Figure 1.

Firing of mPFC pyramidal neurons was decrease by aging, but increased by HIV. A. Sample spike traces from Tg or non-Tg rats at younger (6/7wk) or older (12m) age. B. Spike number was significantly decreased in neurons of 12m rats regardless of HIV status; but was increased in Tg rats regardless of age (6/7wk non-Tg vs. 6/7wk Tg: *,**p<0.05 or 0.01. 12m non-Tg vs. 12m Tg: ^,^^,^^^p<0.05, 0.01, or 0.001; 6/7wk non-Tg vs. 12m non-Tg: #,##,### p<0.05, 0.01, or 0.001. 6/7wk Tg vs. 12m Tg: &,&&p<0.05 or 0.01).