Figure 5.

Performance in the alternation task is associated with selective NA efflux in the PFC of trained rats. a, Total efflux of NA relative to baseline during the 10 min exposure to the maze and in the successive 10 min sample. b, Total efflux of DA during the 10 min exposure to the maze and in the successive 10 min sample. Values are means ± SEM of the area under the curve of the monoamine efflux in 20 min and are normalized with respect to the averaged catecholamine efflux in the home cage in 20 min (100%). “Home” bars represent the normalized area of the last two baseline samples (20 min efflux) taken before placing the different groups of rats in the waiting cage. ^*p < 0.5 (Student's t test). ns, Not significant. Error bars represent SEM.