The cortisol awakening response in caregivers of schizophrenic offspring shows sensitivity to patient status

Abstract

Taking care of offspring during a prolonged period of time is probably one of the most stressful life experiences for parents. The present study compares the cortisol awakening response (CAR) in 38 long-term caregivers (mothers and fathers of schizophrenic relatives) with a control group of 32 non-caregivers. Factors such as general stress, caregiver burden, patient severity, and institutionalization were studied. Although a blunted CAR was observed in caregivers in comparison with controls, this difference was not significant. Among caregivers, the absence of institutionalization for the patient is associated with a lack of CAR in caregivers in comparison with caregivers of institutionally supported patients. General stress, caregiver burden, and patient severity themselves did not favor significant changes in CAR. CAR shows greater sensitivity to institutional support than patient severity and perceived stress. Further research is needed to explain the impact of these factors on health and the psychological factors involved.     

Individual response differences in spider phobia: Comparing phobic and non-phobic women of different reactivity levels

Abstract

In contrast to previous stress research, studies concerning phobic disorders have never systematically investigated individual response differences between phobic participants integrating numerous different response measures. The aim of this article is to clarify the existence of significant individual response differences in psychophysiological responses (e.g., heart rate, skin conductance responses (SCR), corrugator, cortisol), subjective ratings (e.g., valence, arousal), and avoidance behavior in 46 spider phobic and 44 non-phobic women when exposed to 20 phobic and 20 neutral pictures. Previous studies that did not attend to individual response differences showed that, during phobic stimulation, phobic individuals have increased psychophysiological responses (heart rate, SCR, and corrugator responses), more negative valence rating, and more subjective arousal than non-phobic individuals. These results were confirmed by our data. With regard to individual response uniqueness, 1/3–2/3 of spider-phobic women with low responsiveness in heart rate, cortisol, and avoidance behavior were indistinguishable from non-phobic women during phobic stimulation. With SCR, corrugator EMG, and subjective ratings, no individual response uniqueness was found. Based on the findings, exposure therapy might be improved by tailoring interventions to individuals with a therapeutic focus on those psychophysiological measures that show the highest individual responsivity.     

Volunteers in Disaster Response

Abstract

Terrorism directed against the United States abroad and at home during the 1990s, in conjunction with the ongoing terrorist threat and use of weapons of mass destruction, and mass casualty disasters demanded a reexamination of national security and disaster response. Strategies to confront current threats and meet population needs include increasing collaboration and cooperation among federal, state, and county agencies and voluntary organizations. The American Red Cross has implemented training to familiarize participants with terrorist threats and the characteristics of chemical, biological, radiological, nuclear, and explosive weapons and has introduced technological changes to speed up service delivery at disasters.     

Rape: A Trauma of Paralyzing Dehumanization

This study examines the pathogenic role of rape-induced peritraumatic dehumanization, and subsequent humiliation and “freezing.” A theoretical causal model linking these rape-related peritraumatic responses to symptoms is tested while considering the ways in which rape differs from other types of nonsexual trauma in relation to this particular model. Two hundred and fifty-five participants completed self-report questionnaires. Structural path analyses identified dehumanization and humiliation as highly prevalent and almost invariably predictive of a freeze response in rape; and, in turn, of elevated self-blame and post-traumatic stress disorder in its wake while concurrently showing a poor fit for this model in respect to other traumas. In addition, multivariate analysis of variance results indicated that peritraumatic, as well as post-traumatic distress, was considerably more severe among rape survivors as compared to controls.     

Dissimilar effects of task‐relevant and interpersonal threat on independent–interdependent self‐construal in individuals with high self‐esteem

Previous research has indicated that individuals with high trait self‐esteem (HSEs) become more independent and less interdependent after experiencing a task‐relevant threat. However, these studies have not investigated other sources of ego threats, such as interpersonal threats. Therefore, the moderating effects of the degree of trait self‐esteem on task‐relevant and interpersonal ego threats were investigated in relation to independent, or interdependent self‐construal. It was predicted that in HSEs, the level of task‐relevant stress would be positively–negatively related to their independence–interdependence, whereas the level of interpersonal stress would be negatively–positively related to their independence–interdependence. In individuals with low trait self‐esteem (LSEs), the two types of stresses and independent–interdependent self‐construal may not have a significant relationship. We conducted a questionnaire survey with undergraduates. Correlational analysis of the results indicated that in HSEs, greater task‐relevant stress was related to heightened independence, whereas greater interpersonal stress had the opposite effect, indicating lower independence and heightened interdependence. However, these stresses were not related to the self‐construal of LSEs. These findings suggest that task‐relevant and interpersonal threat could have differential effects on independent and interdependent self‐construal for HSEs, but not in LSEs.     

How does higher in‐group social value lead to positive mental health? An integrated model of in‐group identification and support

Previous research has indicated that the effects of in‐group social value on mental health are mediated by the extent to which individuals identify with their in‐group. Other research has shown that in‐group identification leads to positive mental health because it provides in‐group members with a psychological basis for social support. We examine how the individual's perception of the social value of the in‐group leads to positive mental health, integrating the effects of identification with and support from the in‐group. As predicted, the relationship between higher social value and decreased mental health (e.g. depression, perceived stressful events) is mediated by higher in‐group identification, which in turn leads the members to expect support from the in‐group but not the out‐group. An integrated model of the effects of perceived in‐group social value, identification, and support on mental health is proposed, and the implications are discussed.     

The importance of social and ideal social dimensions in self‐congruity research

Chronic or situational self‐construal moderates the effects of four self‐congruity (SC) dimensions (i.e., actual, ideal, social, and ideal social) on brand evaluations. Past research has mainly focused on the actual and ideal SC effects; these effects have been found to be stronger than the social and ideal social SC effects. However, the findings of past research are based on samples from individualistic cultures. Individualists have a dominant independent self‐construal. We conduct two experiments to show that the social and ideal social SC effects are stronger than the actual and ideal SC effects for individuals with a dominant interdependent self‐construal. In Study 1, using samples from collectivistic cultures, four SC effects are compared. In Study 2, we examine how primed self‐construal, whether independent or interdependent, impacts the four SC effects. This research documents the importance of the social and ideal social dimensions in SC research.     

Stressors and well‐being in low socio‐economic status Malaysian adolescents: The role of resilience resources

The present study examined the relationship between stressors, resilience resources, and well‐being in adolescents with low socio‐economic status in Malaysia. The specific aims were: (i) to differentiate between resilient and non‐resilient adolescents in terms of their resilience resources; and (ii) to examine the role of resilience resources on the relationship between stressors and well‐being. In a sample of 197 adolescents aged 12–16 years (mean = 13.77, sd = 1.49), results of the k‐mean clustering technique identified 37.5% of the adolescents as resilient (high stressor, high well‐being), 31.0% as maladjusted (high stressor, low well‐being), and the rest, adapted (low stressor, high well‐being). Resilient adolescents were found to have significantly higher scores on all the identified resilience resources (personality, mother–child communication, social support, school coherence, and teacher support) compared to the non‐resilient maladjusted group. Results of structural equation modelling also showed that these resilience resources acted both as mediator and moderator in the relationship between stressors and well‐being. These findings are discussed with respect to the current literature on resilience and well‐being.     

Using Twitter to Teach Reader‐Oriented Biblical Interpretation: “Tweading” the Gospel of Mark

Twitter offers an engaging way to introduce students to reader‐oriented interpretation of the Bible. The exercise described here introduces students to the idea that the reader has a role in the production of a text's meaning, which thus varies from reader to reader. Twitter enables us to capture the real‐time thoughts of a variety of respondents to the text of Mark as it is read aloud. Students can concretely observe the effects of particular textual moments on individual respondents as well as analyze their general interpretive stances with regard to the text as a whole. Students come to grasp that the meaning of the text varies depending on the reader, setting the stage for more complex theoretical discussion of reader‐response theory, the reader's role in the production of meaning, the adjudication of “allowed” and “disallowed” interpretations, and the appropriateness of “reader‐response” criticisms for texts that were composed to be encountered orally.     

Age-related changes in deterministic learning from positive versus negative performance feedback

Feedback-based learning declines with age. Because older adults are generally biased toward positive information (“positivity effect”), learning from positive feedback may be less impaired than learning from negative outcomes. The literature documents mixed results, due possibly to variability between studies in task design. In the current series of studies, we investigated the influence of feedback valence on reinforcement learning in young and older adults. We used nonprobabilistic learning tasks, to more systematically study the effects of feedback magnitude, learning of stimulus–response (S–R) versus stimulus–outcome (S–O) associations, and working-memory capacity. In most experiments, older adults benefitted more from positive than negative feedback, but only with large feedback magnitudes. Positivity effects were pronounced for S–O learning, whereas S–R learning correlated with working-memory capacity in both age groups. These results underline the context dependence of positivity effects in learning and suggest that older adults focus on high gains when these are informative for behavior.