Reexamining Nonlinear Structural Equation Modeling Procedures: The Effect of Parallel and Congeneric Measures

The current study examines the performance of the extended unconstrained approach (EXUC) and the latent moderated structural equation modeling procedure (LMS) in situations where quadratic and interaction terms are tested simultaneously and investigates their limitations with regard to the employment of parallel and congeneric measures, relatively low indicator reliabilities, and relatively large numbers of indicators. By means of a Monte Carlo study, we found LMS to be the best option for testing multiple nonlinear effects given sufficient sample size (n ≥ 500) and normally distributed exogenous variables. Its advantages became more prominent when indicator reliabilities were heterogeneous and small. The EXUC was a viable option for estimating the model when indicators were parallel and exhibited large indicator reliabilities. An empirical example of the results is provided, and the relevance of measurement model characteristics to assess nonlinear relationships is discussed.     

The telltale face: Possible mechanisms behind defector and cooperator recognition revealed by emotional facial expression metrics

In this study, we investigated the role of facial cues in cooperator and defector recognition. First, a face image database was constructed from pairs of full face portraits of target subjects taken at the moment of decision‐making in a prisoner's dilemma game (PDG) and in a preceding neutral task. Image pairs with no deficiencies (n = 67) were standardized for orientation and luminance. Then, confidence in defector and cooperator recognition was tested with image rating in a different group of lay judges (n = 62). Results indicate that (1) defectors were better recognized (58% vs. 47%), (2) they looked different from cooperators (p < .01), (3) males but not females evaluated the images with a relative bias towards the cooperator category (p < .01), and (4) females were more confident in detecting defectors (p < .05). According to facial microexpression analysis, defection was strongly linked with depressed lower lips and less opened eyes. Significant correlation was found between the intensity of micromimics and the rating of images in the cooperator‐defector dimension. In summary, facial expressions can be considered as reliable indicators of momentary social dispositions in the PDG. Females may exhibit an evolutionary‐based overestimation bias to detecting social visual cues of the defector face.     

Self‐focused cognitive emotion regulation style as associated with widespread diminished EEG fractal dimension

The cognitive regulation of emotions is important for human adaptation. Self‐focused emotion regulation (ER) strategies have been linked to the development and persistence of anxiety and depression. A vast array of research has provided valuable knowledge about the neural correlates of the use of specific self‐focused ER strategies; however, the resting neural correlates of cognitive ER styles, which reflect an individual's disposition to engage in different forms of ER in order to manage distress, are largely unknown. In this study, associations between theoretically negative ER style (self‐focused or not) and the complexity (fractal dimension, FD) of the resting EEG at frontal, central, parietal, and occipital regions were investigated in 58 healthy volunteers. The Cognitive Emotion Regulation Questionnaire was used as the self‐report measure of ER style. Results showed that a diminished FD over the scalp significantly correlated with self‐focused ER style scores, even after controlling for negative affect, which has been also considered to influence the use of ER strategies. The lower the EEG FD, the higher were the self‐focused ER style scores. Correlational analyses of specific self‐focused ER strategies showed that self‐blaming and rumination were negatively associated with diminished FD of the EEG, but catastrophizing and blaming others were not. No significant correlations were found for ER strategies more focused on situation or others. Results are discussed within the self‐organized criticality theory of brain dynamics: The diminished FD of the EEG may reflect a disposition to engage in self‐focused ER strategies as people prone to ruminate and self‐blame show a less complex resting EEG activity, which may make it more difficult for them to exit their negative emotional state.     

The effects of risk on initial trust formation

This paper seeks to expand our understanding of initial trust by looking at how variation in risk influences the nature of trust and the process of initial trust formation. Four hypotheses were tested in two experiments involving participants with and without work experience. A first hypothesis suggested a positive relationship between a general propensity to trust and initial trust; a second hypothesis, a negative relationship between risk and initial trust; whereas a third hypothesis posited that risk would increase the importance participants place on benevolence and integrity. A fourth hypothesis suggested that risk would have a positive and moderating influence on the effect of out‐of‐role behavior when presented after role‐conformant in‐role behavior. Findings are presented and discussed and practical implications suggested.     

Locus of control as a mediator of the association between attachment and children’s mental health

Locus of control—the expectation that one is in control of one’s outcomes in life—is linked to well-being. The authors explored one of the possible antecedents of locus of control such as secure children’s attachment. The hypothesis was that locus of control acts as a mediator of the association between children’s attachment and their mental health, in terms of depression, anxiety (internalizing problems), and aggression (externalizing problems). Participants were 206 children with ages ranging from 8 to 14 years. The authors obtained data from teachers as well as by self-report. Structural equations modelling yielded significant results for both a direct path from insecure attachment to internalizing problems and an indirect pathway in which locus of control functions as a mediating variable between children’s attachment and internalizing problems. Although the data were consistent with the mediated pathway with regard to internalizing problems, different findings emerged for aggression. Insecure attachment was a significant predictor of aggressive behavior, while locus of control was not a mediator between attachment and aggressive behavior. The authors’ findings confirm the mediating role of the locus of control between attachment and internalizing problems, but not between attachment and externalizing ones.     

Conscious knowledge influences decision‐making differently in substance abusers with and without co‐morbid antisocial personality disorder

Decision‐making impairment, as measured by the Iowa Gambling Task (IGT), is a consistent finding among individuals with substance use disorder (SUD). We studied how this impairment is influenced by co‐morbid antisocial personality disorder (ASPD) and conscious knowledge of the task. Three groups were investigated: SUD individuals without co‐morbid ASPD (n = 30), SUD individuals with co‐morbid ASPD (n = 16), and healthy controls (n = 17). Both SUD and SUD+ASPD participants had poor overall IGT performance. A block‐by‐block analysis revealed that SUD participants exhibited slow but steady improvement across the IGT, whereas SUD+ASPD participants exhibited initial normal improvement, but dropped off during the last 40 trials. Conscious knowledge of the task was significantly correlated to performance for controls and SUD participants, but not for SUD+ASPD participants. Our findings suggest that decision‐making proceeds differently in SUD and SUD+ASPD individuals due to differences in acquisition and application of conscious knowledge.     

Cognitive control deficits in adolescents born with very low birth weight (≤ 1500 g): Evidence from dichotic listening

The objective of the paper is to explore bottom‐up auditory and top‐down cognitive processing abilities as part of long‐term outcome assessment of preterm birth. Fifty‐five adolescents (age 13–15) born with very low birth weight (VLBW) were compared to 80 matched controls born to term, using three consonant‐vowel dichotic listening (DL) instruction conditions (non‐forced, forced‐right and forced‐left). DL scores were correlated with cortical gray matter thickness derived from T1‐weighted structural MRI volumes using FreeSurfer to examine group differences also in the neural correlates of higher cognitive processes. While showing normal bottom‐up processing, VLBW adolescents displayed impaired top‐down controlled conflict processing related to significant cortical thickness differences in left superior temporal gryus and anterior cingulate cortex. Preterm birth with VLBW induces fundamental changes in brain function and structure posing a risk for long‐term neurocognitive impairments. Deficits emerge in situations of increasing cognitive conflict and can be related to measures of executive functions as well as morphology.