Psychiatry is all biological and all social. there is no mental function without brain and social context. To ask how much of mind is biological and how much social is as meaningless as to ask how much of the area of a rectangle is due to its width and how much to its height, or how much of the phenotype is due to genes and how much to environment.

Leon Eisenberg (1922-2009) American psychiatrist and medical educator
“The social construction of the human brain,” American Journal of Psychiatry (Nov 1995)