
Experiment II: The post-conditioning PC-ablation impaired the odor-aversion learning. (A) The experimental schedule. The conditioning, the surgery, and the retention test are indicated by ●, ▲, and ■, respectively. (B) The avoidance rate (%) was substantially reduced in the PC-ablated group than in the sham-operated groups irrespective of the interval between the conditioning and the surgery. The numerals above the columns indicate the number of slugs used for the conditioning. *P < 0.05 and **P < 0.01 by χ2 test. Solid bars: PC-ablated slugs; open bars: sham-operated slugs; shaded bars: naive slugs.










