Combined Blood Pressure Medication and Activity Scheduling for Low Mood

Change in reinforcement learning

reinforcement learning, calculated as the learning rate from negative and positive decision outcomes. Larger scores indicate better learning from an outcome.

Change in approach-avoidance-task (AAT) effect score

mean reaction time of the pull trials of a valence category subtracted from the push trials of the same category, yielding a single indicator of approach/avoidance, with positive scores indicating relatively stronger approach and negative scores indicating relatively stronger avoidance

Change in social approach decisions

% approach vs avoid decisions

Change in motivational effort in the Apples Task

The task weighs effort costs against reward value. It involves a hand dynamometer to record effort. On each trial, participants receive an offer showing a reward (number of apples shown on a tree) and an effort level (height of marking on the tree trunk), which they can accept or reject (Yes/No response). On a subset of accepted trials, participants have to exert physical effort on the hand dynamometer to earn the reward (number of apples in the respective trial). Participants receive monetary reward for the number of apples collected. Key outcome marker is effort-reward valuation, i.e. % accepted trials based on combinations of effort and reward levels. Other outcomes: Force exerted relative to Maximum Voluntary Contraction (MVC), Reaction times of Yes/No.