Evidence map›Paper›PMID 26138795›Full record

ArticleNature communications2015

Cerebral complexity preceded enlarged brain size and reduced olfactory bulbs in Old World monkeys.

Lauren A Gonzales, Brenda R Benefit, Monte L McCrossin, Fred Spoor

Abstract read
In one paragraph

Article in Nature communications, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Article
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  5. Review
  6. Article
  7. Non-human primate models of focal cortical ischemia for neuronal replacement therapy.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
    Review
  8. Review
  9. How the evolution of air breathing shaped hippocampal function.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Article
  10. Evolution of prefrontal cortex.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
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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

4 authors.

Lauren A GonzalesDepartment of Evolutionary Anthropology, Duke University, 104 Biological Sciences Building, Box 90383, Durham, North Carolina 27708-9976, USA.
Brenda R BenefitDepartment of Anthropology, New Mexico State University, PO Box 30001, Las Cruces, New Mexico 88003-8001, USA.
Monte L McCrossinDepartment of Anthropology, New Mexico State University, PO Box 30001, Las Cruces, New Mexico 88003-8001, USA.
Fred Spoor1] Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig 04103, Germany [2] Department of Cell and Developmental Biology, UCL, Gower Street, London WC1E 6BT, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Analysis of the only complete early cercopithecoid (Old World monkey) endocast currently known, that of 15-million-year (Myr)-old Victoriapithecus, reveals an unexpectedly small endocranial volume (ECV) relative to body size and a large olfactory bulb volume relative to ECV, similar to extant lemurs and Oligocene anthropoids. However, the Victoriapithecus brain has principal and arcuate sulci of the frontal lobe not seen in the stem catarrhine Aegyptopithecus, as well as a distinctive cercopithecoid pattern of gyrification, indicating that cerebral complexity preceded encephalization in cercopithecoids. Since larger ECVs, expanded frontal lobes, and reduced olfactory bulbs are already present in the 17- to 18-Myr-old ape Proconsul these features evolved independently in hominoids (apes) and cercopithecoids and much earlier in the former. Moreover, the order of encephalization and brain reorganization was apparently different in hominoids and cercopithecoids, showing that brain size and cerebral organization evolve independently.

Indexed as

Biological EvolutionCercopithecidaeHominidaeAnimalsCerebrumFossilsFrontal LobeOlfactory BulbOrgan SizeSkullTomography, X-Ray Computed

Identifiers

PMID26138795
PMCPMC4506532

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.