Figure 9.
Comparison of ventral striatal and hippocampal local field potential properties. A, Average PSD for HC (recorded from the fissure) and VS. Note the prominent theta peak and harmonics in the hippocampal PSD compared with a barely noticeable “shoulder” in the ventral striatal data. Ventral striatum contained clear low (50 Hz) and high (70–100 Hz) gamma power (in line with van der Meer et al., 2010b) absent from the hippocampal fissure. B, Average theta frequency was not different between the two structures.