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by cosmojg 973 days ago
The evidence supporting any specific, direct behavioral function of serotonin in the brain is only marginally more substantial than the evidence supporting any specific, direct behavioral function of serotonin in the gut[1]. If anything, the evidence suggests that the behavioral effects of serotonin are more global and abstract, mediated via downstream effects on other neurotransmitters and circuits controlled chiefly by other neurotransmitters, such that behavioral correlations can only be drawn generally and indirectly.

Your confidence is totally and completely unwarranted.

[1] https://www.ucl.ac.uk/news/2022/jul/no-evidence-depression-c...