Cognitive and emotional dysfunction after central pontine myelinolysis

The case of a 67-year-old right-handed Chinese man with Central Pontine Myelinolysis [CPM] is described to illustrate the resulting cognitive and emotional disturbances. A comparison of the data in this report with that in published studies suggests that ethnicity does not seem to have much effect on the symptoms of CPM. Possible underlying neural-pathological mechanisms are discussed. This case further substantiates the speculation that the brainstem plays a role in higher cognitive processes and emotional regulation.     

Detection of repeated trigrams: evidence of all-or-none learning

Two experiments investigated trigram detection in a continuous recognition task. In Experiment 1 consonant trigrams were presented visually, one at a time, with occasional repetition of a trigram after an interval of 0, 2, 4, 8, or 16 other trigrams. Subjects were told to respond with a button press every time they saw a repeated trigram. If a subject responded to a repeated trigram, it was not repeated again. However, if a subject did not respond to a repeated trigram, it was repeated again at the same interval for up to 3 repetitions. For all intervals greater than 0, the probability of noticing a repeated trigram did not increase with the number of repetitions. In Experiment 2 meaningless shape trigrams were presented, and occasionally a trigram was repeated after an interval of 0, 1, or 2 trigrams. For both intervals greater than 0, the probability of noticing a repeated trigram did not increase with the number of repetitions. The results demonstrate that a repeated input does not necessarily leave a permanent trace in memory.     

Comorbidity Between Depression and Anxiety in Adolescents: Bridge Symptoms and Relevance of Risk and Protective Factors

Depression and anxiety are highly prevalent and comorbid in adolescents, and this co-occurrence leads to worse prognosis and additional difficulties. The relationship between depression and anxiety must be delineated to, in turn, reduce and prevent the comorbidity, however our knowledge is still limited. We used network analysis to investigate bridge symptoms; symptoms that connect individual depression and anxiety symptoms and thus can help explain the comorbidity. We also examined the role of relevant risk and protective factors in explaining these symptom-level associations between these disorders. We analyzed data from the Avon Longitudinal Study of Children and Parents (n?=?3670). Depression and anxiety symptoms, peer victimization, bullying, peer relational problems, prosocial behavior, and parental monitoring were assessed at a single time point around age 13 years. Stressful life events (SLEs) were assessed at age 11 years. We identified the most prominent bridge symptoms among depression (“feeling unhappy”, “feeling lonely”) and anxiety symptoms (“worrying about past”, “worrying about future”). Peer relational difficulties and SLEs were strongly associated with several depression and anxiety symptoms, such that these two risk factors created a link between individual depression and anxiety symptoms. Prosocial behavior had several negative associations with symptoms of both disorders, suggesting it can be an important protective factor.

     

Investigating the effects of a virtual reality-based stress management programme on inpatients with mental disorders: A pilot randomised controlled trial

This study aimed to examine the effects and feasibility of a virtual screen-based stress management programme (V-DESSERTS) on inpatients with mental disorders. A single-blinded, pilot randomised controlled trial was conducted in a tertiary hospital in Singapore. Convenience sampling was used and participants were randomised into either the intervention group or the waitlisted control group (WL). The intervention group received individual-based, twice-daily sessions of the programme. Each session comprised education and virtual screen-based relaxation practice. Data were collected through self-reported questionnaires and physiological measures. The intervention group showed a significant increase in perceived relaxation and knowledge in comparison with the WL group. However, inconclusive results were observed on subjective and objective stress. The findings in this study indicated that the V-DESSERTS programme is feasible to be implemented for patients with schizophrenia, depression and bipolar disorders.     

Psychological distress and resilience as risk and protective factors of psychoactive substance use among Chinese nonengaged youth

Nonengaged youth (NEY) are those who have neither been working nor studying for a prolonged period of time. They are at risk of psychoactive substance use, but relevant studies are scarce. Based on a population‐based telephone survey and referrals, we anonymously interviewed 479 Hong Kong Chinese NEY aged 15–24 years. Of them, 14.8–23.7% reported moderate to severe depression, anxiety, and stress. Moreover, one fourth of the participants (24.8%; n = 119) had used psychoactive substances. Adjusted analyses showed that these three psychological distress variables were positively associated with, while resilience was negatively associated with, both ever‐use of psychoactive substances and intention to use such substances in the next 12 months. Loneliness was associated only with intention to use psychoactive substances. The mediating role of psychological distress was shown: Anxiety significantly mediated the association between resilience and ever‐use of psychoactive substances, whereas depression mediated that between resilience and behavioural intention. Resilience was not a significant moderator on the relationship between psychological distress and ever‐use of psychoactive substance use or behavioural intention to use those substances. The findings suggest that anti‐drug interventions should outreach NEY and should include mental health support as well as building up resilience, as NEY are prone to psychological distress that increases risk of substance use.     

Cognitive bias modification as a strategy to reduce children's fears and concerns about the secondary school transition

Background and objectives: Cognitive Bias Modification of Interpretations (CBM-I) has emerged as an anxiety-reducing tool for children and adolescents, targeting maladaptive interpretations of everyday situations. This literature falls short of addressing whether the effects of CBM-I extend to worries about a real-life stressor, such as a school transition. Design: The study comprised a between-groups design comparing the effects of CBM-I to an active control (AC) intervention in children. Method: We recruited 38 children within two months of their primary–secondary school transition and investigated the capacity for multi-session, parent-administered CBM-I, compared to an AC condition, to modify cognitive style and reduce anxiety symptoms and school concerns. Results: While benign interpretations increased significantly and negative interpretations tended to decrease following CBM-I, both interventions significantly reduced anxiety symptoms and school concerns. Conclusions: These findings indicate that anxiety-reducing effects of CBM-I in children extend to a real life stressful event, but that equivalent anxiety reduction may be achieved through exposure to potentially worrying situations and parent–child interaction in the absence of bias modification.     

Perceived cultural importance and actual self-importance of values in cultural identification

Cross-cultural psychologists assume that core cultural values define to a large extent what a culture is. Typically, core values are identified through an actual self-importance approach, in which core values are those that members of the culture as a group strongly endorse. In this article, the authors propose a perceived cultural importance approach to identifying core values, in which core values are values that members of the culture as a group generally believe to be important in the culture. In 5 studies, the authors examine the utility of the perceived cultural importance approach. Results consistently showed that, compared with values of high actual self-importance, values of high perceived cultural importance play a more important role in cultural identification. These findings have important implications for conceptualizing and measuring cultures.     

Support vector machine for classification of walking conditions of persons after stroke with dropped foot

Walking with dropped foot represents a major gait disorder, which is observed in hemiparetic persons after stroke. This study explores the use of support vector machine (SVMs) to classify different walking conditions for hemiparetic subjects. Seven participants with dropped foot (category 4 of functional ambulatory category) walked in five different conditions: level ground, stair ascent, stair descent, upslope, and downslope. The kinematic data were measured by two portable sensor units, each comprising an accelerometer and gyroscope attached to the lower limb on the shank and foot segments. The overall classification accuracy of stair ascent, stair descent, and other walking conditions was 92.9% using input features from the sensor attached to the shank. It was further improved to 97.5% by adding two more inputs from the sensor attached to the foot. Stair ascent was also classified by the inputs from the foot sensor unit with 96% accuracy. The performance of an SVM was shown to be superior to that of other machine learning methods using artificial neural networks (ANN) and radial basis function neural networks (RBF). The results suggested that the SVM classification method could be applied as a tool for pathological gait analysis, pattern recognition, control signals in functional electrical stimulation (FES) and rehabilitation robot, as well as activity monitoring during rehabilitation of daily activities.     

What is the temperamental basis of humour like in China? A cross-national examination and validation of the standard version of the state–trait cheerfulness inventory

The State–Trait Cheerfulness Inventory–trait version (STCI-T60) consists of three dimensions of cheerfulness, seriousness, and bad mood integrated to measure the temperamental basis of the sense of humour. The present study replicated the three-dimensional factor structure of the STCI in China using 60 items consistent with other standard trait versions (e.g., English, Chilean-Spanish). Closer examination of associations between traits suggested bad mood showed curvilinear associations with both cheerfulness and seriousness, such that cheerfulness and bad mood were negatively associated for those low and average in trait bad mood but not for those with high trait bad mood. Seriousness was positively associated with bad mood at high levels of trait bad mood, but not at average or low levels of bad mood. Associations between the STCI traits and major personality dimensions, humour styles, and well-being were further examined. Cheerfulness and seriousness showed positive associations with satisfaction with life and emotional well-being (EWB) while bad mood showed a curvilinear association with EWB. Using multi-group confirmatory factor analyses, partial metric invariance was found between English and Chinese versions of the STCI-T60, but structural invariance was not observed. Implications based on the empirical literature in dialecticism and cross-cultural assessment were thoroughly discussed.     

Leadership as a Reflection of Who We Are: Social Identity,Media Portrayal,and Evaluations of Hillary Clinton in the 2016 U.S. Presidential Election

Sex Roles - The 2016 U.S. Presidential election presented a unique opportunity to study gender and leadership. Using the social identity theory of leadership (Hogg 2001) as a guiding...