Fig. 1.

Theta phase modulates the LG amplitude in the CA3 region. (A) Task scheme. Animals have to learn to associate contexts (represented by different shading) to items (represented by yellow and blue) for reward. A 40-s period of context exploration is allowed before items presentation. The two contexts (A or B) differed in their flooring and walls; the items (X or Y) differed in odor and in the medium that filled the pots. (B) Representative phase-amplitude comodulogram computed for a CA3 LFP recorded at stratum pyramidale during context exploration.