Rather than being the chemical that drives pleasure, dopamine is the chemical that drives anticipation. It allows us to anticipate pleasure, but also allows us to anticpate pain. It is the chemical that allows us to evaluate if our circumstances and/or our actions are 'worthy', and to act with delayed gratification.jpeps wrote:Dopamine is generally involved in any rewarding activity.
A policeman entering a building to resolve a hostage situation has no expectation of pleasure - his mind tells him he is likely to face bullets, knives, pain and potentially death, yet he 'decides' the goal is worthy and enters the building. This is dopamine in action.
Psychosis is driven by dopamine runaway - such that the person misunderstands reality and acts in ways that other people would reason to be foolish. In this regard, many great artists, inventors, priests etc etc are being driven by the dopamine system - their thought patterns are 'outside the box' and would be judged by the many to be psychosis.
What about the Catholic concept of 'purgatory'. Is that reality? Like many religious ideas many people would consider this to be a psychosis. Wars like Sarajevo, or Syria etc are fought because people decide to kill other people for the sake of their religious beliefs. Is God the winner in such circumstances? Or is this sort of religious fervour psychosis in action?
Because religious concepts are 'intangible' concepts, they are driven by the dopamine system, and therefore often subject to straying into the realm of psychosis. The psych wards are full of people who believe themselves to be on a mission from God.