> Psychology, psychiatry, and neuroscience all inform one another. I totally agree. I'm not making any claims about the validity or worth of psychology, I just

> Psychology, psychiatry, and neuroscience all inform one another. I totally agree. I'm not making any claims about the validity or worth of psychology, I just think the distinction OP was referring to is worth pointing out. I think ideally we would understand everything from a physiological perspective, but until that time comes there are plenty of cases where we can benefit from acting on imperfect information. An imperfect example: I don't believe the mechanism that SSRI medicines work on is well understood, but for a lot of people they are obviously beneficial.