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. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: Clin EEG Neurosci. 2020 Dec 8;53(5):435–442. doi: 10.1177/1550059420978009

Figure: Summary of Correlations Between Quantitative EEG Features and Cognitive Scores.

Figure:

Correlation coefficients using Spearman’s rank correlation between 10 quantitative EEG features and 12-month global RBANS scores (A), visuospatial/constructional scores (B) and delayed memory scores (C). P-Values less than 0.05 are marked with an asterisk (*). Red colors indicate negative correlations, blue indicates positive correlations. Relative alpha power correlated with long-term visuospatial/constructional ability (rho = 0.78, p = 0.008), while peak interhemispheric coherence and spectral variability in the delta range correlated inversely with long-term delayed memory performance (rho = −0.81, p = 0.018 and rho = −0.657, p = 0.039, respectively). For example, persons with higher relative alpha power showed better long-term visuospatial/constructional ability, but those with higher peak coherence showed poor delayed memory at 12 months. RBANS: Repeatable Battery for the Assessment of Neurocognitive Status, SV: Spectral Variability