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Daily Stressors (daily + stressor)
Selected AbstractsConditioning of stress in Nile tilapiaJOURNAL OF FISH BIOLOGY, Issue 4 2004P. S. A. Moreira A Pavlovian conditioning paradigm was used to induce a connection between a conditioned stimulus, light (CS), associated with an unconditioned stimulus, confinement (US) in Nile tilapia Oreochromis niloticus, which resulted in a conditioned endocrine response (CR) to the CS alone manifested as an increase in plasma cortisol. Individual isolated Nile tilapia were submitted for 10 days to the conditioning treatment consisting of turning on a light (CS) for 1 min with subsequent 30 min confinement (US). On the 10th day of the experiment, plasma cortisol was not increased when fish were subjected to no handling at all, or only light, or even a daily stressor for the 9 days. On the other hand, at the 10th day cortisol was significantly increased only when light was presented either with or without pairing with the stressor. These results confirmed that the cue, light (CS), was not stressful in itself, but when given as the CS in the absence of the US post conditioning the hypothalamus,pituitary,interrenal axis was activated. Therefore, it was concluded that memory of a previous experience with a stressor can be recalled by a conditioned stimulus and induce stress, which is the first demonstration of a memory-induced stress in fishes. [source] Subtle gene,environment interactions driving paranoia in daily lifeGENES, BRAIN AND BEHAVIOR, Issue 1 2009C. J. P. Simons It has been suggested that genes impact on the degree to which minor daily stressors cause variation in the intensity of subtle paranoid experiences. The objective of the present study was to test the hypothesis that catechol- O -methyltransferase (COMT) Val158Met and brain-derived neurotrophic factor (BDNF) Val66Met in part mediate genetic effects on paranoid reactivity to minor stressors. In a general population sample of 579 young adult female twins, on the one hand, appraisals of (1) event-related stress and (2) social stress and, on the other hand, feelings of paranoia in the flow of daily life were assessed using momentary assessment technology for five consecutive days. Multilevel regression analyses were used to examine moderation of daily life stress-induced paranoia by COMT Val158Met and BDNF Val66Met genotypes. Catechol- O -methyltransferase Val carriers displayed more feelings of paranoia in response to event stress compared with Met carriers. Brain-derived neurotrophic factor Met carriers showed more social-stress-induced paranoia than individuals with the Val/Val genotype. Thus, paranoia in the flow of daily life may be the result of gene,environment interactions that can be traced to different types of stress being moderated by different types of genetic variation. [source] Daily interpersonal events in pain patients: Applying action theory to chronic illnessJOURNAL OF CLINICAL PSYCHOLOGY, Issue 9 2006Mary C. Davis Action theory proposes that individuals actively shape and then respond to their environments, highlighting the role of stable person characteristics in the development and maintenance of life's interpersonal difficulties. In this study, the authors adopt the action perspective in their examination of predictors of daily interpersonal events among chronic pain patients with rheumatoid arthritis. They probe the extent to which stable symptoms of illness explained between-person variation, and fluctuating symptoms explain day-to-day variation in both positive and negative events. Their evaluation of patients' daily diary reports indicate that between-person differences accounted for more variance in the occurrence of positive events relative to negative events (48% vs. 31%, respectively). Likewise, between-person factors accounted for more variance in appraisals of positive compared to negative events across relationship domains. Both intractable illness symptoms and disability, and daily fluctuations in pain and fatigue, were only weakly related to patients' reports of their interpersonal experiences. Consistent with action theory, these results suggest that stable person characteristics are strongly related to daily stressors and particularly daily positive events in pain patients, but still account for less than 50% of the variance in events and their appraisals. In contrast, elevations in illness-related features, both between individuals and within individuals from day-to-day, are not robust predictors of positive or negative social exchanges. These findings point to the value of capturing the experiences of individuals intensively over time, an approach that can help to elaborate the contributions of both stable factors and circumstance in shaping social contexts in chronic illness. © 2006 Wiley Periodicals, Inc. J Clin Psychol 62: 1097,1113, 2006. [source] Nonstandard Work Schedules, Perceived Family Well-Being, and Daily StressorsJOURNAL OF MARRIAGE AND FAMILY, Issue 4 2008Kelly D. Davis Data from two studies assessed the effects of nonstandard work schedules on perceived family well-being and daily stressors. Study 1, using a sample of employed, married adults aged 25 , 74 (n = 1,166) from the National Survey of Midlife in the United States, showed that night work was associated with perceptions of greater marital instability, negative family-work, and work-family spillover than weekend or daytime work. In Study 2, with a subsample of adults (n = 458) who participated in the National Study of Daily Experiences, weekend workers reported more daily work stressors than weekday workers. Several sociodemographic variables were tested as moderators. Both studies demonstrated that nonstandard work schedules place a strain on working, married adults at the global and daily level. [source] THE RELATIONS OF DAILY COUNTERPRODUCTIVE WORKPLACE BEHAVIOR WITH EMOTIONS, SITUATIONAL ANTECEDENTS, AND PERSONALITY MODERATORS: A DIARY STUDY IN HONG KONGPERSONNEL PSYCHOLOGY, Issue 2 2009JIXIA YANG In this diary study conducted in Hong Kong, we examined a theoretical model in which negative emotions serve as an explanatory mechanism through which daily stressors impact daily counterproductive work behavior (CWB). We further theorized that personality variables (negative affectivity, Conscientiousness, and Agreeableness) would exert cross-level effects on the within-person relationships. Hierarchical linear modeling results based on a sample of 231 individuals and 5,583 observations across 25 days provide partial support for the mediating role of negative emotions in the within-person stressor,CWB relationships. Specifically, we found that negative emotions (a) partially mediated the within-person relation of perceived ambiguity with CWB directed at the organization, (b) fully mediated the relation of supervisor interpersonal injustice with CWB directed at individuals, and (c) fully mediated the relation of customer interpersonal injustice with CWB directed at the organization. High levels of trait negative affectivity were found to strengthen the within-person relation between daily supervisor interpersonal injustice and daily negative emotions. As expected, high levels of trait Conscientiousness and Agreeableness were found to weaken the within-person relations of daily negative emotions with daily CWB directed at the organization and individuals. [source] Rates and Impact of Trauma and Current Stressors Among Darfuri Refugees in Eastern ChadAMERICAN JOURNAL OF ORTHOPSYCHIATRY, Issue 2 2010Andrew Rasmussen Darfur refugees face hardships associated with chronic displacement, including lack of basic needs and safety concerns. Psychiatric research on refugees has focused on trauma, but daily stressors may contribute more to variance in distress. This article reports rates of past trauma and current stressors among Darfur refugees and gauges the contribution of each to psychological distress and functional impairment. A representative sample of 848 Darfuris in 2 refugee camps were interviewed about traumatic events, stressors faced in the camps, psychological distress, and functional impairment. Basic needs and safety concerns were more strongly correlated with measures of distress (rs = .19,.31) than were war-related traumatic events (rs = .09,.20). Hierarchical regression supported models in which effects of trauma on distress were mediated by current stressors. Although war-related traumatic events are the initial causes of refugees' hardship, findings suggest that the day-to-day challenges and concerns in camps mediate psychological distress associated with these events. [source] The psychological impact of forced displacement and related risk factors on Eastern Congolese adolescents affected by warTHE JOURNAL OF CHILD PSYCHOLOGY AND PSYCHIATRY AND ALLIED DISCIPLINES, Issue 10 2010Cindy Mels Background:, While the current knowledge base on the mental health effects of displacement is mainly limited to refugees residing in industrialised countries, this paper examines the impact of war-induced displacement and related risk factors on the mental health of Eastern Congolese adolescents, and compares currently internally displaced adolescents to returnees and non-displaced peers. Methods:, Data were collected from a community sample of 819 adolescents aged 13 to 21 years, attending one of 10 selected schools across the Ituri district in the Democratic Republic of Congo. Respondents completed culturally adapted self-report measures of posttraumatic stress symptoms (using the Impact of Event Scale , Revised) and internalising and externalising behaviour problems (by means of the Hopkins Symptoms Checklist , 37 for Adolescents). Associated factors studied were age, sex, parental death, exposure to war-related violence and daily stressors. Results:, Internally displaced persons (IDPs) reported highest mean scores for the IES-R and the HSCL-37A internalising scale, followed by returnees, while non-displaced adolescents scored significantly lower. However, ANCOVA tests showed that posttraumatic stress and internalising symptoms were mainly associated with traumatic exposure and daily stressors and not with displacement status. Externalising problem scores were associated with traumatic exposure, daily stressors and displacement. Remarkably, death of father was associated with fewer externalising problems. Sex was differently associated with internalising and externalising problems through traumatic and daily stressors. Conclusions:, As IDPs are highly exposed to violence and daily stressors, they report most psychological distress, when compared to returnees and non-displaced peers. The distinct mental health outcomes for returned youngsters illustrate how enhancing current socio-economic living conditions of war-affected adolescents could stimulate resilient outcomes, despite former trauma or displacement. [source] | ||||||||||