Whole-brain neural similarity between children is the same for same-gender and different-gender pairs¶
Claim · All claims
Evidence · 1 study · associationalr2·q3
Currency · newest study 2019 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2024: baselines and conditions change
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q3 i? Subtracting different-gender from same-gender child-to-child similarity maps revealed no regions differing from zero, and regions of strong neural similarity were identical across same- and different-gender comparisons. → Kersey 2019
Evidence¶
Kersey 2019¶
Kersey, A. J., Csumitta, K. D., & Cantlon, J. F. (2019). Gender similarities in the brain during mathematics development. npj Science of Learning 4:19. https://doi.org/10.1038/s41539-019-0057-x
q3 · i? · associational · r2
One-sample t tests on same-gender minus different-gender intersubject-correlation difference maps across the child sample, with average similarity thresholds of r(500) ≥ 0.115, p ≤ 0.01. The article concludes children's neural activity patterns reflect one heterogeneous group rather than two gender groups.
"This whole-brain t test revealed no regions that showed a difference in neural activity (threshold: t(103) ≥ 2.62, voxel-wise p ≤ 0.01, corrected to p < 0.05 with a cluster threshold of 19 voxels)."
Discussion¶
Learner Variables¶
- Gender — predictor: outcomes differ by group: a gap reflecting circumstances and treatment, not a cause
Related Claims¶
- Bayesian analysis finds substantial evidence for gender similarities in neural maturity in most of the brain, with fewer than 1% of voxels supporting gender differences — related
- Within the number processing network, girls and boys show statistical equivalence in neural maturity and no variance differences — related
- In one small right posterior parietal region, girls showed greater neural variance than boys at equal mean activation — related
- Boys and girls show statistically equivalent neural maturity throughout the brain during mathematics video viewing — related
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