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. 2018 Nov 16;7:e39648. doi: 10.7554/eLife.39648

Figure 1. Adapted Monetary Incentive Delay (MID) task trial structure.

An initial cue signaled potential gain for each trial (high/low pleasure erotic picture or high/low monetary reward). 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 were adapted to approximate 67% hit rate for each subject. In case of gain trials volunteers could watch the outcome picture (erotic picture or money) for 1.5 s. In case of loss trials a scrambled image was shown.

Figure 1.

Figure 1—figure supplement 1. Behavioral rating data.

Figure 1—figure supplement 1.

Top row: Pleasure and frustration ratings for received and missed monetary rewards. Bottom row: Pleasure and frustration ratings for received and missed erotic picture rewards.