shown)] compared to late extinction [SCR: THC = 0.13 ± 0.05; PBO = 0.13 ± 0.04 (Figure 2); US Expectancy: THC = 1.91 ± 0.33; PBO = 1.90 ± 0.32 (not shown)]. There were no differences between drug groups in SCRs or US expectancy ratings to the CS+E [SCR: Early Extinction: t(27) = 0.84, p = 0.40; Late Extinction: t(27) = 0.06, p = 0.95; US Expectancy: Early Extinction: t(27) = 1.02, p = 0.32; Late Extinction: t(27) = 0.02, p =0.98].
