EEG theta/beta ratio as a potential biomarker for attentional control and resilience against deleterious effects of stress on attention

Anxious stress compromises cognitive executive performance. This occurs, for instance, in cognitive performance anxiety (CPA), in which anxiety about one’s cognitive performance causes that performance to actually deteriorate (e.g., test anxiety). This is thought to result from a prefrontal cortically (PFC) mediated failure of top-down attentional control over stress-induced automatic processing of threat-related information. In addition, stress-induced increased catecholamine influx into the PFC may directly compromise attentional function. Previous research has suggested that the ratio between resting state electroencephalographic (EEG) low- and high-frequency power (the theta/beta ratio) is related to trait attentional control, which might moderate these effects of stress on attentional function. The goals of the present study were to test the novel prediction that theta/beta ratio moderates the deleterious effects of CPA-like anxious stress on state attentional control and to replicate a previous finding that the theta/beta ratio is related to self-reported trait attentional control. After recording of baseline frontal EEG signals, 77 participants performed a stress induction or a control procedure. Trait attentional control was assessed with the Attentional Control Scale, whereas stress-induced changes in attentional control and anxiety were measured with self-report visual analogue scales. The hypothesized moderating influence of theta/beta ratio on the effects of stress on state attentional control was confirmed. Theta/beta ratio explained 28% of the variance in stress-induced deterioration of self-reported attentional control. The negative relationship between theta/beta ratio and trait attentional control was replicated (r = –.33). The theta/beta ratio reflects, likely prefrontally mediated, attentional control, and should be a useful biomarker for the study of CPA and other anxiety–cognition interactions.     

Assessing Aberrant Personality in Managerial Coaching: Measurement Issues and Prevalence Rates across Employment Sectors

The convergent and discriminant validity of two methods to assess a broad spectrum of aberrant personality tendencies was examined in a large sample of managers who were administered the NEO‐PI‐R (N = 11 862) and the Hogan Development Survey (N = 6774) in the context of a professional development assessment. Five‐Factor Model (FFM) aberrant compounds, defined as linear combinations of NEO‐PI‐R facets, converged for the antisocial, borderline, histrionic, avoidant and obsessive–compulsive tendencies with their respective Hogan Development Survey counterparts. Alternative linear FFM combinations did improve convergent results for the schizoid and obsessive–compulsive pattern. Risk for various aberrant tendencies was roughly equal across different employment sectors, with a higher prevalence of borderline, avoidant and dependent tendencies in the legal and more histrionic tendencies in the retail sector. Adopting FFM aberrant compound cut‐offs developed for coaching purposes to flag at risk individuals showed that 20% to 25% of all managers qualified for at least one and 10% to 15% were flagged as at risk for two or more aberrant tendencies. The theoretical implications and the repercussions of this research for the design of professional development and coaching trajectories are discussed. Copyright © 2013 European Association of Personality Psychology     

Depression and self-focused language in structured interviews with older men

The association between depression and self-focused language has been found to varying extents across studies. The presence or absence of the association may depend on the communicative context. Based on Beck's depression model, a broad, evaluative self-focused question was predicted more likely to elicit a stronger association than a full interview containing a more heterogeneous question set of items. The spontaneous speech obtained during structured interviews of 26 depressed and nondepressed older men, an as-yet little studied population, was analyzed. Results were consistent with the hypothesis that association between self-focused language and depression was demonstrated in the target question but not across the entire interview. The results may explain some of the aforementioned discrepancies in prior studies.     

Identification Problems in Personality Psychology

This paper discusses and illustrates identification problems in personality psychology. The measures used by psychologists to infer traits are based on behaviors, broadly defined. These behaviors are produced from multiple traits interacting with incentives in situations. In general, measures are determined by these multiple traits and do not identify any particular trait unless incentives and other traits are controlled for. Using two data sets, we show, that substantial portions of the variance in achievement test scores and grades, which are often used as measures of cognition, are explained by personality variables.     

Effects of cancer rehabilitation on problem-solving, anxiety and depression: a RCT comparing physical and cognitive-behavioural training versus physical training

We tested the effects on problem-solving, anxiety and depression of 12-week group-based self-management cancer rehabilitation, combining comprehensive physical training (PT) and cognitive-behavioural problem-solving training (CBT), compared with PT. We expected that PT + CBT would outperform PT in improvements in problem-solving (Social Problem-Solving Inventory-Revised (SPSI-R)), anxiety and depression (Hospital Anxiety and Depression Scale (HADS)), and that more anxious and/or depressed participants would benefit most from adding CBT to PT. Cancer survivors (aged 48.8 ± 10.9 years, all cancer types, medical treatment completed) were randomly assigned to PT + CBT (n = 76) or PT (n = 71). Measurement occasions were: before and post-rehabilitation (12 weeks), 3- and 9-month follow-up. A non-randomised usual care comparison group (UCC) (n = 62) was measured at baseline and after 12 weeks. Longitudinal intention-to-treat analyses showed no differential pattern in change between PT + CBT and PT. Post-rehabilitation, participants in PT and PT + CBT reported within-group improvements in problem-solving (negative problem orientation; p < 0.01), anxiety (p < 0.001) and depression (p < 0.001), which were maintained at 3- and 9-month follow-up (p < 0.05). Compared with UCC post-rehabilitation, PT and PT + CBT only improved in anxiety (p < 0.05). CBT did not add to the effects of PT and had no extra benefits for higher distressed participants. PT was feasible and sufficient for durably reducing cancer survivors' anxiety.     

Vocational interests and Big Five traits as predictors of job instability

Although empirical research on this topic is scarce, personality traits and vocational interests have repeatedly been named as potential individual level predictors of job change. Using a long-term cohort study (N = 291), we examined RIASEC interest profiles and Big Five personality scores at the beginning of the professional career as predictors of subsequent job changes, both internal as well as external, over the next 15 years. Overall, results provide additional evidence for an individual difference perspective on job instability, although our findings vary across instability variables. Consistent with previous research, external job changes in particular related to individual differences. Specifically, scores on Investigative, Artistic, Enterprising and Conventional scales showed to be the most important interest related predictors. With regard to Big Five personality traits, strongest associations were found with Agreeableness and Openness. In addition, facet level analyses proved to be useful to further clarify linkages between personality and job instability.     

An empirical typology of perfectionism in early-to-mid adolescents and its relation with eating disorder symptoms

Although the association between perfectionism and eating disorder (ED) symptoms is well-established, debate remains about the relative contribution of two central dimensions of perfectionism, that is, Personal Standards (PS) perfectionism and Evaluative Concerns (EC) perfectionism, in the prediction of ED symptoms. This study used cluster analysis to establish naturally occurring combinations of PS and EC perfectionism in early-to-mid adolescents (N = 656; M age = 13.9 years). Evidence was obtained for four perfectionism profiles: (1) maladaptive perfectionism (high PS and high EC), (2) pure evaluative concerns perfectionism (high EC only), (3) adaptive perfectionism (high PS, low EC), and (4) non-perfectionism (low on both PS and EC). A comparison of participants in these four clusters in terms of ED symptoms suggests that a combination of high personal standards and evaluative concerns (rather than the presence of one of these two dimensions alone) is most strongly related to ED symptoms.