Figure 4.

(A) MTL novelty responses sensitive to stimulus content displayed for five individual participants. Voxels sensitive to face (red), scene (yellow), and both face and scene (orange) novelty are displayed along the anterior–posterior axis of the MTL. The region of the parahippocampal gyrus depicted in the two most anterior slices corresponds to perirhinal cortex, whereas the region of the parahippocampal gyrus depicted in the two most posterior slices corresponds to parahippocampal cortex. (B) Pattern of content sensitivity in anatomically defined MTL cortical regions. For voxels demonstrating sensitivity to novel stimuli relative to baseline, the percentage of novelty-sensitive voxels response to faces (red), scenes (yellow), and both classes of stimuli (orange) are plotted for perirhinal, parahippocampal, and entorhinal cortices, and similarly in (C) for the hippocampal subfields (CA_2,3/DG, CA₁, and subiculum). The mean number of content-sensitive voxels within a region is represented in the upper right-hand corner of the graph for each ROI.