Fig. 1.

Cortical layers of entorhinal cortex (EC) observed using Nissl staining (a) and average intensity projection of lower resolution optical coherence microscopy obtained with a $10\times$ objective (b). Layers I–IV have been labeled, as well as the white matter. The individual neurons can be observed by OCT using a higher magnification (c). The insets (d-i) show the different structures observed by OCT (e, g, i) and its correspondence in the Nissl stained slice (d, f, h): vessels found in layer III (d, e), neurons of layer II (f, g), and neurons of layer IV (h, i). Myelinated fibers care also visible in the OCT images. Scale bar: $500\mu \mathrm{m}$.