Pearson’s correlation analysis was performed considering all subjects in T0, T1, T2 between Small World in every frequency and ADAS-Cog scores, showing a strong negative correlation between ADAS-Cog and delta SW (r = -0.3103, p = 0.00007) (4a) and a positive one between ADAS-Cog and alpha 1 (r = 0.1771, p = 0.0261) (4b). The lower delta SW or the higher alpha 1 SW index, the lower ADAS-Cog score, corresponding to a better cognitive condition of the patient