Slow potentials in time estimation: The role of temporal accumulation and habituation
Numerous studies have shown that contingent negative variation (CNV) measured at fronto-central and parietal-central areas is closely related to interval timing. However, the exact nature of the relation between CNV and the underlying timing mechanisms is still a topic of discussion. On the one hand...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2011-09-01
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| Series: | Frontiers in Integrative Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnint.2011.00048/full |
| _version_ | 1811230109434118144 |
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| author | Tadeusz W. Kononowicz Hedderik eVan Rijn |
| author_facet | Tadeusz W. Kononowicz Hedderik eVan Rijn |
| author_sort | Tadeusz W. Kononowicz |
| collection | DOAJ |
| description | Numerous studies have shown that contingent negative variation (CNV) measured at fronto-central and parietal-central areas is closely related to interval timing. However, the exact nature of the relation between CNV and the underlying timing mechanisms is still a topic of discussion. On the one hand, it has been proposed that the CNV measured at supplementary motor area (SMA) is a direct reflection of the unfolding of time since a perceived onset, whereas other work has suggested that the increased amplitude reflects decision processes involved in interval timing. Strong evidence for the first view has been reported by Macar, Vidal and Casini (1999), who showed that variations in temporal performance were reflected in the measured CNV amplitude. If the CNV measured at SMA is a direct function of the passing of time, habituation effects are not expected. Here we report two replication studies, which both failed to replicate the expected performance-dependent variations. Even more powerful linear-mixed effect analyses failed to find any performance related effects on the CNV amplitude, whereas habituation effects were found. These studies therefore suggest that the CNV amplitude does not directly reflect the unfolding of time |
| first_indexed | 2024-04-12T10:24:40Z |
| format | Article |
| id | doaj.art-3ce343f4c2a042ad9c71e40e5b99114a |
| institution | Directory Open Access Journal |
| issn | 1662-5145 |
| language | English |
| last_indexed | 2024-04-12T10:24:40Z |
| publishDate | 2011-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Integrative Neuroscience |
| spelling | doaj.art-3ce343f4c2a042ad9c71e40e5b99114a2022-12-22T03:37:00ZengFrontiers Media S.A.Frontiers in Integrative Neuroscience1662-51452011-09-01510.3389/fnint.2011.0004812241Slow potentials in time estimation: The role of temporal accumulation and habituationTadeusz W. Kononowicz0Hedderik eVan Rijn1University of GroningenUniversity of GroningenNumerous studies have shown that contingent negative variation (CNV) measured at fronto-central and parietal-central areas is closely related to interval timing. However, the exact nature of the relation between CNV and the underlying timing mechanisms is still a topic of discussion. On the one hand, it has been proposed that the CNV measured at supplementary motor area (SMA) is a direct reflection of the unfolding of time since a perceived onset, whereas other work has suggested that the increased amplitude reflects decision processes involved in interval timing. Strong evidence for the first view has been reported by Macar, Vidal and Casini (1999), who showed that variations in temporal performance were reflected in the measured CNV amplitude. If the CNV measured at SMA is a direct function of the passing of time, habituation effects are not expected. Here we report two replication studies, which both failed to replicate the expected performance-dependent variations. Even more powerful linear-mixed effect analyses failed to find any performance related effects on the CNV amplitude, whereas habituation effects were found. These studies therefore suggest that the CNV amplitude does not directly reflect the unfolding of timehttp://journal.frontiersin.org/Journal/10.3389/fnint.2011.00048/fullhabituationaccumulatorinterval timingContingent Negative Variation (CNV)performance-dependent variationspulse accumulation |
| spellingShingle | Tadeusz W. Kononowicz Hedderik eVan Rijn Slow potentials in time estimation: The role of temporal accumulation and habituation Frontiers in Integrative Neuroscience habituation accumulator interval timing Contingent Negative Variation (CNV) performance-dependent variations pulse accumulation |
| title | Slow potentials in time estimation: The role of temporal accumulation and habituation |
| title_full | Slow potentials in time estimation: The role of temporal accumulation and habituation |
| title_fullStr | Slow potentials in time estimation: The role of temporal accumulation and habituation |
| title_full_unstemmed | Slow potentials in time estimation: The role of temporal accumulation and habituation |
| title_short | Slow potentials in time estimation: The role of temporal accumulation and habituation |
| title_sort | slow potentials in time estimation the role of temporal accumulation and habituation |
| topic | habituation accumulator interval timing Contingent Negative Variation (CNV) performance-dependent variations pulse accumulation |
| url | http://journal.frontiersin.org/Journal/10.3389/fnint.2011.00048/full |
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