FIGURE 2.

Nissl staining of a section obtained from the temporal lobe of an epileptic patient (No. 5 in Table 1). (A) Cortical layers could be easily distinguished by cell size, shape, and density. (B) High-power photomicrograph of the boxed areas in (A). The cell density in L3a is lower than that in L2, but slightly higher than that in L3b, while the somatic size of L3b PCs is bigger than that in L3a. Note the higher density of cells with smaller soma size in L4 than other layers. Scale bars represent 300 μm in (A), and 100 μm in (B).