Pupillary response abnormalities in depressive disorders.

Depressive disorders lack objective physiological measurements to characterize the affected population and facilitate study of relevant mechanisms. The melanopsin-mediated light signaling pathway may contribute to seasonal variation and can be measured non-invasively by pupillometry. We prospectively studied changes in melanopsin-mediated pupillary constriction in 19 participants with major depressive disorder (MDD) and 10 control across the summer and winter solstices.

The relationship of two types of trauma exposure to current physical and psychological symptom distress in a community sample of Colombian women: why interpersonal violence deserves more attention.

Our purpose in this study was to examine the relationship between interpersonal violence and background traumas and symptom distress in a community sample of Colombian women (N = 217). We utilized the Life Stressor Checklist-Revised (LSC-R) to measure lifetime interpersonal violence (IPV) and background trauma exposure and the Brief Symptom Inventory (BSI) to measure current symptom distress. Although both exposures were common in this sample, IPV was strongly correlated with current symptom distress; background traumas made no unique contribution to the variance in current symptom distress.