[_tom_]

Wow. If true, that would be fascinating.

We know that non-brain microbiomes can influence behavior. What might something in brain tissue itself do?

[debacle]

Influence behavior.

[krackers]

You can look at toxoplasmosis as an example, synthesizes dopamine and is somehow able to selectively modulate attraction to predators.

[ertgbnm]

Somehow the brain microbiome is only able to influence the gut.

[layer8]

My gut tells me that the gut influences behavior.