Learned aversion and rearing movement in rats given LiCl,PbCl2 or NaCl

Summary The effects of an i.p. injection of 0.15 M LiCl resembled closely the effects of another toxic substance, 0.005 M PbCl₂, on conditioned aversion to saccharin and rearing movements in male rats. The findings suggest that nonspecific aversive after-effects of a LiCl injection can account fully for prompt effects of LiCl on rearing behavior.Acknowledgments. I thank Elin Kristensen and Christian Hoffmann for testing the rats, Klaus Thomsen and Ole Olesen for constructive criticism and P. Carl Petersens Fund, Aarhus University and the Danish Medical Research Council for financial support.