The parameters and values for the count of cresyl-violet stained cell densities in the prefrontal and parietal cortices of Tg-βCTF99/B6 mice at the age 18-18.5 M and of their non-transgenic control. Cell numbers and cell density in the respective region were determined for each brain section, and their averaged values (means±S.E.M.) were presented. ^*The thickness was measured at the primary sensory cortex in the prefrontal cortex and at the posterior parietal association area in the parietal cortex. ^**Cell count areas for each brain region were indicated in Fig. 2A.