A comparison of eating, exercise, shape, and weight related symptomatology in males with muscle dysmorphia and anorexia nervosa

In the context of the lack of nosological clarity surrounding muscle dysmorphia, this paper aims to compare the symptomatic profile of muscle dysmorphia and anorexia nervosa in males whilst using measures sensitive to indexing male body image concerns. Twenty-one male muscle dysmorphia patients, 24 male anorexia nervosa patients, and 15 male gym-using controls completed the Eating Disorder Examination-Questionnaire, the Muscle Dysmorphia Disorder Inventory, the Compulsive Exercise Test, and a measure of appearance-enhancing substance use. Men with muscle dysmorphia and anorexia nervosa demonstrated widespread symptomatic similarities spanning the domains of disturbed body image, disordered eating, and exercise behaviour, whilst differences were consistent with the opposing physiques pursued in each condition. Furthermore, correlational analyses revealed significant associations between scores on muscle dysmorphia and eating disorder measures. The present findings provide moderate support for the notion that muscle dysmorphia may be nosologically similar to anorexia nervosa.     

Evaluation of tablet computers for visual function assessment

Recent advances in technology and the increased use of tablet computers for mobile health applications such as vision testing necessitate an understanding of the behavior of the displays of such devices, to facilitate the reproduction of existing or the development of new vision assessment tests. The purpose of this study was to investigate the physical characteristics of one model of tablet computer (iPad mini Retina display) with regard to display consistency across a set of devices (15) and their potential application as clinical vision assessment tools. Once the tablet computer was switched on, it required about 13 min to reach luminance stability, while chromaticity remained constant. The luminance output of the device remained stable until a battery level of 5%. Luminance varied from center to peripheral locations of the display and with viewing angle, whereas the chromaticity did not vary. A minimal (1%) variation in luminance was observed due to temperature, and once again chromaticity remained constant. Also, these devices showed good temporal stability of luminance and chromaticity. All 15 tablet computers showed gamma functions approximating the standard gamma (2.20) and showed similar color gamut sizes, except for the blue primary, which displayed minimal variations. The physical characteristics across the 15 devices were similar and are known, thereby facilitating the use of this model of tablet computer as visual stimulus displays.     

The Impact of Asymmetric Partial Feedback on Response‐Bias

For many decisions we make, we are more likely to receive feedback about some outcomes than about others, and thus we must operate under conditions of asymmetric partial feedback. In this paper, we examine the effects of asymmetric partial feedback on decision making across three experiments. Experiment 1 examines the effects of four partial feedback schedules on decision making in a single‐attribute auditory detection task. Experiment 2 examines these same schedules in the context of a simulated experiment in which virtual participants perform a multi‐attribute choice task. Experiment 3 then examines effects of one partial feedback schedule representative of a real‐world decision‐making domain (personnel selection) using an ecologically informed multi‐attribute choice task. All three experiments reveal that asymmetric partial feedback primarily impacts on response‐bias, a parameter of signal detection theory. These findings can be explained in terms of decision makers' attempts to maximize accuracy and the fact that shifts in response‐bias will, under partial feedback, produce misleading impressions of greater accuracy. Copyright © 2013 John Wiley & Sons, Ltd.     

Pleasure,Arousal, Dominance: Mehrabian and Russell revisited

This paper presents a discursive review of the dimensions pleasure, arousal and dominance that Mehrabian and Russell developed in 1974 to assess environmental perception, experience, and psychological responses. Since then numerous researchers applied these dimensions to assess the experience of the physical environment and its perceived qualities. Although the dimensions appeared to be useful, there is a long-lasting debate going on among environmental psychologists about the interpretation of pleasure, arousal and dominance and its underlying mechanisms. Due to the lack of clarity researchers use different adjectives to describe environmental experiences, which makes any comparison between research findings difficult. This paper shows that the three dimensions can be linked to the current ABC Model of Attitudes: pleasure, arousal and dominance can be respectively related to affective, cognitive and conative responses, i.e. Affect, Cognition and Behaviour (ABC). In addition, connecting the three dimensions to the triad feeling, thinking and acting, can also help to improve our understanding, interpretation and measurement of pleasure, arousal and dominance. Based on this review, it is proposed to re-introduce the three dimensions and to replace the nowadays often used two dimensional model with pleasure and arousal by a three dimensional model, including dominance as a third dimension, to represent the complete range of human responses.     

A Note on Prototypes,Convexity and Fuzzy Sets

The work on prototypes in ontologies pioneered by Rosch [10] and elaborated by Lakoff [8] and Freund [3] is related to vagueness in the sense that the more remote an instance is from a prototype the fewer people agree that it is an example of that prototype. An intuitive example is the prototypical “mother”, and it is observed that more specific instances like ”single mother”, “adoptive mother”, “surrogate mother”, etc., are less and less likely to be classified as “mothers” by experimental subjects. From a different direction Gärdenfors [4] provided a persuasive account of natural predicates to resolve paradoxes of induction like Goodman’s “Grue” predicate [5]. Gärdenfors proposed that “quality dimensions” arising from human cognition and perception impose topologies on concepts such that the ones that appear “natural” to us are convex in these topologies. We show that these two cognitive principles — prototypes and predicate convexity — are equivalent to unimodal (convex) fuzzy characteristic functions for sets. Then we examine the case when the fuzzy set characteristic function is not convex, in particular when it is multi-modal. We argue that this is an indication that the fuzzy concept should really be regarded as a super concept in which the decomposed components are subconcepts in an ontological taxonomy.     

Relationships between emotional intelligence,perceived and actual leadership effectiveness in the military context

Despite the importance of emotional intelligence and leadership effectiveness, few studies have been conducted in real-life contexts and few have distinguished between perceived and actual leadership effectiveness. This repeated-measures study involving 86 officer cadets from the Republic of Singapore Air Force investigated these relationships in a military context. Quantitative data were collected from two self-report questionnaires: the Wong and Law Emotional Intelligence Scale and the Perceived Leadership Effectiveness Scale. These two self-report tools were also administered to the participants’ peers to examine the agreement between self and other assessments of emotional intelligence. A behavior-based leadership assessment rubric completed by the participants’ supervisors was used to determine actual leadership performance. Significant positive relationships were found between emotional intelligence and both perceived and actual leadership effectiveness, as assessed by peers and supervisors, respectively. This study contributes to the understanding of emotional intelligence as a global construct and demonstrates that it is significantly associated with leadership effectiveness in a military training context. The findings have practical implications for using emotional intelligence to enhance leadership effectiveness.     

Trust as an Explanation for Relational Differences in Revenge

We present 4 experiments that explore relational differences in how individuals respond to the harmful behavior of others, finding that revenge is less likely against romantic partners than against various other kinds of offenders (i.e., strangers, coworkers, roommates) both for a laboratory provocation and using hypothetical vignettes. We also implicate trust as a viable explanation for these findings, showing that individuals view the actions of a trusted other (i.e., a romantic partner) as less intentional relative to a less trusted other (i.e., a coworker) and that an experimental manipulation of trust in an offender alters levels of vengeful desires.     

Personality,Meta-Mood Experience,Life Satisfaction,and Anxiety in Australian versus Singaporean Students

This study explores two issues concerning the relationships between personality, meta-mood experience, life satisfaction, and anxiety. First, it explored the incremental value of Extraversion, Agreeableness, Conscientiousness, Neuroticism, and Openness to Experience in predicting the three components of meta-mood experience (that is, attention to feelings, emotional clarity, clarity of feelings and mood repair), after controlling for demographic variables across Australia and Singapore. Second, it explored the incremental value of the three meta-mood experience components in predicting life satisfaction and anxiety, after controlling for demographic variables and personality variables across the two countries. One hundred and eighty nine tertiary students from Australia and 243 tertiary students from Singapore participated in this study. First, hierarchical regression analyses for both samples suggested that Agreeableness and Neuroticism are the two most important personality predictors of meta-mood experience, emotional attention, and emotional repair. Second, hierarchical regression analyses for both samples suggested that emotional repair was a significant predictor for life satisfaction and anxiety, even after controlling for demographic variables and personality variables. These results have implications for therapeutic interventions with life satisfaction versus anxiety. Funding for this research is facilitated partially by a research grant from the National Institute of Education.     

The Socio-economic Contribution of African Migrants to their Home and Host Countries: The Case of Ghanaian Residents in Flanders, Belgium

The issue of South?CNorth migration, especially Africa?CEuropean Union (EU) migration, has moved to the center stage of international development debate. Unfortunately, however, interests and arguments by policy-makers, development agencies, and citizens of the EU mainly focus on the consequences of migration on the ??receiving?? societies. The real causes of migration from Africa and migrants?? contribution to the social and economic development of both the ??sending?? and ??receiving?? countries have not been objectively discussed. Provision of labor to EU member countries, remittances, and financial transfers to and investments made by African migrants in their respective home countries are essential elements in the African?CEU migration and development cooperation debate. It is estimated that South?CNorth migrants?? remittances to developing countries increased from US$2 billion in 1970 to US$71 billion in 2001. Moreover, financial flows emanating from African migrants in the developed countries significantly contribute to the development of the continent. In order to concretize and objectify the discussion, a socio-economic survey was conducted on a representative sample of Ghanaian migrants and their families in the Flemish Community in Belgium. Extensive literature review on migration, administration of questionnaires to Ghanaians resident in Flanders, Belgium, and consultations with African and international experts on migration and international development cooperation were the methods used for this investigation. The paper identifies and analyzes the factors that ??push?? and ??pull?? Ghanaians to migrate to Belgium, the EU, and the developed countries in general. The socio-economic situation of Ghanaian migrants in Flanders and their contribution to the sustainable development of Belgium, the EU, and Ghana are rigorously analyzed. Furthermore, the challenges posed by South?CNorth migration are identified and appropriate and effective win-win mitigation strategies proposed for redressing the problematic in a sustainable way.