AUTHOR=Olejarczyk Elzbieta , Sobieszek Aleksander TITLE=Commentary: Is So-Called “Split Alpha” in EEG Spectral Analysis a Result of Methodological and Interpretation Errors? JOURNAL=Frontiers in Neuroscience VOLUME=15 YEAR=2021 URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2021.726912 DOI=10.3389/fnins.2021.726912 ISSN=1662-453X