Post-interval EEG activity is related to task-goals in temporal discrimination.

Studies investigating the neural mechanisms of time perception often measure brain activity while participants perform a temporal task. However, several of these studies are based exclusively on tasks in which time is relevant, making it hard to dissociate activity related to decisions about time fr...

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Autores principales:	Fernanda Dantas Bueno, André Mascioli Cravo
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a0157093327a47e79e6ad4212cbdad75
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id	oai:doaj.org-article:a0157093327a47e79e6ad4212cbdad75
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spelling	oai:doaj.org-article:a0157093327a47e79e6ad4212cbdad752021-12-02T20:06:09ZPost-interval EEG activity is related to task-goals in temporal discrimination.1932-620310.1371/journal.pone.0257378https://doaj.org/article/a0157093327a47e79e6ad4212cbdad752021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0257378https://doaj.org/toc/1932-6203Studies investigating the neural mechanisms of time perception often measure brain activity while participants perform a temporal task. However, several of these studies are based exclusively on tasks in which time is relevant, making it hard to dissociate activity related to decisions about time from other task-related patterns. In the present study, human participants performed a temporal or color discrimination task of visual stimuli. Participants were informed which magnitude they would have to judge before or after presenting the two stimuli (S1 and S2) in different blocks. Our behavioral results showed, as expected, that performance was better when participants knew beforehand which magnitude they would judge. Electrophysiological data (EEG) was analysed using Linear Discriminant Contrasts (LDC) and a Representational Similarity Analysis (RSA) approach to investigate whether and when information about time and color was encoded. During the presentation of S1, we did not find consistent differences in EEG activity as a function of the task. On the other hand, during S2, we found that temporal and color information was encoded in a task-relevant manner. Taken together, our results suggest that task goals strongly modulate decision-related information in EEG activity.Fernanda Dantas BuenoAndré Mascioli CravoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 9, p e0257378 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fernanda Dantas Bueno André Mascioli Cravo Post-interval EEG activity is related to task-goals in temporal discrimination.
description	Studies investigating the neural mechanisms of time perception often measure brain activity while participants perform a temporal task. However, several of these studies are based exclusively on tasks in which time is relevant, making it hard to dissociate activity related to decisions about time from other task-related patterns. In the present study, human participants performed a temporal or color discrimination task of visual stimuli. Participants were informed which magnitude they would have to judge before or after presenting the two stimuli (S1 and S2) in different blocks. Our behavioral results showed, as expected, that performance was better when participants knew beforehand which magnitude they would judge. Electrophysiological data (EEG) was analysed using Linear Discriminant Contrasts (LDC) and a Representational Similarity Analysis (RSA) approach to investigate whether and when information about time and color was encoded. During the presentation of S1, we did not find consistent differences in EEG activity as a function of the task. On the other hand, during S2, we found that temporal and color information was encoded in a task-relevant manner. Taken together, our results suggest that task goals strongly modulate decision-related information in EEG activity.
format	article
author	Fernanda Dantas Bueno André Mascioli Cravo
author_facet	Fernanda Dantas Bueno André Mascioli Cravo
author_sort	Fernanda Dantas Bueno
title	Post-interval EEG activity is related to task-goals in temporal discrimination.
title_short	Post-interval EEG activity is related to task-goals in temporal discrimination.
title_full	Post-interval EEG activity is related to task-goals in temporal discrimination.
title_fullStr	Post-interval EEG activity is related to task-goals in temporal discrimination.
title_full_unstemmed	Post-interval EEG activity is related to task-goals in temporal discrimination.
title_sort	post-interval eeg activity is related to task-goals in temporal discrimination.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/a0157093327a47e79e6ad4212cbdad75
work_keys_str_mv	AT fernandadantasbueno postintervaleegactivityisrelatedtotaskgoalsintemporaldiscrimination AT andremasciolicravo postintervaleegactivityisrelatedtotaskgoalsintemporaldiscrimination
_version_	1718375442177589248

Post-interval EEG activity is related to task-goals in temporal discrimination.

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