An emotion is a psychological and physical reaction to a situation. It first has an internal manifestation and generates an external reaction. It is caused by the confrontation with a situation and the interpretation of reality. In this, an emotion is different from a sensation, which is the direct physical consequence (relation to temperature, texture, etc.). Sensation is directly associated with sensory perception. The feeling is therefore physical. As for the difference between emotion and feeling, it lies in the fact that the feeling does not present a reactive manifestation. However, an accumulation of feelings can generate emotional states.
Emotion can be defined as a sequence of changes occurring in five organic systems (cognitive, psychophysiological, motor, denotational, monitor), in an interdependent and synchronized manner in response to the evaluation of the relevance of an external or internal stimulus by related to a central interest for the organization.
