Figure 6: Adapted Monetary Incentive Delay (MID) task trial structure.
An initial cue signalled potential gain for each trial (no gain: 0 points; small gain: 2 points; or large gain: 10 points). After a variable delay, a target briefly appeared. Responding during target display yielded the indicated gain, whereas late or early responses yielded no gain. Target durations adapted to approximate a 66% hit rate for each subject34.
