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181.
The present study investigates if genetic variation in the serotonergic system interacts with early adversity to predict changes in the Behavioral Approach System (BAS), a system that taps into reward processing. In a sample of community adults (N = 236) the influence of single serotonergic candidate polymorphisms on BAS was analyzed, we also examined the aggregate contribution of these genetic variants by creating a Cumulative Genetic Score (CGS). A CGS quantifies an individual’s cumulative risk by aggregating the number of risk alleles across the candidate polymorphisms. After individual gene analysis, three candidate genes rs7305115 (TPH2), rs6311 (HTR2A), and rs6295 (HTR1A) were combined into the CGS. There were no significant interactions between individual candidate polymorphisms and childhood adversity, but the CGS interacted with childhood adversity to explain a significant amount of variance (11.6%) in the BAS. Findings suggest that genetic variations in the serotonergic system in combination with childhood adversity contribute to individual differences in reward sensitivity. 相似文献
182.
Theoretically, disgust sensitivity and disgust proneness could play an important role in hypochondriasis, since disgust is a defensive emotion widely believed to protect the organism from illness. However, empirical evidence to support this hypothesis has so far been based only on nonclinical samples, so that the importance and specificity of disgust for hypochondriasis remains unclear. In the current study, 36 patients with hypochondriasis, 27 with an anxiety disorder, and 29 healthy controls completed several measures which included the assessment of disgust sensitivity (Scale for the Assessment of Disgust Sensitivity) and disgust proneness (Questionnaire for the Assessment of Disgust Proneness). We found that patients with hypochondriasis and those with an anxiety disorder had higher scores than those of the healthy controls for several measures of disgust proneness. Moreover, measures of hypochondriacal characteristics were associated with those of disgust proneness and disgust sensitivity. However, no differences were found between patients with hypochondriasis and those with anxiety disorders, with respect to disgust proneness and disgust sensitivity. Therefore, it can be assumed that disgust proneness and disgust sensitivity seem to be less specific than previously suggested for the development and maintenance of hypochondriasis. 相似文献
183.
Joshua J. Broman-Fulks Anna Urbaniak Carmen L. Bondy Kelsey J. Toomey 《Anxiety, stress, and coping》2014,27(6):619-632
High trait anxiety has been linked with risk-avoidant decision-making, though little is known regarding the specific facets of anxiety contributing to this negative association. Anxiety sensitivity (AS), a transdiagnostic vulnerability factor for anxiety-related pathology, may be particularly relevant to risk decision-making given that risk-taking behaviors generate heightened somatic arousal and produce many of the sensations feared by individuals with high AS. Two studies were conducted to investigate the relation between AS and risk decision-making. In the first study, 268 undergraduate students completed a series of questionnaires that included measures of AS and gambling behaviors. Significant negative correlations were observed between AS and several gambling-related risk-taking activities, and hierarchical multiple regression analyses indicated that AS scores added significant incremental validity in predicting risk-taking over and above demographic variables, negative affect, and trait anxiety. In the second study, 43 participants who had screened for high (n = 20) or low (n = 23) AS completed the Iowa gambling task, a behavioral measure of risk-taking. Results indicated that, when placed under conditions of risk, individuals with high AS engaged in significantly less risk-taking than their low AS counterparts. The implications of these findings and potential directions for future research are discussed. 相似文献
184.
Philip J. Phung Richard Moulding Jasmine K. Taylor Maja Nedeljkovic 《Scandinavian journal of psychology》2015,56(5):573-581
This study aimed to test which particular facets of emotion regulation (ER) are most linked to symptoms of hoarding disorder, and whether beliefs about emotional attachment to possessions (EA) mediate this relationship. A non‐clinical sample of 150 participants (108 females) completed questionnaires of emotional tolerance (distress tolerance, anxiety sensitivity, negative urgency – impulsivity when experiencing negative emotions), depressed mood, hoarding, and beliefs about emotional attachment to possessions. While all emotional tolerance measures related to hoarding, when considered together and controlling for depression and age, anxiety sensitivity and urgency were the significant predictors. Anxiety sensitivity was fully mediated, and urgency partially mediated, via beliefs regarding emotional attachment to possessions. These findings provide further support for (1) the importance of anxiety sensitivity and negative urgency for hoarding symptoms, and (2) the view that individuals with HD symptoms may rely on items for emotion regulation, leading to stronger beliefs that items are integral to emotional wellbeing. 相似文献
185.
Interoceptive sensitivity,body image dissatisfaction,and body awareness in healthy individuals
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Relationships among interoceptive sensitivity (IS), body image dissatisfaction, body mass index (BMI), and self‐reported body awareness were investigated in a cross‐sectional study. Eighty‐two Norwegian high school students and 70 Hungarian undergraduate university students participated in the study. Subjects completed two questionnaires (Body Image Ideals Questionnaire – BIQ; Body Awareness Questionnaire – BAQ) followed by the assessment of interoceptive sensitivity using the Mental Tracking Method (MTM). An inverse, medium‐level relationship between body image dissatisfaction and IS was found in both the Norwegian and the Hungarian samples. The relationships between IS and self‐reported body awareness, and between body image dissatisfaction and BMI were uniformly non‐significant in both samples. Predictors of body image dissatisfaction were resting heart rate, gender, and IS in the regression analysis after controlling for BMI, age, and nationality. The negative relationship between IS and body image dissatisfaction described in patients with anorexia nervosa also exists in healthy individuals. There is no direct connection between IS and self‐reported body awareness. 相似文献
186.
Taking an ecological systems perspective, early parent–child relationships can be affected by interactions between systems where some are more proximally linked to the child than others. Socioeconomic status, a distal factor, is associated with social functioning during childhood, but research on its association with functioning during infancy, particularly attachment, is scant and inconsistent. Moreover, it is not clear how distal factors affect infant functioning. Other systems such as marital adjustment and parenting may moderate or mediate relations between distal factors and infant attachment. The current longitudinal study (n = 135) examined the role of various systems – parental resources, marital functioning, parental sensitivity and involvement – in early infancy (3-, 5-, 7-months) on infant–mother (12-months) and infant–father (14-months) attachment security. Findings supported moderating processes but in different ways for infant–mother versus infant–father dyads. Implications for future studies and interventions are discussed. 相似文献
187.
The Reinforcement Sensitivity Theory proposes that the Behavioral Approach System (BAS) comprises dopaminergic brain regions and underpins reward sensitivity causing impulsivity. It has been shown in a supraliminal priming task that highly reward sensitive subjects have a larger reaction time (RT) priming effect and make more commission errors to prime-incongruent targets. We adapted a similar task to event-related fMRI and hypothesized that (1) high reward sensitivity is associated with increased activation in dopaminergic brain regions, the ventral striatum in particular, (2) that BAS related personality traits predict impulsivity and (3) that the BAS effects are larger after adjusting for the interactive influence of trait avoidance, as predicted by the Joint Subsystems Hypothesis. Fourteen healthy females participated in the fMRI experiment and were scored on sensitivity to reward (SR) and trait avoidance, i.e., sensitivity to punishment (SP) and neuroticism (N). SR scores were adjusted by SP and N scores. As hypothesized, adjusted SR scores predicted, more than SR scores alone, activity in the ventral striatum (left caudate nucleus and nucleus accumbens). SR+/ SP− scores predicted increased impulsiveness, i.e., a right side RT priming effect. These results support the Joint Subsystems Hypothesis. 相似文献
188.
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190.
Effects of contingencies of self‐worth and sensitivity to indebtedness on optimistic bias in seeking help for depression
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Yusuke Umegaki 《The Japanese psychological research》2015,57(4):331-347
The occurrence of the optimistic bias in seeking help for depressive symptoms has been attributed to the threat‐to‐self and equity theories. The current study tested the hierarchical relationships between contingencies of self‐worth (CSW), self‐esteem (SE), sensitivity to indebtedness (SI), and optimistic bias in seeking formal/informal help for depression. An online questionnaire survey was conducted with Japanese university students (n = 1000). Results from structural equation modeling analysis revealed the mediating effect of CSW on SE and optimistic bias. SI was positively related to optimistic bias in symptom recognition and informal help‐seeking. The results suggest that both CSW and SI are responsible for the occurrence of optimistic bias in seeking help for depression. Cognitive patterns in recognizing personal and others' depressive symptoms and needs for seeking help were discussed. 相似文献