Table 2.
Coefficients of the relative spread variation for the best models.
| Physiological ripples | Pathological ripples |
Fast ripples | |||
|---|---|---|---|---|---|
| All stages | REM | N2 | N3 | All stages | |
| Stage | – | − 13.9* | 1.4* | 10.5* | – |
| AT | – | – | – | – | – |
| SW | – | 2.0* | 2.0* | 3.5* | 0.7* |
| DA | 1.8* | − 2.8* | − 0.5 | − 0.8 | – |
| SA | – | 4.0* | 2.8* | 1.5 | 3.4* |
Units are percentages. Asterisks indicate the coefficients that are significantly different from zero. For example, there is a 13.9% decrease in spatial spread of pathological ripples during REM sleep, as opposed to a 10.5% increase during N3 sleep. Legend. AT: accumulated time; SW: slow wave amplitude; DA: delta band activity; SA: sigma band activity.