Friday, July 05, 2024

Male and Female Brains

I have not seen commentary or refutation of this paper, so I don't really know if it has weaknesses.

Deep learning models reveal replicable, generalizable, and behaviorally relevant sex differences in human functional brain organization

Our stDNN model accurately differentiated male and female brains, demonstrating consistently high cross-validation accuracy (>90%), replicability, and generalizability across multisession data from the same individuals and three independent cohorts (N ~ 1,500 young adults aged 20 to 35). Explainable AI (XAI) analysis revealed that brain features associated with the default mode network, striatum, and limbic network consistently exhibited significant sex differences (effect sizes > 1.5) across sessions and independent cohorts. Furthermore, XAI-derived brain features accurately predicted sex-specific cognitive profiles, a finding that was also independently replicated. Our results demonstrate that sex differences in functional brain dynamics are not only highly replicable and generalizable but also behaviorally relevant, challenging the notion of a continuum in male-female brain organization.

2 comments:

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  2. I was going to respond to that. Darn. I think I know who it is.

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