Figure 2.

Local 3–5 Hz activity locked on frontal cortex FRs onset. A, Three examples of 4 Hz oscillations around (± 1000 ms) frontal cortex FRs in the raw (gray) and filtered (3-5 Hz, black) LFP signal, in the FC. B, Phase analysis across representative events (>200 events) showing the phase consistency around frontal cortex FRs (note the alignment of pale and dark blue around frontal cortex FRs onset). C, Phase consistency across all events. Data within the red contour are significant (p < 6 × 10⁻⁸). PLF, Phase-locking factor as defined in the study by Mazaheri and Jensen (2006).