This question is related to this one: How long can a person stay happy, excited and motivated about something new?
I found a couple of references to research that links "thinking fast" to mood lift: Speed of thinking and mood lift From what I've read so far on how the body/brain works, there are several examples of "negative feedback" to maintain homeostasis. This is the first example of something that can be considered "positive feedback", and it intrigues me.
I'm wondering what are the parts of a brain or neurotransmitters that are involved in "thinking fast"?
To clarify the question - by thinking fast I mean engaging in a train of thought that is self-reinforcing, self sustained and directed. For example, thinking of a project at work, then of all the people who you can involve, then of all the improvements that can be made, of the outcome that can take place, of success, what you can do next, etc.
This kind of thinking pattern introduces numerous related targets for attention, and attention can quickly switch between trains of thought. At the same time, the majority of attention is occupied by a single idea or project that has multiple branching trains of thought associated with it. In poetic terms, the brain is weaving a pattern or a web of thought.
This creates a state where the brain cannot process the entire idea/project/concept at the same time, forcing it to "think faster", and do more switching between related branched trains of thought.