I think the decision is a fundamental property of the nervous system, and that the ability to make complex decisions, to act, is due to a change in the organization of all stages of the system, not just the appearance of forms in the frontal cortex. The brain does not decide in function of the absolute value of the gratification, but in terms of subjective value, the difference between what was expected or desired and what you get. [...] The idea that I propose, sees the brain as part of the world, which has internalized the property, it mimics some, but referring to his own ends, a brain that constructs the external world by projecting it into the perceptions, desires, intentions. It simplifies the world according to their choices, only perceive what we want to hear. For example, create a regular series of stimuli in the case. This identification is required to regularly and unconscious, as it does not mean no effort of attention. The brain just does not simulate is an emulator that creates the world as in dreams. [...] Represents a series of scripts. [...] The theory states that the Rolls-way cortical processing of sensory data are protected from any interference of emotion to a very elaborate stage perceptive analysis. This stage would be when you create perceptual invariants [...] The emotion in this approach, involved adding - as required by the theory of somatic markers of Damasio - a value, in the broadest sense of the word, this perception rebuilt. By contrast, pathways discovered by LeDoux court can quickly trigger a repertoire of behaviors essential for survival - such as running away, aggression, submission. [...] The brain would thus providing at least two mechanisms, apparently different. One, appeared early in evolution and related to survival, is quick. In this case the decision is the result of close cooperation and obligations between emotion and perception. [...] The other appeared more late in evolution. Requires a complex information processing of the senses, but, above all, is the projection of intentions, depends on the past, the history of the individual and social group culture.
[...] How to reconcile these two viewpoints? Through the concept of heterarchical decisions - decisions are made at all levels, and each level influence the preceding and following it - and changing the concept of brain function. Instead of considering only the emotion as a reaction, you should consider a means of preparing for action. Emotion is a tool for decision, is a powerful means of prediction of a brain that anticipates and designs their intentions. [...] The emotion in particular activate the mechanisms of selective attention, and instead would lead to a distortion of the perceived world, a selection of the objects perceived or neglected in the world, profoundly alter the relationship between memory and the perception of this . The emotion, guide attention, would be a perceptual filter [creative]. [...] The main function of the brain is to predict the consequences of the action in light of the results of past actions, the memory is used primarily to predict the future, not only to remember it. So you decide to provide a range of future consequences of actions, but also assess the relevance in relation to the experience of actual reality (p. 370 et seq.)
Despite theories that see in the e-motion only the preparation of the body into action, rushing upon something that is ex, Berthoz Sartre takes the definition of that emotion: "It is a transformation of the world. When the paths laid become too difficult or when we see no way, we can not stay in a world so compelling and so difficult. All roads are barred, and yet we must act. Then we try to change the world, that is to live it as if the relations of things with their potential were not governed by deterministic processes but by magic. " [...] The use of magic is important for Sartre, all the emotions "contribute to the creation of a magical world, using our body as a means of charm," [as creative filter] (p. 63).
From "The Science of Decision" (2004).
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