Sleep deprivation and stressors: Evidence for elevated negative affect in response to mild stressors when sleep deprived

Stress often co-occurs with inadequate sleep duration, and both are believed to impact mood and emotion. It is not yet known whether inadequate sleep simply increases the intensity of subsequent stress responses or interacts with stressors in more complicated ways. To address this issue, we investigated the effects of one night of total sleep deprivation on subjective stress and mood in response to low-stress and high-stress cognitive testing conditions in healthy adult volunteers in two separate experiments (total N = 53). Sleep was manipulated in a controlled, laboratory setting and stressor intensity was manipulated by changing difficulty of cognitive tasks, time pressure, and feedback about performance. Sleep-deprived participants reported greater subjective stress, anxiety, and anger than rested controls following exposure to the low-stressor condition, but not in response to the high-stressor condition, which elevated negative mood and stress about equally for both sleep conditions. These results suggest that sleep deprivation lowers the psychological threshold for the perception of stress from cognitive demands but does not selectively increase the magnitude of negative affect in response to high-stress performance demands. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

Differentiation of Self in Family Members’ of SUD Loved Ones: An Analysis of Prefrontal Cortex Activation

Substance use disorders (SUDs) are a chronic disease that impacts the individual with a SUD as well as an entire family system. While family members of those with SUDs are one of the most important support networks in the recovery process, impacted family members have been found to experience more adverse health outcomes and altered functioning of the prefrontal cortex (PFC). These impacts negatively influence not only family members’ personal health but also the health of the family unit, which limits the family’s capability of providing its most effective support. Bowen’s conceptualization of differentiation of self can help explain the perspective of SUDs as a “family disease” and associated impacts on family members. Using functional near-infrared spectroscopy with a sample of 26 SUD-impacted family members, the present study examined associations between PFC activation in response to images of a loved-one seeking abstinence from a SUD and various components of differentiation of self (i.e., emotional cutoff, emotional reactivity, fusion with others, and I-position). Activation of the left dorsomedial PFC in response to SUD loved-one images associated negatively with emotional reactivity and positively with fusion with others. These findings did not replicate in a control group and have important implications for research and clinical practice.

     

An Illustration of Diagnostic Classification Modeling in Student Learning Outcomes Assessment

The assessment of higher-education student learning outcomes is an important component in understanding the strengths and weaknesses of academic and general education programs. This study illustrates the application of diagnostic classification models, a burgeoning set of statistical models, in assessing student learning outcomes. To facilitate understanding and future applications of diagnostic modeling, the log-linear cognitive diagnosis model used in this study is presented in a didactic manner. The model is applied in a context where undergraduate students were assessed along four learning outcomes related to psychosocial research across two time points. Results focus on implications and methods to aid stakeholders’ interpretation of the analyses. Contrasts to traditional measurement models and potential future applications are also discussed.     

A systematic review of the literature on counselling and psychotherapy for the prevention of suicide: 1. Quantitative outcome and process studies

Scope of review: The paper reports a meta‐review of 15 previous systematic reviews and meta‐analyses of the literature concerning the outcome of counselling and psychotherapy with people at risk of suicide; a meta‐analysis of 67 outcome studies in this area; and a narrative review of 17 studies of the therapeutic process. Publication time span: The literature reviewed was published between 1981 and 2008. Publication origin: The majority of the literature reviewed was by authors from the USA or the UK, but there were also authors from other European countries, Australia, Canada, India, and Sri Lanka. Findings: There is evidence of the effectiveness of dialectical behaviour therapy, cognitive‐behavioural therapy, and problem solving therapy, but also for other forms of therapy. Therapist and client variables, as well as the therapeutic relationship, appear to be related to treatment outcome. Conclusions: People at risk of suicide should have access to psychological interventions, including, but not necessarily limited to, those within the cognitive‐behavioural spectrum. Therapies for which there have been promising findings, but which are under‐researched, should be a research priority.     

Religious Experiences of GBTQ Mormon Males

This article examines the relationship between sexual orientation and religious experience of men from early adolescence to adulthood. Data have been obtained from an online survey of 1,042 males who were part of a larger sample of lesbian, gay, bisexual, transgender, and queer/questioning (LGBTQ) persons who are current or former members of the Church of Jesus Christ of Latter‐Day Saints (LDS, Mormon). While early religious experience was essentially identical to that of heterosexuals, the gap between religious norms and experience widened as these men moved through early and mid‐adulthood. Those who married did so at a later age, and experienced a high rate of divorce. Continued participation, integration, and conformity to LDS ideals was not attributable to faith in, or a departure from, fundamental doctrinal belief. Instead, the responsible variable was sexual orientation, measured by the Kinsey Scale scores across behavior, attraction, and identity. For those near the exclusively homosexual end of the spectrum, the failure to change sexual orientation after intense effort over many years resulted in loss of belonging, belief, and participation, along with increased negative emotions and a sense of mistreatment.     

Talking normalization: the role of communication in integration

Deinstitutionalization has generally had a positive impact on the lives of people with learning disabilities, although provision of appropriate and individualized support in the community has proved difficult. Communication is often seen in isolation, its role within integration passing unacknowledged. This paper suggests an integrated framework around individual needs. Copyright © 2002 John Wiley & Sons, Ltd.     

Effects of Expectancy and Attention in Vibrotactile Choice Reaction Time Tasks

The orienting of attention in space has not been considered in the tactile domain. This issue is examined using a modified version of a visual paradigm initially adopted by Posner, Snyder, and Davidson (1980), which manipulates the probability of a stimulus occurring at different spatial locations. Slower RTs at an unexpected stimulus location are thought to reflect the time required to shift attention from the expected to the unexpected location. In two experiments involving vibrotactile choice RT between left and right hands, the two hands were either crossed or uncrossed, and the hands were held both on the left side of the body, both on the right, or one on either side of the midline. There was no evidence to suggest that spatial location (left or right) affected the orienting of attention in the tactual modality. As predicted, RTs were slower when the arms were crossed compared with uncrossed, though this effect was smaller for the expected trials. A coding conflict hypothesis may explain both these findings, but the smaller effect in the expected trials may also reflect attentional factors. Both the relative and absolute location of the hands affected the magnitude of the crossed-arm effect and indicated that attention may play a role in the perceptual division of space into left and right sides. Possible reasons for hand or hemispace asymmetries in different simple and choice RT paradigms were discussed.     

Mapping of extracorporeal space by vibrotactile reaction times: a far-left-side disadvantage

Vibrotactile reaction times in normal dextrals were measured for the two hands separately when either hand was located at each of seven possible positions: 90 degrees, 45 degrees, and 15 degrees to the left and right of the chest midline, and at the midline itself (0 degrees). Reaction times for the two hands did not differ and there was no Hand by Position interaction. At 90 degrees left, reaction times were significantly slower than at any other position except 45 degrees right. However, none of the other positions, including 45 degrees right, differed from each other. Performance in this task, therefore, was relatively uniform from 90 degrees right to 45 degrees left, but markedly slower at 90 degrees left. This far-left-side disadvantage may reflect a difficulty (for dextrals) in focussing covert attention in the far-left part of space for a block of trials. Since vibrotactile reaction times are sensitive to attentional factors in normal subjects, the paradigm should allow quantification of the clinical symptoms of the hemineglect syndrome; some preliminary observations of this syndrome with another vibrotactile design are reported.