Fig. 3.

One-millimeter spatial scale synchrony (unipolar power), and behavioral state modulation. The LFP unipolar spectral power from a single electrode can be interpreted as a local (∼1 mm) measure of neuronal synchrony (power normalized to non-SOZ = 1). The LFP unipolar power is increased in SOZ compared with non-SOZ for all frequency bands, during both behavioral states [slow-wave sleep (A), wake (B)]. The difference between SOZ and non-SOZ is reduced during wakefulness in alpha band. In general, differences between SOZ and non-SOZ were smaller during wake state. Statistical difference between groups is observed at two levels, *P < 0.05 and **P < 0.01.