The puzzle of human emotions: some historical considerations from the 17th to the 19th centuries.

Emotions are both central to life experience itself and highly pertinent to various disciplines, including neuroscience, psychology, social studies, philosophy, and the arts. The definition of emotion lies at the interface of nature and culture reflecting an understanding of the components that shape emotional states and experiences across time and cultures. This review describes how the concept of emotion developed in Western thought, from the Renaissance notion of the passions to the 19th century idea of 'emotion'.