Electrodermal lability in anxiety disorders

Twenty-eight anxiety patients, aged below 50 years, were diagnosed according to DSM-III-R criteria (panic disorder with and without agoraphobia, generalised anxiety disorder, and anxiety disorder not otherwise specified). The patients were characterised by high levels of state and trait anxiety and neuroticism, compared with the controls. However, there were no differences between patients and controls in electrodermal habituation rate, non-specific activity, or skin resistance level. When the patients were divided into electrodermally labile and stable subjects, significant differences were found between patients and controls in both electrodermal activity and Eysenck's personality dimensions. The labile patients were more introverted and attained higher psychoticism scores than either the stable patients or controls. Duration of anxiety symptoms removed the difference found in extroversion, but not in any other variable. The results are discussed in relation to the utility of electrodermal measurements in validation of diagnostic entities. It is concluded, that from the psychophysiological point of view, anxiety disorders may be examined within a dimensional framework.     

Bullying in work groups: The impact of leadership

The aim of this study is to examine whether and how laissez‐faire, transformational, and authentic leadership styles are related to the occurrence of bullying in work groups. It is hypothesized that the investigated leadership styles have direct associations, as well as indirect associations through group cohesion and safety perceptions, with indicators of bullying among subordinates. Using a cross‐sectional survey design, the variables were assessed in a randomly selected sample comprising 594 seafarers from two Norwegian shipping companies. Laissez‐faire leadership was associated with an increased risk of exposure to bullying behavior, self‐labeled victimization from bullying, and perpetrated bullying. Transformational leadership and authentic leadership were related to decreased risk of exposure to bullying behavior. Authentic leadership contributed to the variance in bullying beyond laissez‐faire and transformational leadership. Analyses of indirect effects showed that the association between transformational leadership and bullying was fully mediated through safety perceptions, whereas a partial indirect association through safety perceptions was found for authentic leadership. This study makes a significant contribution to the literature by providing evidence for how leadership styles predict workplace bullying. The findings highlight the importance of recruiting, developing, and training leaders who promote both positive psychological capacities and positive perceptions among their subordinates.     

Effects of mood and knowledge on evaluations: An experimental study

An experimental study was conducted to estimate the impact of subjects' mood states on their responses to evaluative ratings. Four experimental groups were induced by either a very negative, mildly negative, neutral or positive mood-inducing film. As hypothesized, systematic differences were found between the groups in their evaluations. Factual knowledge about the evaluation object was, contrary to expected, not found to modify mood effects. This negative finding could, however, be explained by a strong stereotypical impression of the object (a distant travel destination) held by the respondents.     

Gender Differences in Healthcare Utilization: The Mediating Effect of Utilization Propensity

To evaluate the mediating effect of utilization propensity (UP) on gender differences in healthcare utilization (HCU), a representative sample of the German general population (N = 2,510) was assessed with questionnaires. Gender differences in HCU, UP, and the mediating effect of UP were investigated using regression analyses. UP was significantly associated with HCU. The explanatory power of gender for UP, and of UP for HCU was prevailingly weak. UP had a mediating effect on gender differences in HCU, but the effect was very small. This is partly attributable to common problems in the prediction of behavior by attitudes and the operationalization of UP.     

The Mental Vulnerability Questionnaire: A psychometric evaluation

Eplov, L.F., Petersen, J., Jørgensen, T., Johansen, C., Birket‐Smith, M., Lyngberg, A. C. & Mortensen, E. L. (2010). The Mental Vulnerability Questionnaire: A psychometric evaluation. Scandinavian Journal of Psychology 51, 548–554. The Mental Vulnerability Questionnaire was originally a 22 item scale, later reduced to a 12 item scale. In population studies the 12 item scale has been a significant predictor of health and illness. The scale has not been psychometrically evaluated for more than 30 years, and the aim of the present study was both to evaluate the psychometric properties of the 22 and 12 item scales and of three new scales. The main study sample was a community sample comprising more than 6,000 men and women. In this sample the coefficients of homogeneity were all over 0.30 for the three new scales, but below 0.30 for the 12 and the 22 item scales. All five Mental Vulnerability scales had positively skewed score distributions which were associated significantly with both SCL‐90‐R symptom scores and NEO‐PI‐R personality scales (primarily Neuroticism and Extraversion). Coefficient alpha was highest for the 22 and 12 item scales, and the two scales also showed the highest long‐term stability. The three new scales reflect relatively independent dimensions of Psychosomatic Symptoms, Mental Symptoms, and Interpersonal Problems, but because of reliability problems it remains an open question whether they will prove useful as predictors of health and morbidity.     

A randomized pilot study of mindfulness‐based cognitive therapy and group cognitive‐behavioral therapy for young adults with social phobia

Piet, J., Hougaard, E., Hecksher, M. S., & Rosenberg, N. K. (2010). A randomized pilot study of mindfulness‐based cognitive therapy and group cognitive‐behavioral therapy for young adults with social phobia. Scandinavian Journal of Psychology, 51, 403–410. Twenty‐six young participants, 18–25 years, with social phobia (SP) were randomly assigned to eight 2‐hour sessions of group mindfulness‐based cognitive therapy (MBCT) and twelve 2‐hour sessions of group cognitive‐behavioral therapy (CBT) in a crossover design with participants receiving treatments in reversed order. Outcome was assessed after treatments, and at 6‐ and 12‐month follow‐ups. MBCT achieved moderate‐high pre‐post effect sizes (d = 0.78 on a composite SP measure), not significantly different from, although numerical lower than those of CBT (d = 1.15). Participants in both groups further improved in the periods following their first and second treatment until 6‐months follow‐up (pre‐follow‐up ds = 1.42 and 1.62). Thus, MBCT might be a useful, low cost treatment for SP, although, probably, less efficacious than CBT.