Optimal policy for uncertainty estimation concurrent with decision making

Li, Xiaodong; Su, Ruixin; Chen, Yilin; Yang, Tianming

doi:10.1016/j.celrep.2023.112232

Cell Reports

2023

DOI: 10.1016/j.celrep.2023.112232

|View full text |Cite

Optimal policy for uncertainty estimation concurrent with decision making

Xiaodong Li¹,

Ruixin Su²,

Yilin Chen³

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Preprint2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Neural basis of concurrent deliberation toward a choice and degree of confidence

Vivar-Lazo,

Fetsch

2024

Preprint

View full text Add to dashboard Cite

SUMMARYDecision confidence plays a key role in flexible behavior, but exactly how and when it arises in the brain remains unclear. Theoretical accounts suggest that confidence can be inferred from the same evidence accumulation process that governs choice and response time (RT), implying that a provisional confidence assessment could be updated in parallel with decision formation. We tested this using a novel RT task in nonhuman primates that measures choice and confidence with a single eye movement on every trial. Monkey behavior was well fit by a 2D bounded accumulator model instantiating parallel processing of evidence, rejecting a serial model in which choice is resolved first followed by post-decision accumulation for confidence. Neural activity in area LIP reflected concurrent accumulation, exhibiting within-trial dynamics consistent with parallel updating at near zero time lag, and significant covariation in choice and confidence signals across the population. The results demonstrate that monkeys concurrently process a single stream of evidence to arrive at a choice and level of confidence, and illuminate a candidate neural mechanism for this ability.

show abstract

Neural basis of concurrent deliberation toward a choice and degree of confidence

Vivar-Lazo,

Fetsch

2024

Preprint

View full text Add to dashboard Cite

show abstract

Spatiotemporal evidence accumulation through saccadic sampling for object recognition

Zheng,

Hu,

Okazawa

2024

Preprint

View full text Add to dashboard Cite

Visual object recognition has been extensively studied under fixation conditions, but our natural viewing involves frequent saccadic eye movements that scan multiple local informative features within an object (e.g., eyes and mouth in a face image). Such visual exploration can facilitate object recognition, but mechanistic accounts of the contribution of saccades are yet to be established due to the presumed complexity of the interactions between the visual and oculomotor systems. Here, we present a framework for formulating object recognition as a process of accumulating evidence from local features through saccades to render a decision. This approach offers a simple model that quantitatively explains human face and object categorization behavior, even under conditions in which people freely make saccades to scan local features, departing from past studies that required controlled eye movements to examine trans-saccadic integration. Notably, our experimental results showed that active saccade commands (efference copy) did not substantially contribute to behavioral performance and that the patterns of saccades were largely independent of the ongoing decision-making processes. Therefore, we propose that object recognition with saccades can be approximated using a parsimonious decision-making model without assuming complex interactions between the visual and oculomotor systems.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Optimal policy for uncertainty estimation concurrent with decision making

Cited by 2 publications

References 59 publications

Neural basis of concurrent deliberation toward a choice and degree of confidence

Neural basis of concurrent deliberation toward a choice and degree of confidence

Spatiotemporal evidence accumulation through saccadic sampling for object recognition

Contact Info

Product

Resources

About