In the last two decades, a substantive body of empirical work investigated the association
between individual differences of electroencephalogram (EEG) alpha asymmetry and
affective/motivational dispositions. Recent work indicated that several methodological
problems persist in this field. The present paper reviews these problems with a focus on the
reliability and validity of measures of anterior resting EEG asymmetry, which serve as a
proxy for trait-like asymmetries of cortical activity. These issues include the treatment of …