Anahit Mkrtchian

This paper conducts a meta-analysis of dopamine and serotonin pharmacological manipulations in humans, finding distinct associations with reward and punishment reinforcement learning components.

This study identifies four computational mechanisms underlying effort-based decision-making in depression and finds that remitted and current depressed individuals show reduced effort acceptance bias.

The paper assesses the reliability of reinforcement learning and prospect theory parameters from two tasks and finds they predict future behavior reliably.