Pupil Dilation in the Simon Task as a Marker of Conflict Processing
Cognitive demands in response conflict paradigms trigger negative affect and avoidance behavior. However, not all response conflict studies show increases in physiological indices of emotional arousal, such as pupil diameter. In contrast to earlier null-results, this study shows for the first time t...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2013-05-01
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| Series: | Frontiers in Human Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnhum.2013.00215/full |
| _version_ | 1818260312833392640 |
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| author | Henk eVan Steenbergen Henk eVan Steenbergen Guido P H Band Guido P H Band |
| author_facet | Henk eVan Steenbergen Henk eVan Steenbergen Guido P H Band Guido P H Band |
| author_sort | Henk eVan Steenbergen |
| collection | DOAJ |
| description | Cognitive demands in response conflict paradigms trigger negative affect and avoidance behavior. However, not all response conflict studies show increases in physiological indices of emotional arousal, such as pupil diameter. In contrast to earlier null-results, this study shows for the first time that small (about 0.02 mm) conflict-related pupil dilation can be observed in a Simon task when stimuli do not introduce a light reflex. Results show that response-conflict in Simon trials induces both pupil dilation and reaction-time costs. Moreover, sequential analyses reveal that pupil dilation mirrors the conflict-adaptation pattern observed in reaction time. Although single-trial regression analyses indicated that pupil dilation is likely to reflect more than one process at the same time, in general our findings imply that pupil dilation can be used as an indirect marker of conflict processing. |
| first_indexed | 2024-12-12T18:29:20Z |
| format | Article |
| id | doaj.art-7f0e2cac1aa94f00b0639deb46d8b72e |
| institution | Directory Open Access Journal |
| issn | 1662-5161 |
| language | English |
| last_indexed | 2024-12-12T18:29:20Z |
| publishDate | 2013-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Human Neuroscience |
| spelling | doaj.art-7f0e2cac1aa94f00b0639deb46d8b72e2022-12-22T00:15:57ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612013-05-01710.3389/fnhum.2013.0021545119Pupil Dilation in the Simon Task as a Marker of Conflict ProcessingHenk eVan Steenbergen0Henk eVan Steenbergen1Guido P H Band2Guido P H Band3Leiden UniversityLeiden Institute for Brain and CognitionLeiden UniversityLeiden Institute for Brain and CognitionCognitive demands in response conflict paradigms trigger negative affect and avoidance behavior. However, not all response conflict studies show increases in physiological indices of emotional arousal, such as pupil diameter. In contrast to earlier null-results, this study shows for the first time that small (about 0.02 mm) conflict-related pupil dilation can be observed in a Simon task when stimuli do not introduce a light reflex. Results show that response-conflict in Simon trials induces both pupil dilation and reaction-time costs. Moreover, sequential analyses reveal that pupil dilation mirrors the conflict-adaptation pattern observed in reaction time. Although single-trial regression analyses indicated that pupil dilation is likely to reflect more than one process at the same time, in general our findings imply that pupil dilation can be used as an indirect marker of conflict processing.http://journal.frontiersin.org/Journal/10.3389/fnhum.2013.00215/fullArousalcognitive controlanterior cingulate cortexeffortconflict processingAversion |
| spellingShingle | Henk eVan Steenbergen Henk eVan Steenbergen Guido P H Band Guido P H Band Pupil Dilation in the Simon Task as a Marker of Conflict Processing Frontiers in Human Neuroscience Arousal cognitive control anterior cingulate cortex effort conflict processing Aversion |
| title | Pupil Dilation in the Simon Task as a Marker of Conflict Processing |
| title_full | Pupil Dilation in the Simon Task as a Marker of Conflict Processing |
| title_fullStr | Pupil Dilation in the Simon Task as a Marker of Conflict Processing |
| title_full_unstemmed | Pupil Dilation in the Simon Task as a Marker of Conflict Processing |
| title_short | Pupil Dilation in the Simon Task as a Marker of Conflict Processing |
| title_sort | pupil dilation in the simon task as a marker of conflict processing |
| topic | Arousal cognitive control anterior cingulate cortex effort conflict processing Aversion |
| url | http://journal.frontiersin.org/Journal/10.3389/fnhum.2013.00215/full |
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