Table 1. Frequency and phase of gamma power fields for each TG state.

Frequency (mean ± sd) and phase (circular mean ± circular sd) for the centers of gravity of the mean FPPs for LFPs recorded from all animals in data sets Hc-11 and Hc-3 during awake (71 recordings in nine animals) and REM (64 recordings in eight animals) periods. sd: standard deviation.

	Wake (n = 71 recordings)		REM (n = 64 recordings)
FPP cluster	Frequency (Hz)	Phase (rad)	Frequency (Hz)	Phase (rad)
S-gamma	36.07 ± 5.38	0.58 ± 0.51	39.28 ± 9.69	0.74 ± 0.53
M-gamma	99.12 ± 17.15	−0.04 ± 0.88	93.36 ± 23.16	−0.01 ± 0.96
EF-gamma	127.72 ± 11.28	−2.57 ± 0.83	131.97 ± 17.31	−2.67 ± 1.19
LF-gamma	131.83 ± 8.80	2.12 ± 0.77	136.80 ± 13.04	1.68 ± 0.88