Maggie M. Sweitzer

TL;DR: The explore/exploit trade-off has been studied extensively in behavioral ecology and computational neuroscience, but is relatively new to the field of psychiatry as discussed by the authors, which can offer psychiatry research a new approach to studying motivation, outcome valuation, and effort-related processes which are disrupted in many mental and emotional disorders.

TL;DR: The results suggest that DD among smokers is not simply the result of nicotine exposure, but may be an important marker for dependence, especially urgency to smoke in the morning.

TL;DR: Despite that there are no clinical recommendations or systematic research supporting the beneficial effects of cannabis use for ADHD, online discussions indicate that cannabis is considered therapeutic for ADHD—this is the first study to identify such a trend.

TL;DR: It is reported that relative preference for immediate, smaller rewards over larger rewards delayed in time (delay discounting), a behavioral endophenotype of impulsive decision-making, varied by interaction of DRD4 genotype with childhood socioeconomic status (SES) among 546 mid-life community volunteers.

TL;DR: Results provide support for hypothesis that, in a nonclinical sample, impulsivity may vary systematically with performance on neuropsychological indicators of prefrontal function.