Fig. 4
From: Quantitative EEG as a biomarker in mild cognitive impairment with Lewy bodies
Comparison of quantitative EEG characteristics between patients with and without visual hallucinations. a Comparison of alpha power and b theta/alpha ratio between MCI-LB patients with visual hallucinations (VH+, N = 9) and without visual hallucinations (VH−, N = 30). In each boxplot, the central line corresponds to the sample median; the upper and lower border of the box represent the 25th and 75th percentile, respectively; and the length of the whiskers is 1.5 times the interquartile range