Fig. 2.
Univariate test results showing the association between alcohol duration and power spectra. Univariate tests were performed only on covariates of interest retained in the reduced MANCOVA model. Left panel (A) depicts the significance and direction of alcohol duration as a function of frequency for each component, displayed as - sign(t)log10(p). Red arrows on the color bar designate the FDR-corrected threshold (α = 0.05). Right panel (B) shows bar plots of the average β-values for alcohol duration term. β -Values were averaged over frequency bands with associations of the same directionality where test statistics exceeded the FDR threshold. The color of the bar is proportional to the fraction of contributing the frequency bins; the absence of a bar indicates that either univariate tests were not performed or test statistics were not significant. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)