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• W2796001439 abstract "Abstract In economics and in perceptual decision-making contextual effects are well documented, where decision weights are adjusted as a function of the distribution of stimuli. Yet, in reinforcement learning literature whether and how contextual information pertaining to decision states is integrated in learning algorithms has received comparably little attention. Here, in an attempt to fill this gap, we investigated reinforcement learning behavior and its computational substrates in a task where we orthogonally manipulated both outcome valence and magnitude, resulting in systematic variations in state-values. Over two experiments, model comparison indicated that subjects’ behavior is best accounted for by an algorithm which includes both reference point-dependence and range-adaptation – two crucial features of state-dependent valuation. In addition, we found state-dependent outcome valuation to progressively emerge over time, to be favored by increasing outcome information and to be correlated with explicit understanding of the task structure. Finally, our data clearly show that, while being locally adaptive (for instance in negative valence and small magnitude contexts), state-dependent valuation comes at the cost of seemingly irrational choices, when options are extrapolated out from their original contexts." @default.
• W2796001439 created "2018-04-13" @default.
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• W2796001439 date "2018-04-06" @default.
• W2796001439 modified "2023-10-18" @default.
• W2796001439 title "Reference-point centering and range-adaptation enhance human reinforcement learning at the cost of irrational preferences" @default.
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• W2796001439 doi "https://doi.org/10.1101/295022" @default.
• W2796001439 hasPublicationYear "2018" @default.
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