Further Studies of Depressed Patients by Means of Computerized EEG1

Topographic electroencephalographic alpha in recovered depressed elderly.

“…Research in which quantitative EEG indices were extracted from waking records of actively depressed adult samples (Brenner et al, 1986; Flor-Henry, Koles, Howarth, & Burton, 1979; John, Prichep, Fridman, & Easton, 1988; Perris, von Knorring, Cumberbatch, & Marciano, 1981; Schaffer, Davidson, & Saron, 1983; Shagass, Roemer, & Straumanis, 1982; Visser, Van Tilburg, Hooijer, Jonker, & de Rijke, 1985; von Knorring, Perris, Goldstein, Kemali, Monakhov, & Vacca, 1983) provided the basis for the hypotheses examined in this study: that recovered depressed subjects would exhibit greater alpha activity (Brenner et al, 1986; John et al, 1988; Schaffer et al, 1983; von Knorring et al, 1983) and greater beta activity (Flor-Henry et al, 1979; John et al, 1988) than controls. In addition, because evidence indicates that laterality (Abrams & Taylor, 1979; d'Elia & Perris, 1973; Flor-Henry et al, 1979; Kemali, Vacca, Marciano, Nolfe, & Iorio, 1981; Matousek, Capone, & Okawa, 1981; Monakhov, Perris, Botskarev, von Knorring, & Nikiforov, 1979; Nystrom, Matousek, & Hallstrom, 1986) and anterior–posterior distributions (Shagass et al, 1982) distinguish between actively depressed patients and controls, regional EEG differences were assessed.…”

Quantitative Wach-Elektroenzephalographie in der Psychiatrie: Eine Literaturübersicht

“…Es wird sowohl über vermehrte (43,71,111). als auch über verminderte &Aktivität (98) oder keinen Unterschied zu normalen Probanden berichtet (7,76,78.130).…”

Frontal brain asymmetry and affective style: A conceptual replication

“…In recent years a considerable body of research reports has been published addressing the association between individual differences in asymmetries of cortical activation and affective traits e.g., Davidson & Fox, 1989;, 1991Tomarken, Davidson, & Henriques, 1990;Tomarken, Davidson, Wheeler, & Doss, 1992;Wheeler, Davidson, & Tomarken, 1993!. Based on a biological model of affective behavior~Davidson, 1992abehavior~Davidson, , 1992b, several studies could demonstrate that individual differences in emotional reactivity or dispositional mood can be predicted by resting electroencephalographic~EEG! asymmetry in anterior regions of the brain~e.g., Tomarken et al, 1990;Tomarken, Davidson, Wheeler, & Doss, 1992;Wheeler et al, 1993!. However, many investigators provided findings that are not in line with the model~Cole & Ray, 1985;Collet & Duclaux, 1987;Flor-Henry & Koles, 1984;Perris, von Knorring, Cumberbach, & Marciano, 1981;Schellberg, Besthorn, Pfleger, & Gasser, 1993;Tucker & Dawson, 1984!, and a considerable variety of methodological and analytical procedures have been used across different investigations. This article reports on the attempt of a conceptual replication of the reported associations between frontal EEG asymmetry and affective reactivity, and the investigation of their inde-pendence of the methodological procedures used in former studies.…”