Sounds more like metaphorical sugar - a brief top-up of excitement to keep the brain in high alert mode.
Think Facebook notifications. The excitement is not knowing what the notification is telling you about.
Think Facebook notifications. The excitement is not knowing what the notification is telling you about.
Dopamine manages how long you can do a task before you evaluate its success; the risk of energy expenditure. Think of how long a path finding algorithm goes into one direction before aborting; with the evolutionary twist of a survival restraints on overall energy expenditure, which means there is a feedback loop modifying the risk capacity on success or failure.
Normal people start with more and overfill with completed tasks (if rewarding), so they got more for the next plan. That is, you got a bit of dopamine for putting on your pants in the morning. In ADHD you _constantly fight the lack of (non-abstract) motivation for such simple things, because you got a chronic deficit. Daily life already costs you a lot of "will power".