Physiological arousal of obese persons to food stimuli

Physiological arousal was measured in 20 obese and 20 normal-weight subjects during presentation of imagery tasks with food- and nonfood-related stimuli and during presentation and eating of food. No differential arousal, as measured by skin conductance, was obtained between the groups for any of the stimuli. Presentation and eating of the food did produce significant arousal in subjects.     

Medication adherence behaviors in older adults: effects of external cognitive supports.

Medication adherence behaviors of 61 elderly adults were examined using a sensitive microelectronic monitoring device. To assess the effects of external cognitive supports on adherence, different subjects received (a) no intervention, (b) an organizational chart, (c) an over-the-counter medication organizer, or (d) both the chart and organizer. The young-old subjects showed a high rate of adherence (94%) and were not improved by the addition of the interventions. Old-old subjects had a lower rate of adherence (85%) than young-olds. Omission errors were the most frequent mistakes and were lower in the condition in which subjects received both chart and organizer.     

Fruit and Vegetable Intake Predicts Positive Affect

Prior research suggests that fruit and vegetable intake predicts psychological well-being (WB) when controlled for demographic variables such as age, income and education. Using multiple-item measures and including additional diet and health variables as covariates, the current study assessed self-reported well-being in the past week and daily fruit and vegetable consumption over the past 4 weeks for 1270 university students. Mean positive affect increased linearly as a function of number of daily servings of fruits and vegetables; the pattern of this relationship did not differ significantly for males and females. This association remained statistically significant after controlling for demographic variables (age, sex, and parent education levels); other diet variables (consumption of sugar containing beverages, coffee or tea, and fat); and other health behaviors (exercise, sleep quality and smoking). Life satisfaction and negative affect were not significantly related to fruit and vegetable consumption. Analysis of single-item measures similar to those used in past large scale surveys yielded similar results. Possible reasons for the association of fruits and vegetable consumption with well-being are discussed.     

Mapping the Decision to Quit: A Refinement and Test of the Unfolding Model of Voluntary Turnover

We report a test of an influential theory of employee turnover: the unfolding model ( Lee & Mitchell, 1994 ; Lee, Mitchell, Holtom, McDaniel, & Hill, 1999 ). We describe and critique this classificatory model, and propose both theory‐based and empirical refinements. The two extant tests of the current version of the model have both been with accountants in the United States, so the generalisability of the model is as yet unproven. We present results of an attempt to classify 352 nurse leavers from the United Kingdom's National Health Service using the unfolding model. In contrast to the findings of Lee et al. (1999 ), the model failed to classify a substantial number of nurse leavers, and specific hypotheses derived from the model received only partial support. Classification failures were investigated using both quantitative and qualitative data. Leavers were more likely to be classified if they had no dependants and described their quit as avoidable. Although the unfolding model incorporates more kinds of turnover than traditional turnover models, such systematic classification failure casts doubt on claims that it offers a comprehensive account of turnover. We explain failures with reference to: (i) shortcomings in a key measure; (ii) the characteristics of the occupational group studied; and (iii) the extremely tight labor market for this group of leavers. Nous testons la théorie influente concernant le turnover des salariés: the unfolding model ( Lee & Mitchell, 1994 ; Lee, Mitchell, Holtom, McDaniel & Hill, 1999 ). Après avoir décrit et critiqué ce modèle de classification, nous proposons des améliorations tant au niveau théorique qu’empirique. La version actuelle du modèle a été testée à deux reprises auprès de comptables des Etats‐Unis, aussi ce modèle n’a pas pu être généralisé. Nous présentons les résultats obtenus en utilisant le “unfolding model” auprès de 352 infirmières du service de santé national du Royaume‐Uni qui sont sur le départ. Contrairement aux résultats obtenus par Lee et al. (1999 ), le modèle n’a pas permis de classer un nombre substantiel d’infirmières sur le départ et certaines hypothèses découlant de ce modèle ne reçoivent qu’une validation partielle. Ces échecs de classification ont été analysés tant quantitativement que qualitativement. Il ressort que les sujets étaient plus facilement classés si ils n’avaient aucune personne à charge et si ils décrivaient leur départ comme évitable. Bien que le “unfolding model” incorpore plus de formes de turnover que les modèles traditionnels, un échec de classification aussi systématique questionne quant à sa revendication à offrir une approche complète du turnover. Nous expliquons ces échecs par: (i) des imperfections dans la mesure principale (ii) les caractéristiques du groupe de salariés étudiés (iii) un marché du travail extrêmement difficile pour ce groupe de personnes sur le départ.     

Longitudinal Model Predicting Self‐Concept in Pediatric Chronic Illness

Although self‐concept has been identified as salient to the psychosocial adjustment of adolescents dealing with a chronic illness (CI), little research has focused on its predictors it. Given that depression and parent–child attachment have been linked to self‐concept in the population at large, the goal of this study was to evaluate these relationships longitudinally in a sample of adolescents with CI. Using participant data from the Mastering Each New Direction (MEND) program, a 3‐month psychosocial, family based intensive outpatient program for adolescents with CI, we employed multilevel modeling to test longitudinal changes in self‐concept, as predicted by depressive symptoms and parent–child attachment, in a sample of 50 youths (M_age = 14.56, SD_age = 1.82) participating in MEND. Both “time spent in the program” and decreases in depressive symptoms were associated with increases in self‐concept over time. Higher baseline levels of avoidant attachment to both mother and father were also associated with greater initial levels of self‐concept. Targeting depressive symptoms and supporting adaptive changes in attachment may be key to promoting a healthy self‐concept in pediatric CI populations. The association between avoidant attachment and higher baseline self‐concept scores may reflect differences in participants’ autonomy, self‐confidence, or depression. Limitations of the study include variability in the amount of time spent in the program, attrition in final time point measures, and the inability to fully examine and model all potential covariates due to a small sample size (e.g. power).     

Negative mood regulation mediates the relationship between distraction and engagement in pleasurable activities among college smokers

Smoking for negative mood alleviation is a strong predictor of early smoking and early dependence among undergraduates. Little is known about whether adaptive cognitive coping processes (e.g., distraction) may help decrease the likelihood of student smoking for negative mood regulation. The present study tested the hypothesis that distraction would predict (a) greater engagement in adaptive pleasant pastimes and (b) lower rates of smoking behavior among undergraduates (n = 162, 41.9% female). We further assessed whether negative mood regulation expectations would explain both relationships. Results indicated that negative mood regulation fully mediated the relationship between distraction and engagement in pleasurable activities among college smokers. Although the relationships among distraction, negative mood regulation, and cigarette consumption were not significant, they were in the expected direction (negative). Results from the present study point to the importance of prevention efforts focused on enhancing cognitive coping skills in college smokers. Such a focus may lead to more frequent adaptive cognitive coping during negative mood states, presumably instead of smoking.     

Localizing Detroit’s Food System: Boundary-Work and the Politics of Experiential Expertise

ABSTRACT

Recently, different expert actors have attempted to localize Detroit’s food system to bring about greater justice citywide. At first, ‘professional experts’ dominated these efforts, claiming authority in the food system due to their knowledge based in qualified training and applied work experience. Yet a rival group of ‘experiential experts’ soon rose up to assert their power, arguing they and their unique race and place-based know-how merited greater influence. Within just a few years, experiential experts successfully replaced professional ones in commanding much area food localization. I show that experiential experts achieved this power largely through strategic boundary-work, including expulsion, expansion, and protection of autonomy. Nonetheless, some Detroiters and professional experts themselves questioned experiential experts’ legitimacy in removing professional experts from the food system altogether. I thus introduce a fourth form of boundary-work that experiential experts deployed to maintain their clout, what I term ‘accommodation’. Accommodation connotes instances of strategic inclusion where an expert authority facilitates rivals in sharing some influence based on distinct conditions that leave dominant epistemic arrangements generally intact. This occurred in Detroit as experiential experts accommodated professional ones in exercising some food systems power provided they better deploy their own race and place-based knowledge. Such actions helped quell public concern while also protecting experiential experts’ rising authority. Accommodation is useful for understanding cases in which diverse types of experts work together despite that single knowledge-forms guide their activities overall. Further research into accommodation could aid in identifying whether or not diverse forms of knowledge are together influencing decision-making around a range of cases, or if single forms of expertise remain dominant despite the appearance that democratization is taking place.