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Decision-making from temporally accumulated conflicting evidence: The more the merrier

How do humans evaluate temporally accumulated discrete pieces of evidence and arrive at a decision despite the presence of conflicting evidence? In the present study, we showed human participants a sequential presentation of objects drawn from two novel object categories and asked them to decide whe...

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Detalles Bibliográficos
Autores principales: Mocz, Viola, Xu, Yaoda
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Association for Research in Vision and Ophthalmology 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9832717/
https://www.ncbi.nlm.nih.gov/pubmed/36598454
http://dx.doi.org/10.1167/jov.23.1.3
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author Mocz, Viola
Xu, Yaoda
author_facet Mocz, Viola
Xu, Yaoda
author_sort Mocz, Viola
collection PubMed
description How do humans evaluate temporally accumulated discrete pieces of evidence and arrive at a decision despite the presence of conflicting evidence? In the present study, we showed human participants a sequential presentation of objects drawn from two novel object categories and asked them to decide whether a given presentation contained more objects from one or the other category. We found that both a more disparate ratio and greater numerosity of objects improved both reaction time (RT) and accuracy. The effect of numerosity was separate from ratio, where with a fixed object ratio, sequences with more total objects had lower RT and lower error rates than those with fewer total objects. We replicated these results across three experiments. Additionally, even with the total presentation duration equated and with the motor response assignment varied from trial to trial, an effect of numerosity was still found in RT. The same RT benefit was also present when objects were shown simultaneously, rather than sequentially. Together, these results showed that, for comparative numerosity judgment involving sequential displays, there was a benefit of numerosity, such that showing more objects independent of the object ratio and the total presentation time led to faster decision performance.
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spelling pubmed-98327172023-01-12 Decision-making from temporally accumulated conflicting evidence: The more the merrier Mocz, Viola Xu, Yaoda J Vis Article How do humans evaluate temporally accumulated discrete pieces of evidence and arrive at a decision despite the presence of conflicting evidence? In the present study, we showed human participants a sequential presentation of objects drawn from two novel object categories and asked them to decide whether a given presentation contained more objects from one or the other category. We found that both a more disparate ratio and greater numerosity of objects improved both reaction time (RT) and accuracy. The effect of numerosity was separate from ratio, where with a fixed object ratio, sequences with more total objects had lower RT and lower error rates than those with fewer total objects. We replicated these results across three experiments. Additionally, even with the total presentation duration equated and with the motor response assignment varied from trial to trial, an effect of numerosity was still found in RT. The same RT benefit was also present when objects were shown simultaneously, rather than sequentially. Together, these results showed that, for comparative numerosity judgment involving sequential displays, there was a benefit of numerosity, such that showing more objects independent of the object ratio and the total presentation time led to faster decision performance. The Association for Research in Vision and Ophthalmology 2023-01-04 /pmc/articles/PMC9832717/ /pubmed/36598454 http://dx.doi.org/10.1167/jov.23.1.3 Text en Copyright 2023 The Authors https://creativecommons.org/licenses/by/4.0/This work is licensed under a Creative Commons Attribution 4.0 International License.
spellingShingle Article
Mocz, Viola
Xu, Yaoda
Decision-making from temporally accumulated conflicting evidence: The more the merrier
title Decision-making from temporally accumulated conflicting evidence: The more the merrier
title_full Decision-making from temporally accumulated conflicting evidence: The more the merrier
title_fullStr Decision-making from temporally accumulated conflicting evidence: The more the merrier
title_full_unstemmed Decision-making from temporally accumulated conflicting evidence: The more the merrier
title_short Decision-making from temporally accumulated conflicting evidence: The more the merrier
title_sort decision-making from temporally accumulated conflicting evidence: the more the merrier
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9832717/
https://www.ncbi.nlm.nih.gov/pubmed/36598454
http://dx.doi.org/10.1167/jov.23.1.3
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