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Effective connectivity in preferential choices from memory. Left: the most likely Dynamic Causal Model with connection strengths (‘‘++’’ = positive at p < 0.01; ‘‘+++’’ = positive at p < 0.001); right: the connection from hippocampus to ventromedial prefrontal cortex (circled) was only significantly positive when participants chose the better remembered snack. Error bars represent 95% confidence intervals (adapted with permission from [71]).
