Emotional intensity produces a linear relationship on conditioned learning but an inverted U-shaped effect on episodic memory

Results of four extinction recall indexes. (NA) Nonaversive group, (LI) low-intensity group, and (HI) high-intensity group. Circles denote trial-averaged data over individuals. Bars and error bars denote mean and 95% CI from planned comparison. Dashed line indicates 0. (*) P < 0.05, (**) P < 0.01, (***) P < 0.001.