Fig. 7.

AMPAR and NMDAR subunit expression in supragranular layers of area 18. A: High-power photomicrograph illustrating two DiI-positive cells in supragranular layers of area 18 (arrowed). B: Same field of view as in A, showing staining for the GluR2 subunit of the AMPAR. C: Merged image of A and B, showing that the two arrowed DiI-positive cells express the GluR2 subunit of the AMPAR. D: High-power photomicrograph illustrating a calbindin-positive cell in supragranular layers of area 18 (arrowed). E: Same field of view as in D, showing staining for GluR2/3. F: Merged image of D and E, showing that the arrowed calbindin-positive cell expresses GluR2/3. G: High-power photomicrograph illustrating two parvalbumin-positive cells in supragranular layers of area 18 (arrowed). H: Same field of view as in G, showing staining for the GluR2 subunit of the AMPAR. I: Merged image of G and H, showing that the two arrowed cells express the GluR2 subunit of the AMPAR. J: High-power photomicrograph illustrating two parvalbumin-positive cells in supragranular layers of area 18 (arrowed). K: Same field of view as in J, showing staining for the NR1 subunit of the NMDAR. L: Merged image of J and K, showing that the two arrowed cells express NR1. A magenta-green version of this figure can be found online for colorblind readers. Scale bar = 20 µm in C (applies to A–C), F (applies to D–F), I (applies to G–I), and L (applies to J–L).