Cargando…
fMRI Evidence for a Dual Process Account of the Speed-Accuracy Tradeoff in Decision-Making
BACKGROUND: The speed and accuracy of decision-making have a well-known trading relationship: hasty decisions are more prone to errors while careful, accurate judgments take more time. Despite the pervasiveness of this speed-accuracy trade-off (SAT) in decision-making, its neural basis is still unkn...
Autores principales: | , , |
---|---|
Formato: | Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2008
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2440815/ https://www.ncbi.nlm.nih.gov/pubmed/18612380 http://dx.doi.org/10.1371/journal.pone.0002635 |
_version_ | 1782156582678691840 |
---|---|
author | Ivanoff, Jason Branning, Philip Marois, René |
author_facet | Ivanoff, Jason Branning, Philip Marois, René |
author_sort | Ivanoff, Jason |
collection | PubMed |
description | BACKGROUND: The speed and accuracy of decision-making have a well-known trading relationship: hasty decisions are more prone to errors while careful, accurate judgments take more time. Despite the pervasiveness of this speed-accuracy trade-off (SAT) in decision-making, its neural basis is still unknown. METHODOLOGY/PRINCIPAL FINDINGS: Using functional magnetic resonance imaging (fMRI) we show that emphasizing the speed of a perceptual decision at the expense of its accuracy lowers the amount of evidence-related activity in lateral prefrontal cortex. Moreover, this speed-accuracy difference in lateral prefrontal cortex activity correlates with the speed-accuracy difference in the decision criterion metric of signal detection theory. We also show that the same instructions increase baseline activity in a dorso-medial cortical area involved in the internal generation of actions. CONCLUSIONS/SIGNIFICANCE: These findings suggest that the SAT is neurally implemented by modulating not only the amount of externally-derived sensory evidence used to make a decision, but also the internal urge to make a response. We propose that these processes combine to control the temporal dynamics of the speed-accuracy trade-off in decision-making. |
format | Text |
id | pubmed-2440815 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2008 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-24408152008-07-09 fMRI Evidence for a Dual Process Account of the Speed-Accuracy Tradeoff in Decision-Making Ivanoff, Jason Branning, Philip Marois, René PLoS One Research Article BACKGROUND: The speed and accuracy of decision-making have a well-known trading relationship: hasty decisions are more prone to errors while careful, accurate judgments take more time. Despite the pervasiveness of this speed-accuracy trade-off (SAT) in decision-making, its neural basis is still unknown. METHODOLOGY/PRINCIPAL FINDINGS: Using functional magnetic resonance imaging (fMRI) we show that emphasizing the speed of a perceptual decision at the expense of its accuracy lowers the amount of evidence-related activity in lateral prefrontal cortex. Moreover, this speed-accuracy difference in lateral prefrontal cortex activity correlates with the speed-accuracy difference in the decision criterion metric of signal detection theory. We also show that the same instructions increase baseline activity in a dorso-medial cortical area involved in the internal generation of actions. CONCLUSIONS/SIGNIFICANCE: These findings suggest that the SAT is neurally implemented by modulating not only the amount of externally-derived sensory evidence used to make a decision, but also the internal urge to make a response. We propose that these processes combine to control the temporal dynamics of the speed-accuracy trade-off in decision-making. Public Library of Science 2008-07-09 /pmc/articles/PMC2440815/ /pubmed/18612380 http://dx.doi.org/10.1371/journal.pone.0002635 Text en Ivanoff et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Ivanoff, Jason Branning, Philip Marois, René fMRI Evidence for a Dual Process Account of the Speed-Accuracy Tradeoff in Decision-Making |
title | fMRI Evidence for a Dual Process Account of the Speed-Accuracy Tradeoff in Decision-Making |
title_full | fMRI Evidence for a Dual Process Account of the Speed-Accuracy Tradeoff in Decision-Making |
title_fullStr | fMRI Evidence for a Dual Process Account of the Speed-Accuracy Tradeoff in Decision-Making |
title_full_unstemmed | fMRI Evidence for a Dual Process Account of the Speed-Accuracy Tradeoff in Decision-Making |
title_short | fMRI Evidence for a Dual Process Account of the Speed-Accuracy Tradeoff in Decision-Making |
title_sort | fmri evidence for a dual process account of the speed-accuracy tradeoff in decision-making |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2440815/ https://www.ncbi.nlm.nih.gov/pubmed/18612380 http://dx.doi.org/10.1371/journal.pone.0002635 |
work_keys_str_mv | AT ivanoffjason fmrievidenceforadualprocessaccountofthespeedaccuracytradeoffindecisionmaking AT branningphilip fmrievidenceforadualprocessaccountofthespeedaccuracytradeoffindecisionmaking AT maroisrene fmrievidenceforadualprocessaccountofthespeedaccuracytradeoffindecisionmaking |