Figure 4.
Effects of 7 days of naturalistic habitat (NH) on protein levels of (A): BDNF; (B): phospho-synapsin I (p-synapsin I); (C): phospho-CREB (p-CREB); and (D): GAP-43, in the hippocampus (HP). The increase in protein levels reached significant for all markers. Values are expressed as mean ± SEM. Independent sample T-test (SPSS 16.0) was carried out between NH and cage con groups (*p<0.05, **p<0.01, n=9/group).