CHAPTER VII.

THE NATURE OF EMOTION 91

Analogy between perception and emotion—Constituent elements of emotion—Summary of the theory of James and Lange—Application of this theory to the higher emotions (religious, moral, æsthetic, intellectual)—Illegitimate confusion between the quality and intensity of emotion—Examination of a typical case: musical emotion—The most emotional of all the arts is the most dependent on physiological conditions—Proofs: its action on animals, on primitive man, on civilised man; its therapeutic action—Why certain sensations, images, and ideas awaken organic and motor states, and, consequently, emotion—They are connected either with natural or social conditions of existence—Differences and resemblances between the two cases—Antecedents of the physiological theory of emotion—Dualist position, or that of the relation between cause and effect—Unitary position; its advantages.