from some confidence evidence. The model that generates confidence evidence has two main parameters, confidence noise and confidence boost. Confidence noise reduces the sensitivity to the confidence evidence, and confidence boost accounts for information used for confidence judgment which was not used for the perceptual decision. The opposite effect of these two parameters creates a problem of confidence parameters indeterminacy, where the confidence in a perceptual decision is the same in spite of differences in confidence noise and confidence boost. When confidence is estimated for multiple stimulus strengths, both of these parameters can be recovered, thus allowing us to estimate whether confidence is generated using the same primary information that was used for the perceptual decision or some secondary information. We also describe a novel measure of confidence efficiency relative to the ideal confidence observer, as well as the estimate of one type of confidence bias. Finally, we apply the model to the confidence forced-choice paradigm, a paradigm that provides objective estimates of confidence, and we discuss how each parameter of the model can be recovered using this paradigm.
Document type :
Journal articles
Complete list of metadata

https://hal-cnrs.archives-ouvertes.fr/hal-03452165
Contributor : Pascal Mamassian Connect in order to contact the contributor
Submitted on : Friday, November 26, 2021 - 6:01:16 PM
Last modification on : Wednesday, August 31, 2022 - 12:14:38 PM
Long-term archiving on: : Sunday, February 27, 2022 - 8:10:18 PM

File

cfc_ms_main_revision_210520_cl...
Files produced by the author(s)

Identifiers

Collections

Citation

Pascal Mamassian, Vincent de Gardelle. Modeling perceptual confidence and the confidence forced-choice paradigm.. Psychological Review, 2021, ⟨10.1037/rev0000312⟩. ⟨hal-03452165⟩

Share

Metrics

Record views

91

Files downloads

102