Journal of affective disorders
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To validate the Seven Up Seven Down (7U7D), an abbreviated version of the General Behavior Inventory (GBI), as screener for mood disorders and test its ability to predict mood disorders over time in individuals at risk for bipolar disorder (BD). ⋯ Based on the current study, the 7U7D shows limited potential as screening instrument for mood disorders in bipolar offspring. The clinical utility of the 7U7D needs further exploration for use in clinical and research settings.
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Fear-based disorders, like social anxiety disorder (SAD) and posttraumatic stress disorder (PTSD), are characterized by an exaggerated fear response and avoidance to trigger cues, suggesting a transdiagnostic mechanism of psychopathology. Current theories suggest that abnormalities in conditioned fear is a primary contributor to the pathophysiology of these disorders. The primary goal of this study was to compare acquisition of conditioned stimulus (CS) and aversive unconditioned stimulus (US) contingencies during fear learning and extinction in individuals with SAD and PTSD. ⋯ Group sample sizes were small and we did not include a trauma-exposed group without PTSD CONCLUSIONS: Both SAD and PTSD generalize expectations of an aversive outcome across CSs, even when a CS never signals an aversive outcome and PTSD may tend to over-expect threat. Fear learning and extinction abnormalities may be a core feature underlying shared symptoms across fear-based disorders.
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Clinical Trial
Continuation phase intravenous ketamine in adults with treatment-resistant depression.
Little is known about the antidepressive effects of repeated intravenous ketamine infusions beyond the acute phase of treatment in patients with refractory depression. ⋯ NCT02094898.
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Post-stroke depression (PSD) is the most frequent mental disorder after stroke, affecting about 30% of stroke survivors. Despite extensive research, little is known about the influence of general self-efficacy (GSE) on PSD. We investigated the effect of GSE on depression six months post-stroke while controlling for established risk factors. ⋯ Decreasing GSE was linked to PSD, especially in patients with high baseline GSE. This effect may be due to dissatisfaction with recovery following high expectations. Early depressive symptoms and low social support predicted PSD. Early screening for depressive symptoms and focusing on self-efficacy might help to prevent later depression.
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Some MRI studies have noted alterations in the corpus callosum (CC) white matter integrity of individuals with mood disorders and also in patients with suicidal behavior. We investigated the specific impact of suicidal behavior on CC integrity in mood disorders. ⋯ Genu and body are altered in non-suicide attempters with BD, while splenium is specifically altered in suicide attempters, independently from their psychiatric status. History of suicide attempts may be a source of heterogeneity in the association between CC alterations and BD and may partially explain the variable results of previous studies.