Extended Data Fig. 2: Characteristics of the local field potential signal.
From: Theta phase precession supports memory formation and retrieval of naturalistic experience in humans
(a and b) Time frequency plots of all the theta bouts (a) or theta bouts following boundaries (b) that are detected from a representative microelectrode with phase precession neurons identified. Time zero refers to the onset of theta bouts. (c-e) Time frequency plots of local field potential signals recorded from the same microelectrode shown in (a and b), aligned to boundaries (c), clip onsets (d), and clip offsets (e). (f) Frequency difference between cycles (1 vs 2, 2 vs 3, 1 vs 3) where all the theta bouts detected from the microelectrodes (n = 50) that phase precession neurons are identified. (g and h) Comparison of averaged theta power (g) and theta frequency (h) computed from local field potential signals within three theta cycles following boundaries, clip onsets and clip offsets in all microelectrodes with phase precession neurons identified (n = 50). **p = 3 × 10−3, n.s. = not significant (p > 0.05) in (g and h) for two-tailed ANOVA test.
