Interactive effect of long-term mental stress and cardiac stress reactivity on carotid intima-media thickness: the Cardiovascular Risk in Young Finns study

The present study examined the interaction between vital exhaustion and cardiac reactivity and recovery on preclinical atherosclerosis assessed by carotid intima-media thickness (IMT) in young men and women. We measured heart rate (HR), respiratory sinus arrhythmia (RSA), and pre-ejection period (PEP) in response to mental arithmetic and speech tasks. Vital exhaustion and carotid IMT were also measured. Significant associations were observed for men aged 28-37 years, but not for men aged 22-25 years, nor for women in these age groups. It was shown that, among highly exhausted men in the older age group, lower HR reactivity was related to greater IMT. Our results also imply that, among non-exhausted men in this age group, slow HR and RSA recovery after acute stress predicted higher IMT. These results suggest that long-term stress as assessed by vital exhaustion is a risk only if it has resulted in ineffective cardiac stress reactivity. Autonomic imbalance resulting from chronic stress may be the common mechanism linking vital exhaustion and cardiac responsiveness to an increased risk of atherosclerosis.     

Marriages and psychological distress among adult offspring of divorce: a Norwegian study

The study compares the likelihood of getting married and of getting divorced among the adult offspring of divorced parents versus the adult offspring of parents who remain married (total N = 37,230). It also compares levels of psychological distress in the two groups (total N= 22,898). Data derive from The Nord‐Trøndelag Health Study (HUNT) and population registries from Norway. Individuals with divorced parents tended to delay marriage or not marry at all. However, among those who married, there were more divorces among the offspring of divorced parents than among offspring of parents who were still married. Offspring of divorce tended to marry other offspring of divorce. These marriages were at especially high risk of dissolution. Parental divorce was particularly influential as a risk factor during the first years of marriage. Both parental divorce and the individuals’ own divorce were risk factors for psychological distress.     

The Network Structure of Childhood Psychopathology in International Adoptees

International adoptees are at an increased risk of emotional and behavioral problems, especially those who are adopted at an older age. We took a new approach in our study of the network structure and predictability of emotional and behavioral problems in internationally adopted children in Finland. Our sample was from the on-going adoption study and comprised 778 internationally adopted children (387 boys and 391 girls, mean age 10.5 (SD 3.4) years). Networks were estimated using Gaussian graphical models and lasso regularization for all the children, and separately for those who were adopted at different ages. The results showed that anxiety/depressive symptoms, social problems, and aggressiveness were the most central symptom domains. Somatic symptoms were the least central and had the weakest effect on the other domains. Similarly, aggressiveness, social problems, and attention problems were high in terms of predictability (73–65%), whereas internalizing problems were relatively low (28–56%). There were clear but local age-group differences in network structure, symptom centrality, and predictability. According to our findings, network models provide important additional information about the centrality and predictability of specific symptom domains, and thus may facilitate targeted interventions among international adoptees.     

Literacy acquisition influences children's rapid automatized naming

Previous research has established that learning to read improves children's performance on reading‐related phonological tasks, including phoneme awareness (PA) and nonword repetition. Few studies have investigated whether literacy acquisition also promotes children's rapid automatized naming (RAN). We tested the hypothesis that literacy acquisition should influence RAN in an international, longitudinal population sample of twins. Cross‐lagged path models evaluated the relationships among literacy, PA, and RAN across four time points from pre‐kindergarten through grade 4. Consistent with previous research, literacy showed bidirectional relationships with reading‐related oral language skills. We found novel evidence for an effect of earlier literacy on later RAN, which was most evident in children at early phases of literacy development. In contrast, the influence of earlier RAN on later literacy was predominant among older children. These findings imply that the association between these two related skills is moderated by development. Implications for models of reading development and for dyslexia research are discussed.     

Learning and growing from ‘communities of practice’: autoethnographic narrative vignettes of an aspiring educational researcher’s experience

This is an autoethnographic study that inquiries into my own journey as an aspiring educational researcher throughout the second course of my Master’s Program at the University of Gothenburg in Sweden. My experiences take place in the context of a group of real educational researchers and their on-going research project at the faculty of education called ‘Beyond Plant Blindness: Seeing the importance of plants for a sustainable world’ (BPB). All of the experiences included in this study are expressed in the form of chronologically ordered narrative vignettes. In order to bring theoretical meaning to these experiences, the vignettes were critically reflected upon and interpreted through the concept Communities of Practice (CoP), which is central to situated learning theory. Through this conceptual lens, my experiences revealed that an aspiring educational researcher may feel emotional and intellectual growth as a newcomer who is granted legitimate peripheral participation in the ‘real’ researcher CoP. Consequently, this study sheds light on ways that real researchers may play a part in shaping the identities of aspiring educational researchers through learning experiences. However, more generally, this study may facilitate fresh conversations about the complexities of learning, identity, and inclusion in the field of educational research.     

The cognitive substrate of subjective probability

The prominent cognitive theories of probability judgment were primarily developed to explain cognitive biases rather than to account for the cognitive processes in probability judgment. In this article the authors compare 3 major theories of the processes and representations in probability judgment: the representativeness heuristic, implemented as prototype similarity, relative likelihood, or evidential support accumulation (ESAM; D. J. Koehler, C. M. White, & R. Grondin, 2003); cue-based relative frequency; and exemplar memory, implemented by probabilities from exemplars (PROBEX; P. Juslin & M. Persson, 2002). Three experiments with different task structures consistently demonstrate that exemplar memory is the best account of the data whereas the results are inconsistent with extant formulations of the representativeness heuristic and cue-based relative frequency.     

A suicide peak after weekends and holidays in patients with alcohol dependence

This paper analyzes the variation of suicide by day of the week in alcohol dependence, with public holidays taken into consideration. From 1949 through 1969, 1,312 patients with alcohol dependence were admitted to the Department of Psychiatry in Lund. By 1997, a total of 102 (99 men) alcoholic patients had taken their own life. Suicide victims with severe depression and other diagnoses were compared. There was a suicide peak on the first two days after weekends and holidays in patients with alcohol dependence (p < .05). Alcohol withdrawal is proposed as a contributor to the suicide peak.     

Individual variable pay for performance,controlling effects,and intrinsic motivation

Motivation and Emotion - A core question in research on compensation and motivation is whether individual variable pay for performance (IVPFP) can undermine intrinsic motivation in the workplace....