Key result
Past major depressive disorder in women was associated with relatively less right parietal activity compared to current MDD and no MDD, with caffeine intake moderating this relationship.
Why the study?
Does resting parietal EEG asymmetry differ between individuals with and without a lifetime diagnosis of major depressive disorder?
Observational (n=306)
Does resting parietal EEG asymmetry differ between individuals with and without a lifetime diagnosis of major depressive disorder?
Answers are grounded in this paper and cite their sources.
Less right parietal EEG activity may mark MDD risk in women without anxiety; leaves open prospective validation before clinical use.
Relatively less right parietal activity may reflect reduced arousal and signify risk for major depressive disorder (MDD). Inconsistent findings with parietal electroencephalographic (EEG) asymmetry, however, suggest issues such as anxiety comorbidity and sex differences have yet to be resolved. Resting parietal EEG asymmetry was assessed in 306 individuals (31% male) with (n=143) and without (n=163) a DSM-IV diagnosis of lifetime MDD and no comorbid anxiety disorders. Past MDD+ women displayed relatively less right parietal activity than current MDD+ and MDD- women, replicating prior work. Recent caffeine intake, an index of arousal, moderated the relationship between depression and EEG asymmetry for women and men. Findings suggest that sex differences and arousal should be examined in studies of depression and regional brain activity.
No takes yet. Share an insight, caveat, or question.
Stewart et al. (2010) conducted an observational in Major depressive disorder (n=306). Major depressive disorder vs. No major depressive disorder was evaluated on Resting parietal EEG asymmetry. Past major depressive disorder in women was associated with relatively less right parietal activity compared to current MDD and no MDD, with caffeine intake moderating this relationship.
Synapse has enriched 10 related papers. Consider them for comparative context: