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...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2021-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0257378 |
| _version_ | 1798032849805246464 |
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| author | Fernanda Dantas Bueno André Mascioli Cravo |
| author_facet | Fernanda Dantas Bueno André Mascioli Cravo |
| author_sort | Fernanda Dantas Bueno |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-04-11T20:20:20Z |
| format | Article |
| id | doaj.art-a0157093327a47e79e6ad4212cbdad75 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-11T20:20:20Z |
| publishDate | 2021-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-a0157093327a47e79e6ad4212cbdad752022-12-22T04:04:49ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-01169e025737810.1371/journal.pone.0257378Post-interval EEG activity is related to task-goals in temporal discrimination.Fernanda Dantas BuenoAndré Mascioli CravoStudies 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.https://doi.org/10.1371/journal.pone.0257378 |
| spellingShingle | Fernanda Dantas Bueno André Mascioli Cravo Post-interval EEG activity is related to task-goals in temporal discrimination. PLoS ONE |
| title | 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_short | 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 |
| url | https://doi.org/10.1371/journal.pone.0257378 |
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