A and B show the total freezing time of the contextual fear-conditioned responses, 30 and 90 days after soman exposure, for the soman-exposed rats who received only ATS (0.5 mg/kg) and HI-6 at 1 min after exposure (n = 13), similarly treated rats who received also LY293558 at 1 h after soman exposure (n = 11), and controls (n = 17). C and D show the total freezing time for the auditory fear-conditioned responses, for the same groups, at 30 and 90 days after exposure. **p < 0.01, *p < 0.05 (ANOVA, Dunnett post-hoc test).