Rats given 1 10-min. trial of drinking LiCl learned to avoid drinking that substance again. The learned adversion to drinking LiCl was found to generalize most to the drinking of NaCl, and in lesser degrees, to the drinking of NH-sub(4)Cl, KCl, and H-sub(2)O. By repeated tests with NaCl, NH-sub(4)Cl, KCl, or H-sub(2)O, the learned drinking adversion was extinguished, and the extinction, particularly with NaCl, was found to generalize so that Ss would again drink LiCl. In 2-bottle preference tests, Ss were found to readily discriminate between LiCl and either NH-sub(4)Cl or KCl but to have difficulty in discriminating between LiCl and NaCl. These data were related to the electrophysiological responses of the chorda tympani to these salts. (PsycINFO Database Record (c) 2006 APA, all rights reserved)