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111.
Type D personality is predictive of adverse clinical outcome and psychological distress in cardiac patients. However, the mechanisms by which Type D affects health are largely unknown. This study (1) investigated the relationship between Type D and cardiovascular reactivity to experimentally induced stress and (2) tested the influence of Type D on subjective feelings of stress. Eighty four healthy young adults (50% males, mean (SD) age 22 (6.84) years), completed measures of Type D personality, stress arousal and a stress-inducing procedure involving a taxing mental arithmetic task. Cardiovascular measures were recorded throughout the experiment. Mixed measures ANOVA showed a significant main effect of Type D and a significant group by time effect of Type D on cardiac output in male participants. Type D males exhibit significantly higher cardiac output during the stressor phase compared to non-Type D males. However, there was no relationship between Type D and cardiovascular reactivity in females. In addition, Type D individuals exhibited significantly higher feelings of subjective stress compared to non-Type D's. These findings provide new evidence on Type D and suggest that Type D may affect health through increased cardiac output and higher subjective feelings of stress following acute stress. 相似文献
112.
Objective: Although traditional models posit that negative emotional responses to stress increase cardiovascular reactivity (CVR), laboratory studies have generally not found a strong emotion–CVR association. In this paper, we took a multidimensional approach to examining psychological reactions to stress in three studies.Methods: In each study we assessed the amount of effort exerted by a participant and the negative affect (NA) felt by the participant with different self-reported measures and an effort behavioural measure.Results: Our findings consistently demonstrated that NA was associated with CVR when effort was relatively high, but not when effort was relatively low.Conclusion: This suggests that the weak NA–CVR correlations reported in past research may have been confounded by a third effort-related variable and that CVR is significantly associated with NA under certain circumstances. Furthermore, our findings suggest that by considering the multidimensional nature of psychological responses to stress, we may come to better understand the links between stress-related emotion and physiology. 相似文献
113.
Objective: Recent research has pointed to the cardiovascular benefits of providing social support to others in times of stress; however, little is known about what factors influence such benefits.Design and measures: In a between-groups design, we investigated the possible interaction between intimacy (friend vs. stranger) and support type (active vs. passive) in determining the cardiovascular responses of support providers. Eighty participants had their blood pressure and heart rate monitored while providing either active or passive social support to a friend or a stranger who completed a stress task.Results: Although there was no interaction effect, a significant main effect showed that those who provided passive support showed larger decreases relative to those in the active support condition. There was no effect of intimacy. Further, these effects withstood adjustment for a number of potential confounds (e.g. sex and body mass index).Conclusion: It appears that the greatest physiological benefit for social support providers may come from providing passive, rather than active support, regardless of whether the support receiver is a friend or a stranger. 相似文献
114.
Michelle E. Costanzo John W. VanMeter Christopher M. Janelle Allen Braun Matthew W. Miller Jessica Oldham 《Journal of motor behavior》2013,45(6):573-588
Skilled individuals demonstrate a spatially localized or relatively lower response in brain activity characterized as neural efficiency when performing within their domain of expertise. Elite athletes are experts in their chosen sport and thus must be not only adept in the motor domain but must be resilient to performing under the stress of high-level competition. Such stability of performance suggests this population processes emotion and mental stress in an adaptive and efficient manner. This study sought to determine if athletes with a history of successful performance under circumstances of mental stress demonstrate neural efficiency during affective challenges compared to age-matched controls. Using functional magnetic resonance imaging, the blood-oxygen level–dependent response was recorded during emotional challenge induced by sport-specific and general unpleasant images. The athletes demonstrated neural efficiency in brain regions critical to emotion regulation (prefrontal cortex) and affect (insula) independently of their domain of expertise, suggesting adaptive processing of negative events and less emotional reactivity to unpleasant stimuli. 相似文献
115.
Brandon J. Cosley Shannon K. McCoy Laura R. Saslow 《Journal of experimental social psychology》2010,46(5):816-823
The present study examined the role of compassion for others and social support in physiological stress reactivity. In this experiment, participants who had previously completed an online assessment of compassion experienced a social stress task in front of either two supportive or neutral evaluators, while their blood pressure, cortisol, high frequency heart rate variability (HF-HRV), and liking for the evaluators were monitored. Participants’ compassion for others interacted with social support condition to buffer their physiological reactivity to stress. When provided with social support during the task, higher trait compassion was associated with lower blood pressure reactivity, lower cortisol reactivity, and higher HF-HRV reactivity. Higher compassion was also associated with greater liking for the supportive evaluators. These relationships were not observed for participants in the neutral condition, regardless of their trait compassion. Compassion for others may increase our ability to receive social support, which may lead to more adaptive profiles of stress reactivity. 相似文献
116.
The purpose of this paper is to explore whether the human body’s stress reactivity in response to trauma may be a possible developmental mediator between childhood abuse and the development of fibromyalgia (FM). Four points are emphasized in this article. First, studies that have examined the prevalence of childhood physical, emotional, and sexual abuse in FM patients are evaluated. Second, health and neuroendocrine differences between abused and non-abused FM patients are examined. Third, studies that tested the association between childhood abuse and stress reactivity characterized by neurobiological abnormalities are reviewed. Fourth, studies that have investigated the association between stress reactivity and FM are analyzed. The results of the reviews showed significant associations between childhood abuse and FM, childhood abuse and stress reactivity, and stress reactivity and FM, indicating that childhood abuse may be one of the etiological factors that could lead to abnormal brain development, affecting stress reactivity, and ultimately lead to the development of FM. 相似文献
117.
118.
《Journal of Cognitive Psychology》2013,25(6):715-724
The study investigated whether the strength of the relationship between attentional and implicit-memory biases for threat-related material can be moderated by individual differences in temperament and personality. A spatial cueing task, where task-irrelevant angry, happy, and neutral faces acted as spatial cues preceding a target, was immediately followed by an unexpected “old/new” task involving previously presented faces. Temperament-based emotional reactivity (ER; one's typical response strength to emotional stimuli) predicted improved memory performance for angry faces in the “old/new” task. Critically, the relationship between the attentional bias towards threat (indexed by a cue validity index, i.e., a difference in response times on trials where cues with angry expression were presented in the same versus different location to the subsequent target) and enhanced implicit-memory for previously presented task-irrelevant threat-related information was found to be moderated by ER. The current findings provide the first evidence that temperament traits can offer novel insights into the mechanisms enhancing cognitive biases towards threat in the typical population. 相似文献
119.
This study examined the contribution of illness severity and attachment style to marital satisfaction among mothers of infants with Congenital Heart Disease (CHD) as well as the mediating role of cognitive appraisal and ways of coping with motherhood tasks. Eighty-five mothers of newborns with CHD rated their attachment style 2 weeks after the infant's CHD diagnosis and two physicians rated the severity of the disease. One year later, mothers completed self-reports scales tapping marital satisfaction, appraisal of motherhood tasks, and ways of coping with these tasks. The severity of infant's disease and mothers’ attachment anxiety and attachment avoidance were related to less marital satisfaction. Moreover, whereas illness severity and attachment anxiety had direct effects on marital satisfaction, the negative effects of attachment avoidance were mediated by the appraisal of motherhood in threatening terms and the reliance on emotion-focused coping. The interconnections between attachment style, the process of coping with the stress of a chronic illness, and marital satisfaction were discussed. 相似文献
120.
Abstract This review considers recent research assessing psychophysiological reactivity to fear imagery in anxiety disorder patients. As in animal subjects, fear cues prompt in humans a state of defensive motivation in which autonomic and somatic survival reflexes are markedly enhanced. Thus, a startle stimulus presented in a fear context yields a stronger (potentiated) reflex, providing a quantitative measure of fearful arousal. This fear potentiation is further exaggerated in specific or social phobia individuals when viewing pictures or imagining the phobic object. Paradoxically, fear imagery studies with more severe anxiety disorder patients – panic disorder with agoraphobia, generalized anxiety disorder, or anxious patients with comorbid depression – show a blunted, less robust fear potentiated response. Furthermore, this reflex blunting appears to systematically be more pronounced over the anxiety disorder spectrum, coincident with lengthier chronicity, worsening clinician-based judgments of severity and prognosis, and increased questionnaire-based indices of negative affectivity, suggesting that normal defensive reactivity may be compromised by an experience of long-term stress. 相似文献