Pupil-linked arousal is driven by decision uncertainty and alters serial choice bias

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Pupil-linked arousal is driven by decision uncertainty and alters serial choice bias. / Urai, Anne E; Braun, Anke; Donner, Tobias H.

in: NAT COMMUN, Jahrgang 8, Nr. 14637, 03.03.2017, S. 1-11.

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@article{27b1658baa6945868427d3c6997fcb1b,
title = "Pupil-linked arousal is driven by decision uncertainty and alters serial choice bias",
abstract = "While judging their sensory environments, decision-makers seem to use the uncertainty about their choices to guide adjustments of their subsequent behaviour. One possible source of these behavioural adjustments is arousal: decision uncertainty might drive the brain's arousal systems, which control global brain state and might thereby shape subsequent decision-making. Here, we measure pupil diameter, a proxy for central arousal state, in human observers performing a perceptual choice task of varying difficulty. Pupil dilation, after choice but before external feedback, reflects three hallmark signatures of decision uncertainty derived from a computational model. This increase in pupil-linked arousal boosts observers' tendency to alternate their choice on the subsequent trial. We conclude that decision uncertainty drives rapid changes in pupil-linked arousal state, which shape the serial correlation structure of ongoing choice behaviour.",
keywords = "Journal Article",
author = "Urai, {Anne E} and Anke Braun and Donner, {Tobias H}",
year = "2017",
month = mar,
day = "3",
doi = "10.1038/ncomms14637",
language = "English",
volume = "8",
pages = "1--11",
journal = "NAT COMMUN",
issn = "2041-1723",
publisher = "NATURE PUBLISHING GROUP",
number = "14637",

}

RIS

TY - JOUR

T1 - Pupil-linked arousal is driven by decision uncertainty and alters serial choice bias

AU - Urai, Anne E

AU - Braun, Anke

AU - Donner, Tobias H

PY - 2017/3/3

Y1 - 2017/3/3

N2 - While judging their sensory environments, decision-makers seem to use the uncertainty about their choices to guide adjustments of their subsequent behaviour. One possible source of these behavioural adjustments is arousal: decision uncertainty might drive the brain's arousal systems, which control global brain state and might thereby shape subsequent decision-making. Here, we measure pupil diameter, a proxy for central arousal state, in human observers performing a perceptual choice task of varying difficulty. Pupil dilation, after choice but before external feedback, reflects three hallmark signatures of decision uncertainty derived from a computational model. This increase in pupil-linked arousal boosts observers' tendency to alternate their choice on the subsequent trial. We conclude that decision uncertainty drives rapid changes in pupil-linked arousal state, which shape the serial correlation structure of ongoing choice behaviour.

AB - While judging their sensory environments, decision-makers seem to use the uncertainty about their choices to guide adjustments of their subsequent behaviour. One possible source of these behavioural adjustments is arousal: decision uncertainty might drive the brain's arousal systems, which control global brain state and might thereby shape subsequent decision-making. Here, we measure pupil diameter, a proxy for central arousal state, in human observers performing a perceptual choice task of varying difficulty. Pupil dilation, after choice but before external feedback, reflects three hallmark signatures of decision uncertainty derived from a computational model. This increase in pupil-linked arousal boosts observers' tendency to alternate their choice on the subsequent trial. We conclude that decision uncertainty drives rapid changes in pupil-linked arousal state, which shape the serial correlation structure of ongoing choice behaviour.

KW - Journal Article

U2 - 10.1038/ncomms14637

DO - 10.1038/ncomms14637

M3 - SCORING: Journal article

C2 - 28256514

VL - 8

SP - 1

EP - 11

JO - NAT COMMUN

JF - NAT COMMUN

SN - 2041-1723

IS - 14637

ER -