Threat of shock increases preparatory encoding success activations, ESAs, in the amygdala. A, The right amygdala showed greater encoding success activations in response to shock cues compared to no-shock cues. B, Beta-parameters extracted from a-priori ROIs confirmed significant shock-motivated ESA (shock cue ESA > no-shock cue ESA) in the right amygdala, but not the left amygdala or bilaterally in the VTA. C, Across participants, shock-motivated ESAs during cue presentations were positively correlated with the extent to which memory was enhanced under threat of shock.