Disentangling the effects of novelty, valence and trait anxiety in the bed nucleus of the stria terminalis, amygdala and hippocampus with high resolution 7T fMRI

The hippocampus and amygdala exhibit sensitivity to stimulus novelty that is reduced in participants with inhibited temperament, which is related to trait anxiety. Although the bed nucleus of the stria terminalis (BNST) is highly connected to the amygdala and is implicated in anxiety, whether the BNST responds to novelty remains unstudied, as well as how […]

Imbalance of Default Mode and Regulatory Networks during Externally-Focused Processing in Depression

abstract A core cognitive vulnerability in major depressive disorder (MDD) is the tendency to ruminate. Attentional control difficulties likely underlie this maladaptive thinking style. Previous studies suggest that abnormalities in the default mode, executive, and salience networks are implicated in both rumination and attentional control difficulties in MDD. In the current study, individuals with MDD […]

BAS Reward Responsiveness: A unique predictor of positive psychological functioning

Abstract Previous research on Reinforcement Sensitivity Theory has well-characterized the Behavioral Inhibition System in terms of its behavioral and emotional manifestations, but the Behavioral Approach System (BAS) is less well-defined, particularly regarding the prominence of reward sensitivity versus impulsivity. Furthermore, few researchers evaluate both systems in one model. We evaluated the relationship between Carver and […]

State rumination enhances elaborative processing of negative material as evidenced by the late positive potential.

Abstract Rumination has been shown to increase negative affect and is highly associated with increased duration of depressive episodes. Previous research has shown that enhanced elaborative processing of negative stimuli is often associated with depression and trait rumination. We hypothesized that engaging in rumination would result in sustained elaborative processing of negative information, as measured […]

Relations between Resilience, Positive and Negative Emotionality, and Symptoms of Anxiety and Depression

Abstract Although research concerning the effects of traumatic and stressful life events on an individual’s mental health has been plentiful in the past several decades, research aimed at understanding the nature of resilience and its role in this process has been less plentiful. The present study examined the relationship between a commonly used measure of […]