a b s t r a c tintroduction: although decision-making processes have become a principal target of study among addiction researchers, few researches are published according to effects of different treatment methods on the cognitive processes underlying decision making up to now. utilizing cognitive modeling method, in this paper we examine the effects of methadone maintenance treatment (mmt) on ...

Reward insensitivity in depression and dysphoria has been demonstrated by self-report, behavioral, and neuroscience data. These findings show less anticipated and experienced pleasure to rewarding stimuli, no behavioral adaptation in anticipation of rewards, and altered functioning in reward-related brain areas. The present study expands previous research by using cardiovascular reactivity to t...