Fig. 4.

HG and CAC response patterns in subcortical and limbic regions. a Anatomical and functional categorisation of electrodes in subcortical nuclei and limbic regions, based on the Desikan-Killiani anatomical parcellation. Left: left hemisphere, medial view. Centre: ventral view. Right: right hemisphere, medial view. b HG responses (expressed in t-values relative to the baseline) averaged within regions and across participants at each stimulus frequency. c Same as in b. for CAC. d Pearson correlation value (r²) between onset HG responses and stimulus frequency (colour-filled bars) and salience (empty bars). Error bars indicate SE of the correlation. e Same as in (d) for CAC. f Proportion of activated electrodes exhibiting significant HG onset response (dark shading), sustained CAC (no shading) or both (grey shading) in each region. Numbers on the y-axis indicate the number of electrodes located in each region. *, ** indicate significant (corrected) p-values at 0.05, 0.01, respectively. Hippo Hippocampus, Parahipp Parahippocampal Gyrus