Figure 2.

The mean (±se) overall proportion correct on the NaCl vs. KCl discrimination task collapsed across all NaCl and KCl trials on the 4 presurgical test sessions with 100 μM amiloride hydrochloride serving as the solvent. The different symbols represent the performance of individual rats and are consistent within a specified group across all figures. Amiloride treatment severely disrupted the NaCl vs. KCl discrimination presurgically. See Figure 1 caption for definition of group abbreviations.