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Contextual biases in confidence judgments| old_uid | 17976 |
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| title | Contextual biases in confidence judgments |
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| start_date | 2019/12/06 |
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| schedule | 11h-12h30 |
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| online | no |
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| location_info | room 6th floor |
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| summary | Confidence judgments can be formalized as a subjective probabilistic assessments that an action, answer, or statement is correct, based on the available evidence. In order to optimally re-evaluate previous choices or to efficiently arbitrate between different decision-strategies, we need such confidence judgments to be accurate and unbiased. In this talk, I will present several studies – building on experimental and computational tools from perceptual decision-making, behavioral economics and reinforcement-learning- , which demonstrate that confidence judgments are systematically biased by the context value, i.e. the anticipated average outcome of a decision. This typically translates into individuals being more confident in their choices when decisions involve potential gains than when they involve potential losses, even when difficulty and performance are equal in those two contexts. Our results furthermore suggest that the biasing effect of context-value on confidence is domain-general, with likely important functional consequences. |
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| responsibles | Le Lec, Laslier |
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