Not quite correct. Both psychiatrists and psychologists study the brain and mind. For a psychiatrist, there is 1 year of internship and 3 years of residency. Depending on ones area of interest, a psychiatrist may be more involved with issues of the mind. Depending on ones area of interest, a psychologist may be more focused on the brain. In fact, some psychologists complete sub specialty training and study pathophysiology, human anatomy, biochemistry, neuroscience, physical examination, pharmacology, and psychopharmacology. Some psychiatrists complete subspecialty training in psychoanalysis, child, geriatrics, etc. Not to mention combined residency programs, i.e. internal med/psychiatry, etc.
I think it is most beneficial to state what one does in the linguistically positive. Example: As a psychologist, I am involved in neuropsychological testing, conduct child custody evaluations, teach anger management classes, prescribe medication, and conduct research. There does not seem to be a need to state things in the linguistically negative. Example: As a psychologist, I do assessments and therapy, I dont do surgery, dentistry, osteopathic manipulative therapy, fly airplanes, dig ditches,practice law, or make referrals to sex surrogates. It seems inappropriate to conceptualize a profession by what they dont do, i.e. psychiatrists dont do therapy -ah, my friend, MDs can perform therapy and yes there are some who do, maybe not 100%, but, they are out there., psychologists dont prescribe medication. Identifying what a profession does in the linguistically negative seems strange, not to mention all of the inaccuracies with overgeneralizations. Overall, I still like LMO2s response.