Whei Ming Su
Writing context-dependent item sets that reflect critical thinking learning outcomes
Nurse educator
probabilistic reward task prt widely used investigate impact major depressive disorder mdd reinforcement learning rl recent studies used provide insight decisionmaking mechanisms affected mdd current project used prt data unmedicated treatmentseeking adults mdd extend efforts 1 providing detailed analysis standard prt metricsresponse bias discriminabilityto better understand task performed 2 analyzing data two computational models providing psychometric analyses 3 determining whether response bias discriminability model parameters predicted responses treatment placebo atypical antidepressant bupropion analysis standard metrics replicated recent work demonstrating dependency response bias response time rt showing reward totals prt governed discriminability behavior wellcaptured hierarchical drift diffusion model hddm models decisionmaking processes hddm showed excellent internal consistency acceptable retest reliability separate belief model reproduced evolution response bias time better hddm psychometric properties weaker finally predictive utility prt limited small samples nevertheless depressed adults responded bupropion showed larger pretreatment starting point biases hddm nonresponders indicating greater sensitivity prts asymmetric reinforcement contingencies together findings enhance understanding reward decisionmaking mechanisms implicated mdd probed prt