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

Source memory-recognition association for CS⁺ differs between groups. Only in LI group, associating a CS⁺ with conditioning led to high-confidence hits. Correct response was marked by hatched bars and black outlines. Dashed line indicates no association. Bayesian multilevel logistic regression was run for each phase. Violins depict posterior distribution of coefficients from 8000 Monte Carlo Markov Chain draws. White bars denote median and 95% HDI from the posterior distribution. (*) 95% HDI excludes 0.