(A, B) Water (A) and food (B) intake in the homecage were measured over a 24-hour period. (B) Both lesions resulted in a loss of weight after surgery, but mVTA-lesioned animals recovered during the three weeks following surgery, whereas SNc-lesioned animals continued to gain less weight than the controls (Effects of lesion: Fs > 4.48, Ps < 0.05 and significant lesion x day interaction: Fs > 5.16, Ps < 0.001). (D) SNc lesions reduced the time spent in social interaction with a congener. (E, F) 6-OHDA lesions did not affect attraction toward an appetitive (coconut, E) or avoidance from an aversive (acetic acid, F) odor n = 12–18. *P < 0.05, **P < 0.01, ***P < 0.001, Sham-operated vs. Lesioned.