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• W3176121477 endingPage "372" @default.
• W3176121477 startingPage "361" @default.
• W3176121477 abstract "Humans and other animals often need to balance the desire to gather sensory information (to make the best choice) with the urgency to act, facing a speed-accuracy tradeoff (SAT). Given the ubiquity of SAT across species, extensive research has been devoted to understanding the computational mechanisms allowing its regulation at different timescales, including from one context to another, and from one decision to another. However, animals must frequently change their SAT on even shorter timescales-that is, over the course of an ongoing decision-and little is known about the mechanisms that allow such rapid adaptations. The present study aimed at addressing this issue. Human subjects performed a decision task with changing evidence. In this task, subjects received rewards for correct answers but incurred penalties for mistakes. An increase or a decrease in penalty occurring halfway through the trial promoted rapid SAT shifts, favoring speeded decisions either in the early or in the late stage of the trial. Importantly, these shifts were associated with stage-specific adjustments in the accuracy criterion exploited for committing to a choice. Those subjects who decreased the most their accuracy criterion at a given decision stage exhibited the highest gain in speed, but also the highest cost in terms of performance accuracy at that time. Altogether, the current findings offer a unique extension of previous work, by suggesting that dynamic cha*nges in accuracy criterion allow the regulation of the SAT within the timescale of a single decision.NEW & NOTEWORTHY Extensive research has been devoted to understanding the mechanisms allowing the regulation of the speed-accuracy tradeoff (SAT) from one context to another and from one decision to another. Here, we show that humans can voluntarily change their SAT on even shorter timescales-that is, over the course of a decision. These rapid SAT shifts are associated with dynamic adjustments in the accuracy criterion exploited for committing to a choice." @default.
• W3176121477 created "2021-07-05" @default.
• W3176121477 creator A5018287398 @default.
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• W3176121477 date "2021-08-01" @default.
• W3176121477 modified "2023-10-03" @default.
• W3176121477 title "Trading accuracy for speed over the course of a decision" @default.
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• W3176121477 doi "https://doi.org/10.1152/jn.00038.2021" @default.
• W3176121477 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34191623" @default.
• W3176121477 hasPublicationYear "2021" @default.
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