Figure 3.

The dorsomedial to ventrolateral gamma power gradient in the vStr LFP is conserved across different behaviors and is significantly different from duration-matched control epochs, which had low power in both gamma bands (see Materials and Methods for details). A, Average gamma power distributions across vStr during active foraging and reward consumption for two subjects that completed the foraging task. B, Histograms of variance explained (R²) for plane fits to low-gamma (left) and high-gamma (right) and control events of equivalent length (red). Gamma events are generally well fit by a plane (high R² values), whereas control events were less well fit. Insets show representative gamma and control events.