Using temporal distancing to regulate emotion in adolescence: modulation by reactive aggression

Adopting a temporally distant perspective on stressors reduces distress in adults. Here we investigate whether the extent to which individuals project themselves into the future influences distancing efficacy. We also examined modulating effects of age across adolescence and reactive aggression: factors associated with reduced future-thinking and poor emotion regulation. Participants (N?=?83, aged 12–22) read scenarios and rated negative affect when adopting a distant-future perspective, near-future perspective, or when reacting naturally. Self-report data revealed significant downregulation of negative affect during the distant-future condition, with a similar though non-significant skin conductance pattern. Importantly, participants who projected further ahead showed the greatest distress reductions. While temporal distancing efficacy did not vary with age, participants reporting greater reactive aggression showed reduced distancing efficacy, and projected themselves less far into the future. Findings demonstrate the importance of temporal extent in effective temporal distancing; shedding light on a potential mechanism for poor emotional control associated with reactive aggression.     

The Effects of Modafinil on Convergent and Divergent Thinking of Creativity: A Randomized Controlled Trial

Modafinil is a drug licensed for the treatment of narcolepsy and sleep apnea. Recently, modafinil has been reported to be used as a pharmacological cognitive enhancer by healthy individuals with no psychiatric disorders. This paper reports on a study that investigated the effects of modafinil on divergent and convergent thinking tasks of creativity. Sixty‐four healthy male (n = 31) and female (n = 33) volunteers participated in a randomized double‐blind placebo‐controlled parallel group design study. For the convergent thinking tasks, modafinil had no significant main effect on the Group Embedded Figures Task and the Remote Associates Task (RAT). However, a median split analysis showed that modafinil participants low in creativity personality trait had significantly higher RAT scores (Mean [M] = 6.85, SD = 3.39; 95% confidence interval [95% CI]: 5.53–8.2) than those high in creativity personality trait (M = 4.27, SD = 3.0; 95% CI: 2.4–6.0). For the divergent thinking tasks, relative to placebo (M = 1.195, SD = 0.28; 95% CI: 1.0–1.3), modafinil (M = 0.77, SD = 0.37; 95% CI: 0.63–0.92) significantly reduced the performance of flexibility scores and marginally reduced the elaboration scores as measured by the Abbreviated Torrance Test for Adults (ATTA). Overall, participants on modafinil (M = 6.3, SD = 2.6; 95% CI: 5.3–7.4) had significantly lower ATTA scores relative to participants on placebo (M = 9.5, SD = 2.3; 95% CI: 8.6–10.4). These results indicate that modafinil might reduce divergent thinking of creativity in healthy individuals. They suggest that, rather than being a more general cognitive enhancer, modafinil might have negative and subtle effects on creativity. However, the results are from a small‐scale trial, which tested a small number of participants. Therefore, the results need to be interpreted with caution. A replication with a large sample of participants is recommended.     

Teachers’ and Parents’ Perspectives on a Curricular Subject of “Religion and Spirituality” for Indian Schools: A Pilot Study Toward School Mental Health Program

Religious–spiritual (R/S) education helps medical students cope with caregiving stress and gain skills in interpersonal empathy needed for clinical care. Such R/S education has been introduced into K-12 and college curricula in some developed nations and has been found to positively impact student’s mental health. Such a move has not yet been seen in the Indian education system. This paper aimed to examine perspectives of teachers and parents in India on appropriateness, benefits, and challenges of including R/S education into the school curriculum and also to gather their impressions on how a R/S curriculum might promote students’ health. A cross-sectional study of religiously stratified sample of teachers and parents was initiated in three preselected schools in India and the required sample size (N = 300) was reached through snowballing technique. A semi-structured questionnaire, with questions crafted from “Religion and Spirituality in Medicine, Physicians Perspective” (RSMPP) and “American Academy of Religion’s (AAR) Guidelines for Religious Literacy,” was used to determine participants’ perspectives. Findings revealed that teachers’ and parents’ “comfort in integrating R/S into school curriculum” was associated with their gender (OR 1.68), education status (OR 1.05), and intrinsic religiosity (OR 1.05). Intrinsic religiosity was significantly (p = 0.025) high among parents while “intrinsic spirituality” was high (p = 0.020) among teachers. How participants’ R/S characteristics influence their support of R/S education in school is discussed. In conclusion, participants believe R/S education will fosters students’ emotional health and interpersonal skills needed for social leadership. A curriculum that incorporates R/S education, which is based on AAR guidelines and clinically validated interpersonal spiritual care tools would be acceptable to both teachers and parents.     

American Muslim Physician Attitudes Toward Organ Donation

Religious beliefs and values impact Muslim patients' attitudes toward a variety of healthcare decisions, including organ donation. Muslim physician attitudes toward organ donation, however, are less well studied. Utilizing a national survey of physician members of the Islamic Medical Association of North America, relationships between religiosity, patterns of bioethics resource utilization, and sociodemographic characteristics with attitudes toward organ donation were assessed. Of 255 respondents, 251 answered the target question, “in your understanding, does Islamic bioethics and law permit organ donation?.” 177 respondents (70%) answered positively, 30 (12%) negatively, and 46 (18%) did not know. Despite the overwhelming majority of respondents believing organ donation to be permitted by Islamic bioethics and law, fewer than one-third (n = 72, 30%) are registered donors. Several sociodemographic features had a positive association with believing organ donation to be permitted: ethnic descent other than that of South Asian, having immigrated to the USA as an adult, and male sex. When using a logistic regression model controlling for these three variables as potential confounders, the best predictor of Muslim physicians believing organ donation to be permissible was utilization of an Imam as a bioethical resource (odds ratio 5.9, p = 0.02). Religiosity variables were not found to be associated with views on the Islamic permissibility of organ donation. While Muslim American physicians appear to believe there is religious support for organ donation, only a minority sign up to be donors. Greater study is needed to understand how physicians' attitudes regarding donation impact discussions between patients and physicians regarding the possibility of donating and of receiving a transplant.     

Impression management and achievement motivation: Investigating substantive links

In this research, we investigate impression management (IM) as a substantive personality variable by linking it to differentiated achievement motivation constructs, namely achievement motives (workmastery, competitiveness, fear of failure) and achievement goals (mastery‐approach, mastery‐avoidance, performance‐approach, performance‐avoidance). Study 1 revealed that IM was a positive predictor of workmastery and a negative predictor of competitiveness (with and without self‐deceptive enhancement (SDE) controlled). Studies 2a and 2b revealed that IM was a positive predictor of mastery‐approach goals and mastery‐avoidance goals (without and, in Study 2b, with SDE controlled). These findings highlight the value of conceptualising and utilising IM as a personality variable in its own right and shed light on the nature of the achievement motive and achievement goal constructs.     

Lack of association of extraversion and neuroticism with sibship size and birth order among Arab college students

In a sample of 450 (220 men, 230 women) Egyptian undergraduates (M age=20.6 yr., SD=1.9), scores on extraversion and neuroticism scales were not associated with sibship size and birth order.     

Factorial structure of the Kuwait University Anxiety Scale in a large sample of college students: rejoinder

Recently a study by Lester of American college students found a different factor structure for the Kuwait University Anxiety Scale than studies with students from Arab countries. Thus, a large sample of college students (N=3064) was recruited from 10 Arab countries to examine the replicability of the factors previously extracted from the Kuwait University Anxiety Scale. Three factors, identified in the present sample, were compatible with those in the prior larger sample (N=9031). These were labeled Cognitive/Affective Anxiety, Subjective Anxiety or Nervousness, and Somatic Anxiety. The factorial pattern of the scale has been verified by both large samples.     

Using TD learning to simulate working memory performance in a model of the prefrontal cortex and basal ganglia

Delayed-response tasks (DRTs) have been used to assess working memory (WM) processes in human and nonhuman animals. Experiments have shown that the basal ganglia (BG) and dorsolateral prefrontal cortex (DLPFC) subserve DRT performance. Here, we report the results of simulation studies of a systems-level model of DRT performance. The model was trained using the temporal difference (TD) algorithm and uses an actor-critic architecture. The matrisomes of the BG represent the actor and the striosomes represent the critic. Unlike existing models, we hypothesize that the BG subserve the selection of both motor- and cognitive-related information in these tasks. We also assume that the learning of both processes is based on reward presentation. A novel feature of the model is the incorporation of delay-active neurons in the matrisomes, in addition to DLPFC. Another novel feature of the model is the subdivision of the matrisomal neurons into segregated winner-take-all (WTA) networks consisting of delay- versus transiently-active units.Our simulation model proposes a new neural mechanism to account for the occurrence of perseverative responses in WM tasks in striatal-, as well as in prefrontal damaged subjects. Simulation results also show that the model both accounts for the phenomenon of time shifting of dopamine phasic signals and the effects of partial reinforcement and reward magnitude on WM performance at both behavioral and neural levels. Our simulation results also found that the TD algorithm can subserve learning in delayed-reversal tasks.     

Serum beta-amyloid correlates with neuropsychological impairment

AIMS: Evidence suggests a relationship between peripheral Abeta and AD. We hypothesized that higher levels of serum Abeta(1-42) would be associated with memory impairment, thought to occur early in the disease, and rises in serum Abeta(1-40), which occur later, would be associated with impairment in non-memory measures. METHODS: Using a cross-sectional design, we examined the relationship of serum Abeta(1-40), Abeta(1-42), and the ratio of Abeta(1-42/1-40) to neuropsychological measures in 40 cognitively normal controls, 13 MCI subjects, and 25 AD patients. RESULTS: Serum Abeta(1-42) and the ratio of Abeta(1-42/1-40) were significantly higher in the MCI group compared to the controls. A significant relationship in the hypothesized direction (poorer scores associated with higher Abeta(1-40) serum levels) was found between Abeta(1-40) and measures of executive functions across the entire cohort of individuals tested and with measures of language and processing speed in the AD group. Regression analysis found that neuropsychological measures accounted for 26% of the variance in serum Abeta(1-40,) in the MCI/AD but not the controls. Furthermore that language and executive measures were significant predictors. CONCLUSIONS: Results provide preliminary data to partially support our hypotheses and suggest that changes in serum Abeta levels may be attributed to pathological changes within the brain.     

Aggression in Tilapia affects immunocompetent leucocytes

Social interactions are typical behavioral patterns serving to regulate life in a group. These interactions may develop into aggression, which causes stress in the defeated animal. We used Tilapia, a commercially important fish which is aggressive, to examine how this behavior affects them and whether it induces alterations in leucocytes. Compared to dominant fish, subordinate ones had elevated glucose levels and hemolytic blood sera. In addition, cells from blood and pronephros of subordinates, when compared to dominant fish, showed qualitative changes characterized by granulocytosis and lymphopenia. Furthermore, leucocytes revealed cytoplasmic and karyoplasmic vacuolation, indicating cellular disintegration. These morphological alterations were also accompanied by impaired leukocyte function and thus may increase susceptibility to diseases and neoplasia.