Fig. 2

The top panel presents the corrected accuracy (percent hits minus percent false alarms) for each experiment and condition. The small gray circles are individual subjects’ data, the wide markers are the mean values, and error bars represent the SEM. Means for the control conditions are presented in black, and the means for the various feedback conditions are presented in gray. The bottom panel presents the mean reaction times for the correct target-absent responses for each experiment and condition. The small gray circles are individual subjects’ data, the wide markers are the mean values, and error bars represent the SEM. Mean values for the control conditions are presented in black, and the mean values for the various feedback conditions are presented in gray. FAs False alarms