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Impulsive responses. (A) Detection task using lever presses as indicator response. Raster display and peri-event histogram of lever presses before and during stimulus presentation (gray) with inter-trial intervals (ITI) of 4 s. (B) Later during training of the same rat impulsive responding was greatly reduced by increasing ITI to an average of 20 s and introducing a no-activity window (NAW) preceding the stimulus by 10 s.
