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[–]Aquadog 4 insightful - 1 fun4 insightful - 0 fun5 insightful - 1 fun -  (0 children)

I'm not totally trashing them, but they are unreliable as markers for a lot of things-mental illness included. For example, people with schizophrenia may have some structures that are under developed, while other people might have brains that look totally healthy and normal. They can show bursts of activity when not much might be happening at all: https://pubmed.ncbi.nlm.nih.gov/27357684/

There's also been evidence that the software used as benchmark to analyze these fMRIs may show false positive rates up to 70%. While fMRIs are a good tool, they are not gold standard for predicting behaviours.