Answer:
Please specify.
Psychological effects are any effect that an ingested substance has on your cognition. If it makes you think differently, see differently, hear differently, etc, that's a psychological effect. As to the original question, I'd imagine the psychological effects OF psychological effects to be something along the lines of "Huh, this feels interesting. Hmm, I'm happier all of a sudden. Now I'm kinda angry. Now that tree's sorta dancing, and I'm happy again."