Pupil-linked arousal is driven by decision uncertainty and alters serial choice bias
Open accessAbstract
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.
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The folded X pattern has been used as a marker of confidence-related physiological and neural signals.
“and has been used as a marker of confidence-related physiological and neural signals (Urai et al. 2017).”
From Metacognition and Confidence: A Review and Synthesis (2024) · cites this paper as Urai et al. 2017
The Results (‘Pupil responses reflect decision uncertainty’; page unavailable) report opposite relationships between pupil dilation and evidence strength on correct versus error trials, supporting the claimed pattern as a physiological marker of decision uncertainty. The paper does not establish its use as a marker of neural signals; it discusses neural models but measures pupil responses, not neural activity. (LLM, conf=0.85)
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- Authors
- Urai, A. E., Braun, A., & Donner, T. H.
- Affiliations
- University Medical Center Hamburg-Eppendorf (DE)
- Corresponding author
- Urai, Anne E.
- Donner, Tobias H.
- Venue
- Nature Communications
- Published
- 2017-03-03
- Volume
- 8
- Issue
- 1
- Pages
- 14637-14637
- ISSN
- 2041-1723 (ISSN-L)
- PMC
- PMC5337963
- OpenAlex
- W2594002025
- Cited by
- 466
- References
- 13
- Citations by year
- 2026: 52 · 2025: 52 · 2024: 51 · 2023: 79 · 2022: 61 · 2021: 44 · 2020: 51 · 2019: 38 · 2018: 26 · 2017: 11
- FWCI
- 19.77
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Nature Communications (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Leiden Repository (Leiden University) (submittedVersion, cc-by)
- RePEc: Research Papers in Economics (submittedVersion)
- UvA-DARE (University of Amsterdam) (submittedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Data Archiving and Networked Services (DANS) (submittedVersion, cc-by)
- Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
- Funders
- European Commission (604102, 2007–2013, FP7 2007-2013, FP7/2007)
- Deutscher Akademischer Austauschdienst (FP7/2007-2013)
- Deutsche Forschungsgemeinschaft (DO1240-3-1, SFB 936/Z1, SFB 936, 1240/2-1, FP7/2007–2013, DO 1240/2‐1, SFB 936/A7)
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (604102, FP7 2007-2013)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Social Sciences › Decision Sciences › General Decision Sciences › Decision-Making and Behavioral Economics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
- Keywords
- pupil-linked arousal, pupil dilation, decision uncertainty, perceptual decision making, decision difficulty, serial correlation, computational models of decision making
- MeSH terms
- Adult, Arousal, Choice Behavior, Female, Humans, Male, Models, Biological, Psychomotor Performance, Pupil, Reaction Time, Feedback, Physiological, Uncertainty, Young Adult, Healthy Volunteers
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