Int J Neurosci April 2009 PMID 19283594

Whole brain size and general mental ability: a review.

J Philippe Rushton, C Davison Ankney

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Mentions

55
Peak: 2 in Sep 2019
across 4 sources since Aug 2018

Extended reach

44,237
potential audience

Total likes

1,272

Video views

22,944

Mentions per month

Aug 2018 – Jun 2025

Where it's discussed

  • Facebook34 posts
  • X / Twitter14 posts
  • Blogs5 articles
  • YouTube2 videos

AI synopsis

What people are saying

Many discussions involve referencing studies, such as MRI research showing correlations around 0.4 between brain volume and IQ, and debates about racial disparities in brain size, reflecting high interest and engagement. The tone varies from scientific to confrontational, indicating the topic's complexity and societal relevance, which contributes to a nuanced understanding of its impact.

AgreementNeither agree nor disagree

Discussions show mixed opinions, with some posts questioning or referencing the core findings, so overall agreement is neutral.

InterestHigh interest

Participants demonstrate high curiosity, referencing studies, debates, and providing links to original research, indicating strong interest.

EngagementModerate engagement

Posts range from sharing personal opinions to discussing research methods, reflecting moderate but focused engagement.

ImpactModerate impact

The discussions highlight the controversial and potentially impactful nature of brain size and intelligence research, though the overall influence appears moderate.

Abstract in brief

  • The review finds that there is a modest positive correlation between whole brain size and general mental ability (GMA) within humans, with brain imaging studies showing a correlation of about 0.40.
  • External head size measurements show a weaker correlation with GMA, around 0.20, suggesting some relationship but not a strong predictor of intelligence.
  • The article also discusses how factors like age, socioeconomic status, sex, and ancestral background relate to brain size and GMA, and explores these relationships from evolutionary and genetic perspectives.]

Top posts

Most liked on X and Bluesky
14. Louis
@ondorduncului · X

@f4irdrip @GillesDeleuze17 https://t.co/ubkmtQwTkq Al kanka bu araştırmanın referans olarak kullanıldığı makaleler. https://t.co/iEfYDXlYut Bu da onlardan biri. İçeriğe ve yazanları araştırdığımda gözüme yetkin geldiler ama belki diğerlerinin kankasıdır, toplanıp kadın düşmanlığı yapmışlardır kekw

Oct 9, 2022 · 3 likes · 37 followers View post →
Holtz
@Biorealism · X

@MemeMagician97 Yep. Covered here. https://t.co/thyMhZxdPL

Dec 13, 2020 · 1 like · 8,991 followers View post →
HuntingIsland — ΞTH
@IslandHunting · X

@MMMalign @laurent_fourier @Delicious_Tacos So Scott believes that brain size has some correlation to IQ? Is that now a cancel-worthy belief? https://t.co/NUHBQlEgBi https://t.co/UN5rPEvUcK https://t.co/CjCuRRsB6q

Jun 19, 2020 · 1 like · 6,434 followers View post →
Euphoriial0ve
@Euphoriial0ve · X

https://t.co/46EWHabAwW https://t.co/xBm30QTkBi https://t.co/jH37UN4HEi

Sep 16, 2019 · 1 like · 1,682 followers View post →
Euphoriial0ve
@Euphoriial0ve · X

@vans_des @yemargent @DorisNgankou Si jamais les hommes sont en moyenne plus intelligent que les femme

Sep 16, 2019 · 1,682 followers View post →
Lycurguien
@MonsieurMartin3 · X

@Amal28436460 @phl43 La corrélation entre les deux est pourtant non négligeable https://t.co/rxLJ9TxRQP Chez les rats, Anderson (1993) trouve une corrélation de r = 0,48 entre le poids du cerveau à l’autopsie et le GMA ‘extrait’ des divers tests cognitifs.

Mar 31, 2019 · 761 followers View post →

All mentions

Rei Filósofo
@Reidafilosofia · X

@jojobadeuva @Geilson28694777 @jameswebb_nasa Todo negacionista esquerdoso utiliza emocionalismo... As múltiplas inteligências estão positivamente correlacionadas ao fator G, do qual qi é apenas uma métrica. O QI não é apenas um traço emergente, mas tem uma base neural distribuída pelo cérebro. https://t.co/dWEN7XEwKI

Jun 5, 2025 · 727 followers View post →
we wuz kangs
@bigbonahjonah_ · X

@RealOshunOya @TheOneSt4r @rihfile59644 @Floyde_Kneeler @WawaCrackhead @literallymikeb @Boyd51916882 @theAItroll @master_78130 @FadedSaint9 @_Re_UPS @TheWhiteMan69 @MikeCal40536473 @defnotegoad @TammyBear202 @Idfollowem @lak3rgang247 @dolturd @G_r678 Not enough? Rushton, J. P., & Ankney, C. D. (2009). Whole brain size and general mental ability: A review. International Journal of Neuroscience, 119(5), 691–731. Henneberg, M., & Steyn, M. (1993). Trends in cranial capacity in Southern African populations. South African Journal

May 17, 2025 · 79 followers View post →
DeimosEidt
@DeimosEidt · X

@UnoMilleFire A relação entre cérebro e QI é causal. Dentro da mesma família, irmãos com cérebros maiores tendem a ter QIs mais altos. Esse achado elimina fatores ambientais compartilhados e reforça a influência genética. https://t.co/bwHbnbwRkO

Mar 4, 2025 · 90 followers View post →
DeimosEidt
@DeimosEidt · X

@UnoMilleFire O tamanho do cérebro tem relação com a inteligência. Estudos com MRI mostram que existe uma correlação de até 0,4 entre volume cerebral e QI. Essa evidência é replicável e confirma a base biológica https://t.co/0SrXHwF6rQ https://t.co/OMcPOiLzFe… https://t.co/Z1nYAnRhjO…

Mar 4, 2025 · 90 followers View post →
Matthew Ownwill
@soderfragga · X

@schprotes @AlexZap14 @fifistigovna Ну так если подобные исследования буквально запрещаются, откуда взяться цифрам?Но по тем обрывкам, что есть отличия - в объеме мозга реальны,(∆≈100g),лобная доля в среднем сильнее всего отличается между расами-она отвечает как раз за просчет последствий https://t.co/CpNgOEBeGB

Jan 26, 2025 · 111 followers View post →
Goku
@GokuKingChad · X

@aaronpaul64 @9mm_smg Here is a link to the original study, not the blog that summarizes it https://t.co/Ul1tj1AfTn

Mar 11, 2024 · 60 followers View post →
Pennywise Fren
@PennyWiseFren · X

Whole Brain Size and General Mental Ability: A Review https://t.co/T3UqljtdYk African Blacks Average IQ 67 The average IQ of sub-Saharan Africans Intelligence 38 (2010) 21–29 Richard Lynn and Gerhard Meisenberg September 25, 2009 https://t.co/j0LJtxgkmh • https://t.co/bzaJ4eDiQ9

Dec 19, 2022 · 513 followers View post →
14. Louis
@ondorduncului · X

@f4irdrip @GillesDeleuze17 https://t.co/ubkmtQwTkq Al kanka bu araştırmanın referans olarak kullanıldığı makaleler. https://t.co/iEfYDXlYut Bu da onlardan biri. İçeriğe ve yazanları araştırdığımda gözüme yetkin geldiler ama belki diğerlerinin kankasıdır, toplanıp kadın düşmanlığı yapmışlardır kekw

Oct 9, 2022 · 3 likes · 37 followers View post →
Holtz
@Biorealism · X

@MemeMagician97 Yep. Covered here. https://t.co/thyMhZxdPL

Dec 13, 2020 · 1 like · 8,991 followers View post →
DDPS
@James75012099 · X

@thestephaniewat @ASPIRE_TOWARDS @populismb4 @eirelives Racial brain size differences: Whole Brain Size and General Mental Ability: A Review, Int J Neurosci. 2009 Apr; 119(5): 692–732, PMCID: PMC2668913 Rutgers Anthropologist Sets Record Straight on Brain Size and Race

Aug 11, 2020 · 36 followers View post →
HuntingIsland — ΞTH
@IslandHunting · X

@MMMalign @laurent_fourier @Delicious_Tacos So Scott believes that brain size has some correlation to IQ? Is that now a cancel-worthy belief? https://t.co/NUHBQlEgBi https://t.co/UN5rPEvUcK https://t.co/CjCuRRsB6q

Jun 19, 2020 · 1 like · 6,434 followers View post →
Euphoriial0ve
@Euphoriial0ve · X

https://t.co/46EWHabAwW https://t.co/xBm30QTkBi https://t.co/jH37UN4HEi

Sep 16, 2019 · 1 like · 1,682 followers View post →
Euphoriial0ve
@Euphoriial0ve · X

@vans_des @yemargent @DorisNgankou Si jamais les hommes sont en moyenne plus intelligent que les femme

Sep 16, 2019 · 1,682 followers View post →
Lycurguien
@MonsieurMartin3 · X

@Amal28436460 @phl43 La corrélation entre les deux est pourtant non négligeable https://t.co/rxLJ9TxRQP Chez les rats, Anderson (1993) trouve une corrélation de r = 0,48 entre le poids du cerveau à l’autopsie et le GMA ‘extrait’ des divers tests cognitifs.

Mar 31, 2019 · 761 followers View post →