So, you can define emotions very simply as the process of perceiving what is going on in the organs when you are in the throws of an emotion, and that is achieved by a collection of structures, some of which are in the brain stem, and some of which are in the cerebral cortex, namely the insular cortex, which I like to mention not because I think it's the most important, it's not.
Antonio DamasioWe do not merely perceive objects and hold thoughts in our minds: all our perceptions and thought processes are felt. All have a distinctive component that announces an unequivocal link between images and the existence of life in our organism.
Antonio Damasio...I sense that stepping into the light is also a powerful metaphor for consciousness, for the birth of the knowing mind, for the simple and yet momentous coming of the sense of self into the world of the mental.
Antonio DamasioThe emotion is the execution of a very complex program of actions. Some actions that are actually movements, like movement that you can do, change your face for example, in fear, or movements that are internal, that happen in your heart or in your gut, and movements that are actually not muscular movements, but rather, releases of molecules.
Antonio DamasioIt's very interesting to think about the distinction with mind, which I just made in very general terms, but it can be made more profound when we think that there are many species, many creatures on earth that are very likely to have a mind, but are very unlikely to have a consciousness in the sense that you and I have.
Antonio Damasio