Fig. 8: Low frequency power in amygdala and hippocampus is involved in decision-making when the rule is known.
From: Reward recalibrates rule representations in human amygdala and hippocampus intracranial recordings
A Time-frequency plots showing differences in amygdala theta power in the decision phase between shift and no shift conditions. Black outline highlights the significant cluster (permutation test, p < .001, FWEC, two-tailed). Vertical dashed line at t = 0 corresponds to choice stimulus onset time. The decision phase was 2.1 s. B Theta activity in the amygdala in the decision phase on shift and no shift trials averaged over the frequency range spanned by the significant cluster shown in A (black lines represent mean and shaded regions represents standard error and condition (see legend)). The horizontal black line at the top of the plot represents the time intervals of significant clusters. C Difference in mean activity between conditions across patients within significant time points shown in A and B ordered by size of effect. Horizontal dashed line is the mean difference across all patients. D Time-frequency plots showing differences in hippocampal delta power in the decision phase between shift and no shift conditions. Black outline highlights the significant cluster (permutation test, p = .014, FWEC, two-tailed). E Delta activity in the hippocampus in the decision phase on shift and no shift trials averaged over the frequency range spanned by the significant cluster shown in D (black lines represent mean and shaded regions represents standard error and condition (see legend)). F Difference in mean activity between conditions across patients within significant time points shown in D and E ordered by size of effect. AMY Amygdala, HPC hippocampus, ID Intradimensional, ED Extradimensional. Source data are provided as a Source Data file.
