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Table 2 Statistical comparison of the component scores of children and young adults when PCA is computed from all subjects

From: Narrow band quantitative and multivariate electroencephalogram analysis of peri-adolescent period

 

Levene test:

Mean comparison:

C1 (Beta - EMG)

(F[1, 958] = 28.936), p < .001

(F[1, 705.346] = 6.488), p < .001

C2 (Delta - Theta)

(F[1, 958] = 361.333), p < .001

(F[1, 561.066] = 32.359), p < .001

C3 (Alpha)

(F[1, 958] = 48.738), p < .001

(F[1, 695.931] = 2.455), p < .014

C4 (Mu)

(F[1, 958] = 6.373), p < .012

(F[1, 691.765] = −1.610), p < .108

C5 (Low Alpha)

(F[1, 958] = 117.238), p < .001

(F[1, 522.495] = 2.954), p < .003

C6 (High Alpha)

(F[1, 958] = 72.075), p < .001

(F[1, 741.052] = .975), p < .330

C8 (Low Delta)

(F[1, 958] = 76.309), p < .001

(F[1, 728.777] = 4.176), p < .001

C9 (Mu)

(F[1, 958] = 15.962), p < .001

(F[1, 917.456] = 1.842), p < .066

  1. The F values of Levene test (homogeneity of variances) and One-way ANOVA (two between-subjects levels: children and young adults) are displayed. The rhythms associated to each component are indicated from component 1 (C1) to component 9 (C9) . In the case of C1 the term Beta-EMG refers to the possible contamination of the Beta rhythm by electromyographic signals.