No statistically significant differences in the number of neurons per layer in the EC were observed in the nondemented group (CDR = 0; n = 10) according to age (layer II, r = 0.001, p = 0.91; layer III,r = 0.04, p = 0.57; layer IV,r = 0.05, p = 0.54; layers V, VI,r = 0.03, p = 0.60, NS).