Fig. 3.

Mean spectra and slow-5 fALFF for combined components (pDMN, aDMN, vDMN, visual and sensorimotor). Left: group mean spectra with arrows representing the difference between the two time-points within a group (Blue: healthy aged-matched controls, Red: stroke subjects between subacute to chronic stage). Right: boxplot of slow-5 fALFF per group with whiskers representing the upper and lower fence. The linear mixed-effect model revealed a trend toward significant difference between the groups (p < 0.08), and more importantly a trend toward significance in Group × Time interaction (⁺ p < 0.08).