The Age of Psychopharmacology began with a brilliant rise in the 1950s, when for the first time science entered the study of drugs that affect the brain and mind. But, esteemed historian Edward Shorter argues that there has been a recent fall, as the field has seen its drug offerings impoverished and its diagnoses distorted by the "Diagnostic and Statistical Manual of Mental Disorders." The new drugs, such as Prozac, have been less effective than...