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| Hauptseite > Publikationsdatenbank > Cross-ethnicity/race generalization failure of behavioral prediction from resting-state functional connectivity |
| Hauptseite > Publikationsdatenbank > Cross-ethnicity/race generalization failure of behavioral prediction from resting-state functional connectivity |
| Journal Article | FZJ-2022-01698 |
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2022
Assoc.
Washington, DC [u.a.]
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Please use a persistent id in citations: http://hdl.handle.net/2128/30862 doi:10.1126/sciadv.abj1812
Abstract: Algorithmic biases that favor majority populations pose a key challenge to the application of machine learning for precision medicine. Here, we assessed such bias in prediction models of behavioral phenotypes from brain functional magnetic resonance imaging. We examined the prediction bias using two independent datasets (preadolescent versus adult) of mixed ethnic/racial composition. When predictive models were trained on data dominated by white Americans (WA), out-of-sample prediction errors were generally higher for African Americans (AA) than for WA. This bias toward WA corresponds to more WA-like brain-behavior association patterns learned by the models. When models were trained on AA only, compared to training only on WA or an equal number of AA and WA participants, AA prediction accuracy improved but stayed below that for WA. Overall, the results point to the need for caution and further research regarding the application of current brain-behavior prediction models in minority populations.
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