Associations of depression status and hopelessness with blood pressure: a 24-year follow-up study

Hypertension is estimated to cause 12.8% of all deaths worldwide. Both literature and well-supported cognitive models indicate that hopelessness predicts depressive symptoms. This study aimed to test whether high levels of hopelessness are associated with increased blood pressure, as well as whether depression acts as a mediator between hopelessness and blood pressure. Data from the original 24-year longitudinal Baltimore Epidemiologic Catchment Area Study (ECA) were analyzed via linear regression (N = 917; 60.3% female; 62.9% European American; mean age = 42.96 years, SD = 16.94). Hopelessness was found to have a significant direct relationship with systolic blood pressure (SBP, p < .05), but not with diastolic blood pressure (DBP, p > .05); while depression had no significant direct relationship with SBP or with DBP. Overall, findings indicated that hopelessness has a significant relationship with SBP. Limitations and implications are discussed.     

Longitudinal associations between athletes' controlled motivation,ill-being,and perceptions of controlling coach behaviors: A Bayesian latent growth curve approach

Although many scholars have argued that leadership is a dynamic process jointly produced by leaders and followers, leadership in sports is most often researched as a unidirectional process from coaches to athletes. Within self-determination theory (SDT), individual characteristics are suggested to influence how people perceive external events such as coaches' behaviors. In the present study, we examined this jointly produced leadership process by investigating longitudinal associations between athletes' controlled motivation, ill-being, and perceptions of coaches' controlling behaviors at the between- and within-person levels. The participants were 247 young elite skiers enrolled at Swedish sport high schools who responded to self-report questionnaires at three time points over the course of an athletic season. At the between-person level, increases in perceptions of coaches' controlling behaviors over the season positively predicted controlled motivation at the end of the season, and controlled motivation at the beginning of the season positively predicted ill-being at the end of the season. At the within-person level, athletes' controlled motivation positively predicted perceptions of coaches' controlling behaviors. The results at the between-person level support the unidirectional perspective and the tenets of SDT. The results at the within-person level suggest that individual characteristics such as motivation can influence how athletes perceive external events, which has been proposed theoretically but seldom examined empirically. Three plausible explanations for this reversed association are presented in the discussion.     

How Self-Perceptions of Identity Change in Person,Role, and Social Identities Relate to Depression

This study uses a cross-sectional research design to examine how individuals perceive recent experiences of identity change in various person, role, and social identities. Specifically addressed is how self-perceptions regarding the magnitude and direction of one’s experience of identity change relate to depression. A survey was administered to 854 study participants that measured perceived changes in 12 discrete identities (four person, four role, and four social identities) over a 6-month period. The results reveal that the more severe one perceives their experience of identity change to be, the greater their level of depression. However, generally, when one perceives that the direction of their identity change is progressive (rather than regressive), they are less likely to be depressed.     

Positive schizotypal symptoms predict treatment outcome in obsessive-compulsive disorder

Previous research has suggested that the presence of schizotypal personality disorder may represent a risk factor for treatment failure in obsessive-compulsive disorder (OCD). Relying on a dimensional approach, the present study investigated whether the predictive importance of schizotypal personality is shared by all of its features to the same extent or whether it is confined to a subset of symptoms. Fifty-three patients underwent multi-modal cognitive-behavioral therapy with or without adjunctive antidepressive medication. Therapy response was defined as a 35% decline of the Y-BOCS total score. At baseline assessment, patients were asked to fill out the schizotypal personality questionnaire, the perceptual aberration scale and the Beck depression inventory. Stepwise regression analysis and group comparisons conducted with the schizotypal and depression scales revealed that elevated scores in the positive schizotypal scales, especially perceptual aberrations, were highly predictive for treatment failure. Responders to treatment and non-responders did not significantly differ on other variables or on scores in two scales which measured response biases. The study provides evidence that positive schizotypal symptoms are antecendents for treatment failure in OCD. It needs to be evaluated whether these at-risk individuals benefit from additional intervention, such as the adminstration of low-dose atypical neuroleptics and specifically tailored behavorial intervention.     

Cognitive therapy outcome: the effects of hopelessness in a naturalistic outcome study

This study prospectively examined the effect of hopelessness on outcome in cognitive therapy. Hopelessness has a central role in cognitive theories of depression, and consistently predicts suicide attempts and suicide completion. Furthermore, there is indirect evidence that hopelessness predicts cognitive therapy outcome, in terms of early termination of therapy, perhaps in part because theories of therapy change suggest that "remoralization" is a critical first phase of change. It was hypothesized that hopelessness non-responsiveness early in therapy would be predictive of eventual outcome, over and above hopelessness severity at intake. In a naturalistic study of 122 patients diagnosed with unipolar depression, it was found that non-responsive hopelessness predicted outcome in cognitive therapy, and this effect is over and above any effect of initial severity of hopelessness or depression. These findings suggest that patients whose level of hope is responsive to early interventions make more rapid and pronounced improvements during "real world" cognitive therapy.     

Endurance exercise selectively impairs prefrontal-dependent cognition

Two experiments are reported that examine the possibility that exercise selectively influences different types of cognition. To our knowledge, these experiments represent the first attempt to study higher-cognitive processes during exercise. Theoretical thinking was guided by the transient hypofrontality hypothesis. In both experiments, athletes who exercised at a sustained, moderate pace were compared to sedentary controls on two neuropsychological tests, one that is generally regarded as heavily dependent on prefrontal cognition and one that is relatively insensitive to prefrontal operation. Results showed that during exercise performance on tests demanding prefrontal-dependent cognition was impaired, while at the same time, cognitive processes requiring little prefrontal activity were unaffected.     

Anxiety sensitivity interacts with marijuana use in the prediction of anxiety symptoms and panic-related catastrophic thinking among daily tobacco users

The present investigation evaluated whether anxiety sensitivity interacted with marijuana use in relation to the prediction of panic-relevant variables among young adult tobacco smokers (n=265). Approximately 73% of the sample was composed of current marijuana smokers, with 78.5% of this sub-sample using marijuana more than once per week. As expected, after covarying cigarettes per day, alcohol use, and negative affectivity, the interaction between marijuana use and anxiety sensitivity predicted anxiety symptoms and agoraphobic cognitions. Partially consistent with prediction, the interaction between frequency of marijuana use and anxiety sensitivity predicted only anxiety symptoms. These results are discussed in relation to better understanding the potential role of regular marijuana use and anxiety sensitivity for panic-relevant emotional vulnerability among regular tobacco smokers.     

Psychometric evaluation of the Dutch version of the posttraumatic cognitions inventory (PTCI)

Trauma-related cognitions play an increasingly prominent role in research on trauma and in clinical practice. The present study investigated the psychometric characteristics of the Dutch version of the posttraumatic cognitions inventory (PTCI) and evaluated its potential as an outcome measure. Data were collected from a treatment-seeking sample of trauma victims (n=158) and a college sample (n=178). The PTCI's three-factor structure was retained in both samples. The PTCI demonstrated high internal consistency and two-week test-retest reliability. Convergent validity was evidenced by a pattern of correlations with instruments for trauma-related cognitions, posttraumatic stress disorder, and depressive symptoms that largely met a priori expectations. Reductions in self-reported and clinician-assessed posttraumatic stress disorder symptoms were positively associated with decreased PTCI scores, indicating that the PTCI could assist treatment evaluation. It is concluded that the Dutch version of the PTCI exhibits good psychometric characteristics and has the potential to contribute to trauma-related research.     

"I won't do what you tell me!": elevated mood and the assessment of advice-taking in euthymic bipolar I disorder

We hypothesized that when individuals with bipolar disorder are engaged in goal-directed behaviour and experience elevated mood, their decision-making becomes less constrained by advice from other people. This process may allow their goal-directed behaviour to persist, contributing to manic symptoms. Three groups of 32 participants: euthymic-bipolar-I, remitted-unipolar and never-depressed healthy controls were allocated to either a high or low mood induction. Advice-taking was assessed before and after the induction by a computerized task incorporating facial images. The bipolar group significantly opposed the advice given in the task after the high mood induction. The effect was specific to bipolar disorder and remained when controlling for possible confounds. Future work could investigate the effects of this process on manic symptoms, its origins, and the wider theoretical and clinical implications.