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. Author manuscript; available in PMC: 2017 May 15.
Published in final edited form as: Behav Brain Res. 2016 Feb 22;305:87–99. doi: 10.1016/j.bbr.2016.02.022

Fig. 4.

Fig. 4

Effects of 7-OH-DPAT on Conditioned Reinforcement. Treatment with 7-OH-DPAT prevented the acquisition of a new instrumental learning process selectively in sign-trackers. Sign-trackers receiving 7-OH-DPAT (n=5) were significantly attenuated compared to vehicle controls (n=5) on active nose pokes for lever presentation (a) and vigor of responding following lever presentation (b) while goal-trackers were not affected by treatment on either measure. *p<0.05 relative to vehicle. Error bars indicate SEM