Ketamine is legal for doctors to use on humans in most parts of the world, but most humans object to brain biopsies while alive, or injections directly into the brain while the instruments are monitoring what happens in the skull.

That's one reason that the method of action for plenty of approved treatments for mental health can be "???" - human clinical trials mostly check that it's not going to {kill you, make it worse} and works better than placebo, not "what's going on inside this live human brain", until we get better live monitoring non-invasive tooling for this sort of thing in humans.

Unfortunately we don't. Definitely puts a damper on the conclusions. The optogenetic technique involves gene delivery to specific brain cells which is not yet something we're comfortable doing in humans for basic research, although there are a few drugs using this tech in clinical trials

IIRC their brain chemistry is more similar to ours than most other animals.

They do simulations and petri dish testing as well, what would a better method look like?

If you are depressed- buy a horse.

Isnt it wonderfull how we can fix depression now, but nobody has worked on a chemical fix against beeing overly conformist behaviour? No legal drug on the market that cures a lack of rebellion.

Mysterious.

As if what is declared disease and what is declared cure, is dependant upon how usefull it is to society- but wait, rebellion could be usefull for a scientific society too- so its dependant on how adaptable the "cure" makes you for a hierarchic society.

All those pheromones the queen emits, they make the little bees work.

go sign a study protocol and tell us