Hypothesis regarding the relation between the nutritive organs and the brain—Perversion of the instincts relating to nutrition—Pathology of hunger and thirst—Proofs furnished of the priority of these tendencies in relation to pleasure and pain—Facts in support of this—Negative tendency; disgust—Its biological value as a protective instinct.
CHAPTER I. · THE INSTINCT OF CONSERVATION IN ITS PHYSIOLOGICAL FORM 199
From The Psychology of the Emotions by Théodule Ribot.
