Suchergebnisse

INTRODUCTION: Pregnancy and postpartum, or the perinatal period, are times when women are particularly vulnerable to mental health concerns, including suicidal ideation. Risk factors for suicidal ideation during this period of a woman's life are depression and exposure to trauma, the latter of which may occur during military operations. The number of women veterans in the United States continues to rise, as does their use of maternity benefits. In this pilot study, we examined the feasibility of recruiting pregnant veterans for longitudinal research. We hypothesized that hopelessness and depressive symptoms would be related to suicidal ideation during the perinatal period, and we investigated a possible relationship between post-traumatic stress symptoms (PTSS) and suicidal ideation. MATERIALS AND METHODS: Using the designated Veterans Affairs (VA) maternity care coordinator's census, we contacted pregnant women veterans for assessment during the 3(rd) trimester of pregnancy and 6 weeks postpartum at the San Diego VA. Between September 2017 and October 2018, 28 women volunteers completed the following measures: the Columbia-Suicide Severity Rating Scale (C-SSRS); the Beck Hopelessness Scale (BHS); the Edinburgh Postnatal Depression Scale (EPDS); and the PTSD Checklist for DSM-5 (PCL-5). We used correlational analyses and descriptive statistics to determine associations among the measures. RESULTS: As gathered from the C-SSRS, over 30% of the veteran women had past lifetime suicide attempts, and over 10% of the veterans had suicidal ideation in the perinatal period. Both depression and PTSS rates neared 30% during pregnancy and postpartum. Hopelessness and depressive symptoms were positively correlated at both time points. While the intensity of lifetime suicidal ideation was correlated with postpartum depressive symptoms, there was no correlation with current suicidal ideation and depressive symptoms. PTSS correlated with both depressive symptoms and hopelessness, but not suicidal ideation, at both time points. ...

AbstractEnhancing dopamine increases financial risk taking across adulthood but it is unclear whether baseline individual differences in dopamine function are related to risky financial decisions. Here, thirty-five healthy adults completed an incentive-compatible risky investment decision task and a PET scan at rest using [11C]FLB457 to assess dopamine D2-like receptor availability. Participants made choices between a safe asset (bond) and a risky asset (stock) with either an expected value less than the bond ("bad stock") or expected value greater than the bond ("good stock"). Five measures of behavior (choice inflexibility, risk seeking, suboptimal investment) and beliefs (absolute error, optimism) were computed and D2-like binding potential was extracted from four brain regions of interest (midbrain, amygdala, anterior cingulate, insula). We used canonical correlation analysis to evaluate multivariate associations between decision-making and dopamine function controlling for age. Decomposition of the first dimension (r = 0.76) revealed that the strongest associations were between measures of choice inflexibility, incorrect choice, optimism, amygdala binding potential, and age. Follow-up univariate analyses revealed that amygdala binding potential and age were both independently associated with choice inflexibility. The findings suggest that individual differences in dopamine function may be associated with financial risk taking in healthy adults.