Results of UF/cingulum ratio analyses. A, Shows the statistically significant positive association between unpredictable maternal sensory signals and the ratio of anterior MTL–PFC connectivity (uncinate fasciculus GFA) to posterior MTL–PFC connectivity (hippocampal cingulum GFA; r = 0.28, p = 0.018). B, The marginally significant association between a greater ratio of anterior MTL–PFC connectivity to posterior MTL–PFC connectivity and impaired lure discrimination on low-similarity lure items (r = −0.23, p = 0.058). C, D, The results of the mediation analyses. β values represent the coefficient for the arrows effect. c' represents the direct effect, and c represents the total effect of unpredictable maternal sensory signals on low-similarity lure discrimination. C, Shows the significant indirect effect of the ratio of uncinate fasciculus GFA to hippocampal cingulum GFA mediating the association between unpredictable maternal sensory signals and low similarity lure discrimination. D, The nonsignificant indirect effect of the ratio of uncinated fasciculus GFA to hippocampal cingulum GFA mediating the association between unpredictable maternal sensory signals and recognition performance is statistically significant at p < .05.