Figure 5.
Partial spike-LFP coherence by brain state. Insets at right, Summaries of eye and hand positions during each state: yellow represents idleness; orange represents target presentation; green represents movement; black represents fixation; red represents planning. All differences are significant (p < 10−5, K-S test), except between idleness and target presentation. The idleness state is behaviorally similar to the planning and fixation states, in that the monkey's body and eyes are unmoving, and he sees no stimuli. Yet, unlike fixation and planning states, the idleness state does not elicit strong anti-synchronous beta-band activity.