Identification of emotional expressiveness in facial photographs over 36 h of extended vigilance in healthy young men—a preliminary study

Changes in sleep patterns negatively influence some emotional responses, but their effects on facial expressiveness identification are unclear. To investigate these effects, 21 young, healthy, male volunteers of intermediate chronotype evaluated emotional expressiveness of faces depicting 6 basic emotions in 5 emotional gradients every 4?h over 36?h of continuous wakefulness. To measure attention and mood we used the Psychomotor Vigilance test and the Positive and Negative Affect Schedule Expanded, respectively. We found effects of emotional gradient for all types of emotions (100%?>?80%?>?60%?>?40%?>?20%) during all tested periods, with no indications of circadian effects. The only emotional rating to be affected was disgust, which was progressively blunted throughout the experiment. This effect did not parallel homeostatic and circadian changes in mood, alertness or attention. We conclude that identifying disgust on facial photographs is particularly sensitive to lack of sleep irrespective of sleep-induced changes in mood and attention in males.     

The differences between medical trust and mistrust and their respective influences on medication beliefs and ART adherence among African-Americans living with HIV

Objective: The purpose of this study was to examine the relationships between medical mistrust and trust and to determine if these measures differentially predict antiretroviral therapy (ART) medication adherence for African-American adults living with HIV.

Design: A total of 458 HIV positive African-Americans completed a cross-sectional survey.

Main Outcome Measures: Self-reported ART adherence was collected using the visual-analog scale. The Beliefs About Medicines Questionnaire was used to assess medication necessity and concern beliefs.

Results: All measures of medical mistrust and trust were significantly negatively correlated, ranging from r = ?.339 to ?.504. Race-based medical mistrust significantly predicted medication necessity and concern beliefs, whereas general medical mistrust only significantly predicted medication concerns. Both measures of trust significantly predicted medication necessity beliefs and medication concerns. Higher levels of race-based medical mistrust predicted lower medication adherence, whereas, neither trust in own physician nor trust in health care provider significantly predicted medication adherence. However, trust in own physician significantly predicted medication necessity beliefs, which predicted medication adherence.

Conclusion: Trust and mistrust are not simply opposites of one another. These findings provide evidence for the complexity of understanding the relationship between health care trust, mistrust and patient-related health beliefs and behaviours.     

Executive functioning and health-related quality of life in pediatric sickle cell disease

Research consistently indicates that children with sickle cell disease (SCD) face multiple risk factors for neurocognitive impairment. Despite this, no empirical research to date has examined the impact of neurocognitive functioning on quality of life for this pediatric group. Thus, the current study aims to examine the relationship between executive functioning and quality of life in a sample of children with SCD and further explore psychosocial and family/caregiver resources as moderators of this relationship. A total of 45 children with SCD aged 8 to 16 years and their caregivers completed measures of quality of life, behavioral ratings of executive functioning, and psychosocial functioning. Hierarchical linear regression models were utilized to determine the impact of executive functioning on quality of life and further test the interaction effects of proposed moderating variables. Controlling for age, pain, and socioeconomic status (SES), executive functioning was found to significantly predict child- and parent-reported quality of life among youth with SCD. Psychosocial resources of the primary caregiver or family was not found to moderate the relationship between executive functioning and quality of life. These results provide the first empirical evidence that lower executive skills negatively predict quality of life for children with SCD, supporting clinical and research efforts which aim to establish efficacious interventions that target cognitive decrements within this pediatric population.     

Intention stability assessed using residual change scores moderates the intention-behaviour association: a prospective cohort study

Intention stability is considered to be one of the key pre-requisites for a strong association between intention and behaviour. It has been claimed, however, that studies examining the moderating impact of intention stability may be invalid, as they have relied on statistically inferior methods. Residual change scores have been suggested as a more appropriate method of measuring change (or lack thereof) in constructs. The aim of the current study, therefore, is to test whether intention stability, calculated using residual change scores, moderates the intention-physical activity behaviour association. A total of 163 participants (124 women, 39 men) completed questionnaires online at three time points separated by 14 day intervals. The moderating impact of intention stability was assessed using multiple linear regression followed up using simple slope analyses to identify the direction of any effect. The interaction of intention and intention stability was found to significantly improve the overall model fit. Intentions had a stronger positive association with behaviour when intentions were more stable than when they were more unstable. However, sensitivity analyses revealed that the association was not robust and reduced to non-significant with the removal of potential multivariate outliers. Future research should use residual change scores as the preferred method of assessing intention stability.     

We used to say “Zei gezunt!” (Be well!): Do American Jews still exhibit distinctive health behaviors?

ABSTRACT

A survey that includes a representative sample (n = 3,219) of older persons (age 60+) living in the Philadelphia area was used to determine if health status and health behaviors of older Jews differ from that of non-Jews. The survey includes questions about health status and health behaviors as well as sociodemographic characteristics. Responses of self-identified Jews, Catholics, and Protestants were compared. With only two exceptions there were no differences between Jews and non-Jews on questions about health status. In regard to health behaviors, Jews were more likely to follow standard recommendations such as seeing their physician on a regular basis or yearly screenings for certain cancers. We completed stepwise regressions with measures of socioeconomic status entered first and then Jewish status, as socioeconomic status is closely associated with health outcomes. Being Jewish continued to explain differences in health behaviors even when controlling for socioeconomic status. We also looked at the relation between attending religious services and health behaviors. Self-rated health was correlated with attendance for Protestants and for Catholics; it was not correlated with self-rated health for the Jews. All findings suggest the need for further study of the reason for the relation of health behavior to being Jewish.     

Values disparity and academic achievement among Ugandan adolescents

A century ago, Christian missionaries founded Uganda’s earliest schools. Many of these schools continue to espouse values inculcation as a stated goal. In this study of 502 Ugandan children completing primary school (P7), students’ personal values and their perception of their school’s values were measured using adaptations of the Rokeach Values Survey (RVS). A disparity score was computed for each respondent to determine the degree of similarity between personal and school values. The relationship between the disparity score and performance on the Primary Leaving Examination (PLE) was then computed. Results reveal a small but significant correlation between values disparity and academic achievement (r = .35, p < .001).