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The duality of temporal encoding – the intrinsic and extrinsic representation of time
While time is well acknowledged for having a fundamental part in our perception, questions on how it is represented are still matters of great debate. One of the main issues in question is whether time is represented intrinsically at the neural level, or is it represented within dedicated brain regi...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2015
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4553368/ https://www.ncbi.nlm.nih.gov/pubmed/26379604 http://dx.doi.org/10.3389/fpsyg.2015.01288 |
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author | Golan, Ronen Zakay, Dan |
author_facet | Golan, Ronen Zakay, Dan |
author_sort | Golan, Ronen |
collection | PubMed |
description | While time is well acknowledged for having a fundamental part in our perception, questions on how it is represented are still matters of great debate. One of the main issues in question is whether time is represented intrinsically at the neural level, or is it represented within dedicated brain regions. We used an fMRI block design to test if we can impose covert encoding of temporal features of faces and natural scenes stimuli within category selective neural populations by exposing subjects to four types of temporal variance, ranging from 0% up to 50% variance. We found a gradual increase in neural activation associated with the gradual increase in temporal variance within category selective areas. A second level analysis showed the same pattern of activations within known brain regions associated with time representation, such as the Cerebellum, the Caudate, and the Thalamus. We concluded that temporal features are integral to perception and are simultaneously represented within category selective regions and globally within dedicated regions. Our second conclusion, drown from our covert procedure, is that time encoding, at its basic level, is an automated process that does not require attention allocated toward the temporal features nor does it require dedicated resources. |
format | Online Article Text |
id | pubmed-4553368 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-45533682015-09-14 The duality of temporal encoding – the intrinsic and extrinsic representation of time Golan, Ronen Zakay, Dan Front Psychol Psychology While time is well acknowledged for having a fundamental part in our perception, questions on how it is represented are still matters of great debate. One of the main issues in question is whether time is represented intrinsically at the neural level, or is it represented within dedicated brain regions. We used an fMRI block design to test if we can impose covert encoding of temporal features of faces and natural scenes stimuli within category selective neural populations by exposing subjects to four types of temporal variance, ranging from 0% up to 50% variance. We found a gradual increase in neural activation associated with the gradual increase in temporal variance within category selective areas. A second level analysis showed the same pattern of activations within known brain regions associated with time representation, such as the Cerebellum, the Caudate, and the Thalamus. We concluded that temporal features are integral to perception and are simultaneously represented within category selective regions and globally within dedicated regions. Our second conclusion, drown from our covert procedure, is that time encoding, at its basic level, is an automated process that does not require attention allocated toward the temporal features nor does it require dedicated resources. Frontiers Media S.A. 2015-08-31 /pmc/articles/PMC4553368/ /pubmed/26379604 http://dx.doi.org/10.3389/fpsyg.2015.01288 Text en Copyright © 2015 Golan and Zakay. http://creativecommons.org/licenses/by/4.0/ 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 | Psychology Golan, Ronen Zakay, Dan The duality of temporal encoding – the intrinsic and extrinsic representation of time |
title | The duality of temporal encoding – the intrinsic and extrinsic representation of time |
title_full | The duality of temporal encoding – the intrinsic and extrinsic representation of time |
title_fullStr | The duality of temporal encoding – the intrinsic and extrinsic representation of time |
title_full_unstemmed | The duality of temporal encoding – the intrinsic and extrinsic representation of time |
title_short | The duality of temporal encoding – the intrinsic and extrinsic representation of time |
title_sort | duality of temporal encoding – the intrinsic and extrinsic representation of time |
topic | Psychology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4553368/ https://www.ncbi.nlm.nih.gov/pubmed/26379604 http://dx.doi.org/10.3389/fpsyg.2015.01288 |
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