Hippocampal Regulation of Postsynaptic Density Homer1 by Associative Learning

Figure 1

Contextual fear conditioning induced robust postshock freezing. Rats were exposed to a novel context for 3 min and received a footshock after 2 min. Data representative of all experimental groups culled 30 min, 2 h, 4 h, and 24 h after conditioning for in situ hybridization ( per group). Data represented by mean ± SEM percent freezing.