Fig. 1
From: Performance-linked visual feedback slows response times during a sustained attention task
Examples of feedback given to participants. Note: Each image faded in until appearing at full saturation after 800 ms, then faded out as the next image began appearing. The first feedback trial includes a mountain scene in which the participant incorrectly pressed the “M” key on the trial (commission error) and the second feedback trial includes a city scene in which the participant correctly hit the “M” key on the trial (correct commission)