시점간 선택과 중독

Intertemporal Choice and Addiction

Intertemporal choice refers to decision making between immediate but smaller and delayed but larger rewards. This decision-making is ubiquitous in real life such as in the domains of health, retirement savings, and education. Although it is usually assumed that humans generally prefer sooner over later rewards, growing evidence suggests that this preference shows interindi-vidual diversity and can vary according to the context. Recently, interdisciplinary approaches including behavioral economics, neuroscience and psychiatry have elucidated the psychological and neural mechanism underlying intertemporal choice and have suggested novel intervention methods for intertemporal choice. Therefore, the goal of this article is to review the diverse literature related to intertemporal choice. First, the concept of intertemporal choice and context-dependent change in intertemporal choice will be introduced. Next, the neural mechanism of intertempoal choice will be explained from the perspective of neural network and dopamine. Then, the high discount rate in intertemporal choice in patients with addiction will be addressed. Finally, diverse interventions which reduce high discount rate in intertemporal choice will be suggested.