Parvalbumin neuron distribution along the dorsoventral axis of parahippocampal regions
(A and B) Colored bars, each representing one area of the parahippocampal region, with individual segments in each bar corresponding to a section along the dorsoventral axis. Approximate Bregma positions of sections along the dorsoventral axis are given. Parvalbumin neuron density is indicated by the intensity of the color (from light yellow to dark orange).|
(C) Example images from dorsal and ventral parts of the medial and lateral entorhinal cortex from rat (subject 25205, left panel) and mouse (subject 81266, right panel) showing a denser population of parvalbumin neurons in dorsal parts of these regions. Section numbers and approximate dorsoventral Bregma level are indicated for each image. Scale bars: 100 μm. Abbreviations: POR, postrhinal cortex; PrS, presubiculum; PaS, parasubiculum; MEC, medial entorhinal cortex; PER36, perirhinal area 36; PER35, perirhinal area 35; LEC, lateral entorhinal cortex.