Yeah, definitely early days and small studies due to the war on drugs and schedule 1 status.

Talk therapy while under the influence seems to be key. Psychedelics cause sudden bursts of neuron growth. Without any intention maintained throughout there is no control over that growth. By keeping the subject on track talking about the change they want to make and why they want to make that change it focuses the neuron growth in productive ways.

If your friends all got high and watched Ren and Stimpy what part of their brain was growing?