Journal article
Neural basis for categorical boundaries in the primate pre-SMA during relative categorization of time intervals
- Abstract:
- Perceptual categorization depends on the assignment of different stimuli to specific groups based, in principle, on the notion of flexible categorical boundaries. To determine the neural basis of categorical boundaries, we record the activity of pre-SMA neurons of monkeys executing an interval categorization task in which the limit between short and long categories changes between blocks of trials within a session. A large population of cells encodes this boundary by reaching a constant peak of activity close to the corresponding subjective limit. Notably, the time at which this peak is reached changes according to the categorical boundary of the current block, predicting the monkeys' categorical decision on a trial-by-trial basis. In addition, pre-SMA cells also represent the category selected by the monkeys and the outcome of the decision. These results suggest that the pre-SMA adaptively encodes subjective duration boundaries between short and long durations and contains crucial neural information to categorize intervals and evaluate the outcome of such perceptual decisions.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 1.9MB, Terms of use)
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- Publisher copy:
- 10.1038/s41467-018-03482-8
Authors
- Publisher:
- Springer Nature
- Journal:
- Nature Communications More from this journal
- Volume:
- 9
- Issue:
- 1
- Article number:
- 1098
- Publication date:
- 2018-03-15
- Acceptance date:
- 2018-02-16
- DOI:
- ISSN:
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2041-1723
- Pmid:
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29545587
- Language:
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English
- Keywords:
- Pubs id:
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pubs:830638
- UUID:
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uuid:5358e282-651c-4cc9-9486-a4ae93856917
- Local pid:
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pubs:830638
- Source identifiers:
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830638
- Deposit date:
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2018-03-27
Terms of use
- Copyright holder:
- Mendoza et al
- Copyright date:
- 2018
- Notes:
- Copyright © 2018 The Authors. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
- Licence:
- CC Attribution (CC BY)
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