Skip to main content
. Author manuscript; available in PMC: 2020 Apr 1.
Published in final edited form as: Psychopharmacology (Berl). 2018 Nov 27;236(4):1219–1232. doi: 10.1007/s00213-018-5128-9

Figure 6:

Figure 6:

Menthol decreases nicotine’s reinforcing effects as assessed under a progressive ratio (PR) schedule. (a) Mean (± SEM) number of infusions obtained during the three baseline sessions versus the three test sessions for the Nic (n=9; black circles) and Nic+Mentmod (n=9; light gray circles) groups. An asterisk (*) indicates a significant difference from baseline for the Nic+Mentmod group. (b) Mean (± SEM) percent change from the baseline number of infusions for each of the test sessions and groups (nicotine = black bar; Nic+Mentmod = gray bar).