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. Author manuscript; available in PMC: 2016 Sep 15.
Published in final edited form as: Cell Rep. 2016 Sep 13;16(11):2864–2874. doi: 10.1016/j.celrep.2016.08.055

Figure 5. Spiking activity in PFC exhibited long-range phase locking to PPC 5Hz oscillation.

Figure 5

a) Spike-LFP phase locking was used to test if theta phase organized spiking activity across areas. Schematic showing that only a unidirectional long-range relationship was found, between PPC theta phase and PFC spiking activity.

b) An example unit recorded in PFC exhibited phase-locking to PPC 5Hz activity. Polar plot shows histogram of preferred phase of firing (in degrees).

c) Combined across recordings for Animal A, spike-LFP phase locking was most prominent at a narrow band centered on 5Hz, with a large fraction of units exhibiting significant spike-LFP phase locking. Spike-LFP phase locking was present throughout the duration of the trial, and did not exhibit task-dependent modulation in strength. See Figure S5 for other animals.