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Ongoing, rational calibration of reward-driven perceptual biases
Decision-making is often interpreted in terms of normative computations that maximize a particular reward function for stable, average behaviors. Aberrations from the reward-maximizing solutions, either across subjects or across different sessions for the same subject, are often interpreted as refle...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
eLife Sciences Publications, Ltd
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6203438/ https://www.ncbi.nlm.nih.gov/pubmed/30303484 http://dx.doi.org/10.7554/eLife.36018 |
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author | Fan, Yunshu Gold, Joshua I Ding, Long |
author_facet | Fan, Yunshu Gold, Joshua I Ding, Long |
author_sort | Fan, Yunshu |
collection | PubMed |
description | Decision-making is often interpreted in terms of normative computations that maximize a particular reward function for stable, average behaviors. Aberrations from the reward-maximizing solutions, either across subjects or across different sessions for the same subject, are often interpreted as reflecting poor learning or physical limitations. Here we show that such aberrations may instead reflect the involvement of additional satisficing and heuristic principles. For an asymmetric-reward perceptual decision-making task, three monkeys produced adaptive biases in response to changes in reward asymmetries and perceptual sensitivity. Their choices and response times were consistent with a normative accumulate-to-bound process. However, their context-dependent adjustments to this process deviated slightly but systematically from the reward-maximizing solutions. These adjustments were instead consistent with a rational process to find satisficing solutions based on the gradient of each monkey’s reward-rate function. These results suggest new dimensions for assessing the rational and idiosyncratic aspects of flexible decision-making. |
format | Online Article Text |
id | pubmed-6203438 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | eLife Sciences Publications, Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-62034382018-11-05 Ongoing, rational calibration of reward-driven perceptual biases Fan, Yunshu Gold, Joshua I Ding, Long eLife Neuroscience Decision-making is often interpreted in terms of normative computations that maximize a particular reward function for stable, average behaviors. Aberrations from the reward-maximizing solutions, either across subjects or across different sessions for the same subject, are often interpreted as reflecting poor learning or physical limitations. Here we show that such aberrations may instead reflect the involvement of additional satisficing and heuristic principles. For an asymmetric-reward perceptual decision-making task, three monkeys produced adaptive biases in response to changes in reward asymmetries and perceptual sensitivity. Their choices and response times were consistent with a normative accumulate-to-bound process. However, their context-dependent adjustments to this process deviated slightly but systematically from the reward-maximizing solutions. These adjustments were instead consistent with a rational process to find satisficing solutions based on the gradient of each monkey’s reward-rate function. These results suggest new dimensions for assessing the rational and idiosyncratic aspects of flexible decision-making. eLife Sciences Publications, Ltd 2018-10-10 /pmc/articles/PMC6203438/ /pubmed/30303484 http://dx.doi.org/10.7554/eLife.36018 Text en © 2018, Fan et al http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited. |
spellingShingle | Neuroscience Fan, Yunshu Gold, Joshua I Ding, Long Ongoing, rational calibration of reward-driven perceptual biases |
title | Ongoing, rational calibration of reward-driven perceptual biases |
title_full | Ongoing, rational calibration of reward-driven perceptual biases |
title_fullStr | Ongoing, rational calibration of reward-driven perceptual biases |
title_full_unstemmed | Ongoing, rational calibration of reward-driven perceptual biases |
title_short | Ongoing, rational calibration of reward-driven perceptual biases |
title_sort | ongoing, rational calibration of reward-driven perceptual biases |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6203438/ https://www.ncbi.nlm.nih.gov/pubmed/30303484 http://dx.doi.org/10.7554/eLife.36018 |
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