ArticleScientific reports2020
Incentive motivation improves numerosity discrimination: Insights from pupillometry combined with drift-diffusion modelling.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Eye Tracking Insights Into Movement Preparation and Execution Under Nonstandard Visual Movement Feedback.Psychophysiology · 2026Article
- Reverse Hierarchical Processing of Speech in Talker Identification.The European journal of neuroscience · 2026Article
- The Difficulty in Numerical Computation Impacts Motor Decisions in a Stop-Signal Task.The European journal of neuroscience · 2026Article
- Research progress on the role of the locus coeruleus in cognitive function.Frontiers in human neuroscience · 2026Review
- Subcortical nuclei of the human ascending arousal system encode anticipated reward but do not predict subsequent memory.Cerebral cortex (New York, N.Y. : 1991) · 2025Article
- Can monetary incentives overturn fairness-based decisions?Royal Society open science · 2023Article
- Incentive motivation improves numerosity discrimination in children and adolescents.Scientific reports · 2022Article
- Publication guidelines and recommendations for pupillary measurement in psychophysiological studies.Psychophysiology · 2022Article
- Cognitive Control as a Multivariate Optimization Problem.Journal of cognitive neuroscience · 2022Article
- Task-general efficiency of evidence accumulation as a computationally-defined neurocognitive trait: Implications for clinical neuroscience.Biological psychiatry global open science · 2021Article
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Authors and funding
2 authors.
Funding
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Abstract
Recent studies show that training the approximate number system (ANS) holds promise for improving symbolic math abilities. Extending this line of research, the present study aims to shed light on incentive motivation of numerosity discrimination and the underlying mechanisms. Thirty-two young adults performed a novel incentivized dot comparison task, that we developed, to discern the larger of two numerosities. An EZ-diffusion model was applied to decompose motivational effects on component processes of perceptual decision-making. Furthermore, phasic pupil dilation served as an indicator of the involvement of the salience network. The results of improved accuracy and a higher information accumulation rate under the reward condition suggest that incentive motivation boosts the precision of the ANS. These novel findings extend earlier evidence on reward-related enhancements of perceptual discrimination to the domain of numerosity perception. In light of the Adaptive Gain Theory, we interpret the results in terms of two processes of gain modulation driven by the locus coeruleus-norepinephrine system. Specifically, the reward-induced increase in pupil dilation may reflect incentive modulation of (i) salience attention during reward anticipation towards incentivized stimuli to upregulate stimulus processing that results in a larger drift rate; and (ii) response caution that leads to an increased decision threshold.
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Registered trials
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