This is the main contribution to interdisciplinary studies that converge in psychology and biology. It is a key piece inside Darwin `s work. If the well known decay of the compared psychology at the early years of the XX Century- when the evolutionism followers forgot about the behaviors and the psychologists did without anatomy and physiology- diminished briefly influence to the actual contributions, the culmination of the modern etiology has acted in favor for rediscover this extraordinary and even singular text.
What Darwin considers as true expressions are precisely, the reflexes and instincts that suppose not only the innate capacity to react of a determined way, but also the innate acknowledgement of that expression in the others.
A fundamental and unfairly not so known book that deserves to be recognized with major value.
To those evolutionary behavioralists who salivate over "Emotions in Man and Animals," they'll get an even bigger charge reading it alongside "The Great Betrayal: Fraud in Science," by Horace Freeland Judson, which has a nice expose of Darwin's fraudulent photos. Behavioralists will especially love reading about the expressions induced by powerful electrical shocks to the heads of mental patients. Of course, Darwin had the electrodes painted out of the photos; but then, This is Science! Other photos are actually paintings, and most are staged, not spontaneous. "Emotions" is nonetheless a good read, as Darwin could write as well as he lied.
