A. Dual implants simultaneously targeted the OFC and dS within each subject. A cerebellar ground screw globally referenced the signals. Additionally, regionally a single electrode was used to control for volume conduction between OFC and dS, which focuses results to local regional activity. B. Each electrode within the OFC (top) and DS (bottom) of control mice had a slightly varying, but similar, ITPC Theta (4-8Hz) spectrogram to the cue cessation, indicating little variance in LFP signal over the 0.45mm span of the region the electrode covers. C. Similarly, while each electrode within GluN2BNull mice varied slightly within region (OFC top, dS bottom), ITPC within the span of the region had little variance.