Figure 2
From: Conditioned taste aversion in the cricket Gryllus bimaculatus
Effects of injections of different concentrations of LiCl solution paired with sucrose consumption. (A) Kaplan–Meier plots of survival probabilities of three groups of crickets that received injection of different concentrations of LiCl solution. Crickets in all groups were allowed to consume 0.5 M sucrose solution for 2.5 min and they were injected 5 min later with 5 µl of saline (n = 50) or saline containing 1 M LiCl (n = 50) or 2 M LiCl (n = 54) solution. The probability of survival was measured at various times up to 48 h after injection. Dashed lines indicate 95% confidence interval. The log-rank test was used to compare survival probabilities of different groups. (B) Two groups of crickets were allowed to consume 0.5 M sucrose solution for 2.5 min (pre-test) and they were injected 5 min later with 5 µl of saline or saline containing 1 M LiCl. Sucrose consumption was tested again for 2.5 min 1 day after injection (post-test). The Wilcoxon test was used for statistical comparisons of amounts of sucrose consumption before and after the CTA training (*** P < 0.001, ns: not significant).
