Evidence map›Paper›PMID 21826061›Full record

SynthesisMolecular psychiatry2011

Genome-wide association studies establish that human intelligence is highly heritable and polygenic.

G Davies, A Tenesa, A Payton, J Yang, S E Harris, D Liewald, X Ke, S Le Hellard, A Christoforou, M Luciano and 22 more

Abstract readMeta-Analysis
In one paragraph

Synthesis in Molecular psychiatry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 263 papers, 13 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
263citing papers in PubMed, 13 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

263 citing papers in PubMed, 13 syntheses or guidelines pooled it.

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  6. Independent evidence for an association between general cognitive ability and a genetic locus for educational attainment.American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics · 2015
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  10. Common genetic variants associated with cognitive performance identified using the proxy-phenotype method.Proceedings of the National Academy of Sciences of the United States of America · 2014
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  20. Foods (Basel, Switzerland) · 2025
    Article

203 more citing papers are in PubMed but not listed here.

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

32 authors.

G DaviesDepartment of Psychology, University of Edinburgh, Edinburgh, Scotland, UK.
A Tenesa
A Payton
J Yang
S E Harris
D Liewald
X Ke
S Le Hellard
A Christoforou
M Luciano
K McGhee
L Lopez
A J Gow
J Corley
P Redmond
H C Fox
P Haggarty
L J Whalley
G McNeill
M E Goddard
T Espeseth
A J Lundervold
I Reinvang
A Pickles
V M Steen
W Ollier
D J Porteous
M Horan
J M Starr
N Pendleton
P M Visscher
I J Deary

Funding

Biotechnology and Biological Sciences Research Council BB/F019394/1Biotechnology and Biological Sciences Research Council BB/F022441/1Biotechnology and Biological Sciences Research Council SAG09977Chief Scientist Office CZB/4/505Chief Scientist Office ETM/55Medical Research Council G0100594Medical Research Council G0400546Medical Research Council G0700704Medical Research Council G0700704(84698)Medical Research Council G0901461Wellcome Trust 064359
6 · The paper itself

Abstract

General intelligence is an important human quantitative trait that accounts for much of the variation in diverse cognitive abilities. Individual differences in intelligence are strongly associated with many important life outcomes, including educational and occupational attainments, income, health and lifespan. Data from twin and family studies are consistent with a high heritability of intelligence, but this inference has been controversial. We conducted a genome-wide analysis of 3511 unrelated adults with data on 549,692 single nucleotide polymorphisms (SNPs) and detailed phenotypes on cognitive traits. We estimate that 40% of the variation in crystallized-type intelligence and 51% of the variation in fluid-type intelligence between individuals is accounted for by linkage disequilibrium between genotyped common SNP markers and unknown causal variants. These estimates provide lower bounds for the narrow-sense heritability of the traits. We partitioned genetic variation on individual chromosomes and found that, on average, longer chromosomes explain more variation. Finally, using just SNP data we predicted ∼1% of the variance of crystallized and fluid cognitive phenotypes in an independent sample (P=0.009 and 0.028, respectively). Our results unequivocally confirm that a substantial proportion of individual differences in human intelligence is due to genetic variation, and are consistent with many genes of small effects underlying the additive genetic influences on intelligence.

Indexed as

Genome, HumanAdolescentAdultAgedAged, 80 and overChildCohort StudiesFemaleGenome-Wide Association StudyHumansIntelligenceLongitudinal StudiesMaleMiddle AgedMultifactorial InheritancePolymorphism, Single Nucleotide

Identifiers

PMID21826061
PMCPMC3182557

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.