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SCIENCE

The Claim

Women are more likely than men to predominantly use the left hemisphere of the brain, while men are more likely than women to predominantly use the right hemisphere of the brain.

Verified by Lenz ·

The Short Version

The claim is not supported by neuroscience evidence. Research finds some sex differences in specific tasks, regions, or connectivity patterns, but not a general rule that women mainly use the left hemisphere and men mainly use the right. The statement relies on an outdated “left-brain/right-brain” myth and ignores mixed findings, substantial overlap, and evidence of bilateral or cross-hemisphere processing in both sexes.

Caveats

  • “Predominant hemisphere use” is not a standard scientific concept; brain lateralization is function- and network-specific, not a whole-brain trait.
  • Task- or region-level sex differences cannot be generalized into a global male-vs-female brain rule.
  • Popular summaries often oversimplify this topic and can misstate mixed or null findings as settled sex differences.

The Receipts

  1. Laterality Patterns of Brain Functional Connectivity: Gender Effects

    PMC (NeuroImage)

  2. Sex differences in the structural connectome of the human brain - PMC

    PMC (National Center for Biotechnology Information)

  3. Complementarity of Sex Differences in Brain and Behavior - PMC

    PMC (National Center for Biotechnology Information)

  4. Remembering the null hypothesis when searching for brain sex ...

    PMC (PubMed Central)

  5. Sex differences in the functional lateralization of emotion and decision-making

    PubMed Central (NIH)

  6. Recruiting the right hemisphere: Sex differences in inter-hemispheric cooperation

    PubMed Central (NIH)

  7. Language processing is strongly left lateralized in both sexes

    PubMed

  8. Researchers Debunk Myth of "Right-brain" and "Left-brain ...

    University of Utah Health

  9. Gender Differences Are Encoded Differently in the Structure and Function of the Human Brain Revealed through a Multimodal Neuroimaging Data Fusion Approach

    Frontiers in Human Neuroscience

  10. Debunking the Myth of the “Male” and “Female” Brain - BU Blogs

    BU Blogs (Boston University)

+ 5 more sources — see the full list on Lenz

Filed Under

Cerebral Hemisphere Lateralization

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