Information about action outcomes differentially affects learning from self-determined versus imposed choices

Valérian Chambon (), Héloïse Théro (), Marie Vidal, Henri Vandendriessche, Patrick Haggard and Stefano Palminteri ()
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Valérian Chambon: PSL University
Héloïse Théro: PSL University
Marie Vidal: PSL University
Henri Vandendriessche: PSL University
Patrick Haggard: PSL University
Stefano Palminteri: PSL University

Nature Human Behaviour, 2020, vol. 4, issue 10, 1067-1079

Abstract: Abstract The valence of new information influences learning rates in humans: good news tends to receive more weight than bad news. We investigated this learning bias in four experiments, by systematically manipulating the source of required action (free versus forced choices), outcome contingencies (low versus high reward) and motor requirements (go versus no-go choices). Analysis of model-estimated learning rates showed that the confirmation bias in learning rates was specific to free choices, but was independent of outcome contingencies. The bias was also unaffected by the motor requirements, thus suggesting that it operates in the representational space of decisions, rather than motoric actions. Finally, model simulations revealed that learning rates estimated from the choice-confirmation model had the effect of maximizing performance across low- and high-reward environments. We therefore suggest that choice-confirmation bias may be adaptive for efficient learning of action–outcome contingencies, above and beyond fostering person-level dispositions such as self-esteem.

Date: 2020
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DOI: 10.1038/s41562-020-0919-5

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