11 mayo 2015
People like immediate reinforcement and tend to devalue rewards that are substantially delayed in time. As a result, people will often opt for smaller immediate rewards as opposed to larger delayed rewards when given a choice. This decision-making process of weighing benefits versus costs for a particular outcome is called «delay discounting.» Though we perform these cost-benefit analyses in a seemingly effortless manner, scientists are still learning how the brain performs these complex processes. Dopamine is the chemical messenger in the brain most closely associated with pleasure and reward. Recent scientific advances now shed light on precise roles for dopamine in the reward process.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/p7Y2T8LFN2Y/150511090118.htm
