Evidence map›Paper›PMID 23671074›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

Human frontal lobes are not relatively large.

Robert A Barton, Chris Venditti

Abstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing 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

51 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
  4. Article
  5. A Comparison of Rapid Rule-Learning Strategies in Humans and Monkeys.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Multilevel atlas comparisons reveal divergent evolution of the primate brain.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  11. Article
  12. Evolution of prefrontal cortex.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022
    Review
  13. Article
  14. Evolution, Emotion, and Episodic Engagement.The American journal of psychiatry · 2021
    Review
  15. A Common Space Approach to Comparative Neuroscience.Annual review of neuroscience · 2021
    Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Genetic Mechanisms Underlying Cortical Evolution in Mammals.Frontiers in cell and developmental biology · 2021
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Robert A BartonEvolutionary Anthropology Research Group, Department of Anthropology, Durham University, Durham DH1 3LE, United Kingdom. r.a.barton@durham.ac.uk
Chris Venditti

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

One of the most pervasive assumptions about human brain evolution is that it involved relative enlargement of the frontal lobes. We show that this assumption is without foundation. Analysis of five independent data sets using correctly scaled measures and phylogenetic methods reveals that the size of human frontal lobes, and of specific frontal regions, is as expected relative to the size of other brain structures. Recent claims for relative enlargement of human frontal white matter volume, and for relative enlargement shared by all great apes, seem to be mistaken. Furthermore, using a recently developed method for detecting shifts in evolutionary rates, we find that the rate of change in relative frontal cortex volume along the phylogenetic branch leading to humans was unremarkable and that other branches showed significantly faster rates of change. Although absolute and proportional frontal region size increased rapidly in humans, this change was tightly correlated with corresponding size increases in other areas and whole brain size, and with decreases in frontal neuron densities. The search for the neural basis of human cognitive uniqueness should therefore focus less on the frontal lobes in isolation and more on distributed neural networks.

Indexed as

Biological EvolutionNerve NetPhylogenyAnimalsBiometryCognitionFrontal LobeHumansLikelihood FunctionsModels, GeneticOrgan SizeRegression AnalysisSpecies Specificitycognitionprefrontal cortexprimates

Identifiers

PMID23671074
PMCPMC3670331

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.