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EEG activity represents the correctness of perceptual decisions trial-by-trial

Performance monitoring is an executive function, which we depend on for detecting and evaluating the consequences of our behavior. Although event related potentials (ERPs) have revealed the existence of differences after correct and incorrect decisions, it is not known whether there is a trial-by-tr...

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Autores principales: Pardo-Vazquez, Jose L., Padrón, Isabel, Fernández-Rey, José, Acuña, Carlos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3975098/
https://www.ncbi.nlm.nih.gov/pubmed/24734012
http://dx.doi.org/10.3389/fnbeh.2014.00105
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author Pardo-Vazquez, Jose L.
Padrón, Isabel
Fernández-Rey, José
Acuña, Carlos
author_facet Pardo-Vazquez, Jose L.
Padrón, Isabel
Fernández-Rey, José
Acuña, Carlos
author_sort Pardo-Vazquez, Jose L.
collection PubMed
description Performance monitoring is an executive function, which we depend on for detecting and evaluating the consequences of our behavior. Although event related potentials (ERPs) have revealed the existence of differences after correct and incorrect decisions, it is not known whether there is a trial-by-trial representation of the accuracy of the decision. We recorded the electroencephalographic activity (EEG) while participants performed a perceptual discrimination task, with two levels of difficulty, in which they received immediate feedback. Receiver Operating Characteristic (ROC) analyses were used to reveal two components that convey trial-by-trial representations of the correctness of the decisions. Firstly, the performance monitoring-related negativity (PM-N), a negative deflection whose amplitude is higher (more negative) after incorrect trials. Secondly, the performance monitoring-related positivity (PM-P), a positive deflection whose amplitude is higher after incorrect trials. During the time periods corresponding to these components, trials can be accurately categorized as correct or incorrect by looking at the EEG activity; this categorization is more accurate when based on the PM-P. We further show that the difficulty of the discrimination task has a different effect on each component: after easy trials the latency of the PM-N is shorter and the amplitude of the PM-P is higher than after difficult trials. Consistent with previous interpretations of performance-related ERPs, these results suggest a functional differentiation between these components. The PM-N could be related to an automatic error detection system, responsible for fast behavioral corrections of ongoing actions, while the PM-P could reflect the difference between expected and actual outcomes and be related to long-term changes in the decision process.
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spelling pubmed-39750982014-04-14 EEG activity represents the correctness of perceptual decisions trial-by-trial Pardo-Vazquez, Jose L. Padrón, Isabel Fernández-Rey, José Acuña, Carlos Front Behav Neurosci Neuroscience Performance monitoring is an executive function, which we depend on for detecting and evaluating the consequences of our behavior. Although event related potentials (ERPs) have revealed the existence of differences after correct and incorrect decisions, it is not known whether there is a trial-by-trial representation of the accuracy of the decision. We recorded the electroencephalographic activity (EEG) while participants performed a perceptual discrimination task, with two levels of difficulty, in which they received immediate feedback. Receiver Operating Characteristic (ROC) analyses were used to reveal two components that convey trial-by-trial representations of the correctness of the decisions. Firstly, the performance monitoring-related negativity (PM-N), a negative deflection whose amplitude is higher (more negative) after incorrect trials. Secondly, the performance monitoring-related positivity (PM-P), a positive deflection whose amplitude is higher after incorrect trials. During the time periods corresponding to these components, trials can be accurately categorized as correct or incorrect by looking at the EEG activity; this categorization is more accurate when based on the PM-P. We further show that the difficulty of the discrimination task has a different effect on each component: after easy trials the latency of the PM-N is shorter and the amplitude of the PM-P is higher than after difficult trials. Consistent with previous interpretations of performance-related ERPs, these results suggest a functional differentiation between these components. The PM-N could be related to an automatic error detection system, responsible for fast behavioral corrections of ongoing actions, while the PM-P could reflect the difference between expected and actual outcomes and be related to long-term changes in the decision process. Frontiers Media S.A. 2014-03-28 /pmc/articles/PMC3975098/ /pubmed/24734012 http://dx.doi.org/10.3389/fnbeh.2014.00105 Text en Copyright © 2014 Pardo-Vazquez, Padrón, Fernández-Rey and Acuña. http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Neuroscience
Pardo-Vazquez, Jose L.
Padrón, Isabel
Fernández-Rey, José
Acuña, Carlos
EEG activity represents the correctness of perceptual decisions trial-by-trial
title EEG activity represents the correctness of perceptual decisions trial-by-trial
title_full EEG activity represents the correctness of perceptual decisions trial-by-trial
title_fullStr EEG activity represents the correctness of perceptual decisions trial-by-trial
title_full_unstemmed EEG activity represents the correctness of perceptual decisions trial-by-trial
title_short EEG activity represents the correctness of perceptual decisions trial-by-trial
title_sort eeg activity represents the correctness of perceptual decisions trial-by-trial
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3975098/
https://www.ncbi.nlm.nih.gov/pubmed/24734012
http://dx.doi.org/10.3389/fnbeh.2014.00105
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