Evidence map›Paper›PMID 29545587›Full record

ArticleNature communications2018

Neural basis for categorical boundaries in the primate pre-SMA during relative categorization of time intervals.

Germán Mendoza, Juan Carlos Méndez, Oswaldo Pérez, Luis Prado, Hugo Merchant

Abstract read
In one paragraph

Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Contextual neural dynamics during time perception in the primate ventral premotor cortex.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  9. Article
  10. Article
  11. Pre-supplementary Motor Cortex Mediates Learning Transfer from Perceptual to Motor Timing.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  12. Article
  13. Review
  14. Article
  15. A Second Introduction to the Neurobiology of Interval Timing.Advances in experimental medicine and biology · 2024
    Review
  16. Temporal Information Processing in the Cerebellum and Basal Ganglia.Advances in experimental medicine and biology · 2024
    Review
  17. Article
  18. The neural bases for timing of durations.Nature reviews. Neuroscience · 2022
    Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Germán MendozaInstituto de Neurobiología, UNAM, Campus Juriquilla, Queretaro, 76230, Mexico.ORCID http://orcid.org/0000-0001-9856-5349
Juan Carlos MéndezInstituto de Neurobiología, UNAM, Campus Juriquilla, Queretaro, 76230, Mexico.
Oswaldo PérezInstituto de Neurobiología, UNAM, Campus Juriquilla, Queretaro, 76230, Mexico.
Luis PradoInstituto de Neurobiología, UNAM, Campus Juriquilla, Queretaro, 76230, Mexico.
Hugo MerchantInstituto de Neurobiología, UNAM, Campus Juriquilla, Queretaro, 76230, Mexico. hugomerchant@unam.mx.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

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.

Indexed as

AnimalsChoice BehaviorDiscrimination, PsychologicalMacaca mulattaMaleMotor CortexNeuronsTime Perception

Identifiers

PMID29545587
PMCPMC5854627

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.