Evidence map›Paper›PMID 26627234›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2015

Relaxed genetic control of cortical organization in human brains compared with chimpanzees.

Aida Gómez-Robles, William D Hopkins, Steven J Schapiro, Chet C Sherwood

Abstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 1 pooled it
–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

53 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  11. From fossils to mind.Communications biology · 2023
    Review
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  14. Functional connectome fingerprinting across the lifespan.Network neuroscience (Cambridge, Mass.) · 2023
    Article
  15. Variability of the Surface Area of the V1, V2, and V3 Maps in a Large Sample of Human Observers.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
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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.

Aida Gómez-RoblesDepartment of Anthropology, The George Washington University, Washington, DC 20052; Center for the Advanced Study of Human Paleobiology, The George Washington University, Washington, DC 20052; aidagomezr@yahoo.es.
William D HopkinsNeuroscience Institute, Georgia State University, Atlanta, GA 30302; Division of Developmental and Cognitive Neuroscience, Yerkes National Primate Research Center, Atlanta, GA 30322;
Steven J SchapiroDepartment of Veterinary Sciences, The University of Texas MD Anderson Cancer Center, Bastrop, TX 78602.
Chet C SherwoodDepartment of Anthropology, The George Washington University, Washington, DC 20052; Center for the Advanced Study of Human Paleobiology, The George Washington University, Washington, DC 20052;

Funding

Mapping the Human Connectome: Structure, Function, and HeritabilityU54MH091657 · NIMH · WASHINGTON UNIVERSITY · PI UGURBIL, KAMIL, VAN ESSEN, DAVID C · 2010 to 2014
$34.7M
The National Center for Chimpanzee CareU42OD011197 · OD · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI ABEE, CHRISTIAN R · 2012 to 2019
$19.7M
Hemispheric Specialization and CommunicationR01NS042867 · NINDS · GEORGIA STATE UNIVERSITY · PI HOPKINS, WILLIAM D · 2002 to 2015
$3.3M
Heritability of Neuroanatomical Asymmetries in PrimatesR01NS073134 · NINDS · GEORGIA STATE UNIVERSITY · PI HOPKINS, WILLIAM D · 2011 to 2014
$1.2M
A National Chimpanzee Brain ResourceR24NS092988 · NINDS · GEORGE WASHINGTON UNIVERSITY · PI SHERWOOD, CHESTER · 2015 to 2018
$969k
NIH HHS U42 OD-011197NIH HHS U42 OD011197NIMH NIH HHS 1U54MH091657NIMH NIH HHS U54 MH091657NINDS NIH HHS NS092988NINDS NIH HHS NS42867NINDS NIH HHS NS73134NINDS NIH HHS R01 NS042867NINDS NIH HHS R01 NS073134NINDS NIH HHS R24 NS092988
6 · The paper itself

Abstract

The study of hominin brain evolution has focused largely on the neocortical expansion and reorganization undergone by humans as inferred from the endocranial fossil record. Comparisons of modern human brains with those of chimpanzees provide an additional line of evidence to define key neural traits that have emerged in human evolution and that underlie our unique behavioral specializations. In an attempt to identify fundamental developmental differences, we have estimated the genetic bases of brain size and cortical organization in chimpanzees and humans by studying phenotypic similarities between individuals with known kinship relationships. We show that, although heritability for brain size and cortical organization is high in chimpanzees, cerebral cortical anatomy is substantially less genetically heritable than brain size in humans, indicating greater plasticity and increased environmental influence on neurodevelopment in our species. This relaxed genetic control on cortical organization is especially marked in association areas and likely is related to underlying microstructural changes in neural circuitry. A major result of increased plasticity is that the development of neural circuits that underlie behavior is shaped by the environmental, social, and cultural context more intensively in humans than in other primate species, thus providing an anatomical basis for behavioral and cognitive evolution.

Indexed as

AdultAnimalsBiological EvolutionBrainBrain MappingCerebral CortexCultural EvolutionEnvironmentFemaleHumansImaging, Three-DimensionalMagnetic Resonance ImagingMaleNeocortexNeuronal PlasticityPan troglodytesaltricialitybrain evolutionhomininsneocortexplasticity

Identifiers

PMID26627234
PMCPMC4672807

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.