Effects of a 6-week aerobic dance intervention on body image and physical self-perceptions in adolescent girls

Research examining the impact of physical activity on body image dissatisfaction and physical self-perceptions has been both limited and equivocal. The current research investigated the effects of 6-week aerobic dance on these variables with 50 British schoolgirls aged 13–14 years. A cross-over design was used with two equivalent groups taught normal physical education and aerobic dance in a different order. The Body Attitude Questionnaire (BAQ) and Children and Youth Physical Self-Perception Profile (CY-PSPP) were administered as pre, mid and post-test to each participant in each group before the first intervention, at the change over and after 12 weeks. The results of this study revealed that participation in 6 weeks of aerobic dance significantly reduced body image dissatisfaction (Attractiveness, Feeling Fat, Salience and Strength and Fitness) and enhanced physical self-perceptions (Body Attractiveness and Physical Self-Worth), although these improvements were not sustained. The implications and future research directions are discussed.     

Expert face coding: Configural and component coding of own-race and other-race faces

Configural and holistic coding are hallmarks of face perception. Although recent studies have shown that own-race faces are coded more holistically than other-race faces, the evidence for better configural coding of own-race faces is equivocal. We directly measured configural and component coding of own- and other-race male faces in Caucasian and Chinese participants. We manipulated individual features (components) or their spatial relations (configurations) using a novel morphing method to vary difficulty parametrically and tested sensitivity to these changes in a sequential matching task. Both configural and component coding were better for upright own-race than for upright other-race faces. Inversion impaired detection of configural changes more than it did detection of component changes, but also impaired performance more for easier discriminations,independent of type of change. These results challenge explanations of face expertise that rely solely on configural and holistic processing, and also call into question the widespread interpretation of large inversion decrements as diagnostic of configural coding.     

Evaluation of drug toxicity in clinical trials

An increasing number of drugs removed from the market because of unacceptable toxicity raises concerns regarding preapproval testing of drug safety. In the present paper it is postulated that the non-inferiority type of trial should be abandoned in favor of the superiority trial with active controls and less stringent (p<0.1, both for efficacy and toxicity) statistics. This approach will increase sensitivity of detection of drug-induced adverse effects at the expense of increasing false positive results regarding the difference in efficacy between the tested and reference drug. Such a move will increase the protection of future patients. In addition, the proposed design is far more acceptable from the clinical (e.g. no need to specify the statistically expected “unimportant” number of deaths) and ethical points of view, as well as being favored by the strong incentive of involved parties. In the second part of this paper arguments are presented in favor of the hypothesis that placebo (still used in some superiority trials) does not induce adverse effects. The assertion that placebo may induce adverse effects is probably biased by the nature of the clinical experiment. Such a conclusion is supported by studies indicating that placebo-induced adverse effects are disease — and treatment — specific. The modification of clinical trials according to the proposed changes may increase the trials’ sensitivity at detecting adverse effects of drugs. A lecture on the subject of this paper was presented at the 6th International Bioethics Conference on the subject of ‘The Responsible Conduct of Basic and Clinical Research’, held in Warsaw, Poland, 3–4 June 2005.     

Very long-term retention of a novel

This study investigated the very long-term retention of a full-length novel originally studied as part of a university undergraduate course. One hundred and forty former students completed three tests designed to assess retention of Charles Dickens' Hard Times. Retention intervals ranged from 3 to 39 months. Subjects' responses when they were asked to report their most vivid and enduring memory of the novel were consistent with story grammar models which claim that components of a story which are higher in a hierarchy are remembered better than those lower in the hierarchy. A free recall test of the names and roles of the characters in the novel found that retention of both declined rapidly in the first few months following acquisition, that names were forgotten more quickly than roles, and that retention of both had stabilized above baseline before the longest retention interval. These data are interpreted in terms of a schema account of memory retention, in which retention of schematic knowledge (roles), but not non-schematic knowledge (names) can be mediated by abstract knowledge structures. The results of a fact verification test showed that memory for events of high importance in the novel was better than memory for events of low importance, consistent with models that suggest that texts and stories are represented hierarchically in memory. Confidence ratings also declined over time and showed that subjects generally assessed the accuracy of their responses correctly. The significant predictors of memory for the novel were retention interval and the mark obtained on a coursework essay on Hard Times.     

Parenting typologies in Georgian and Belgian adolescents: Associations with self-esteem

The parenting context is of fundamental importance for the optimal development of adolescents. Making use of a person-centered approach, we derived parenting typologies from the perspective of Georgian and Belgian adolescents based on four dimensions of perceived parenting (responsiveness, structure, psychological control, and autonomy support). Further, we examined how perceived parenting typologies were associated with adolescents' self-esteem. The study sample included 511 Georgian and 830 Belgian adolescents (N = 1341; 48% female). A cluster-analytic procedure on the full sample was conducted separately for mothers and fathers. The analysis yielded five parenting typologies: Supportive—Highly structuring (high responsiveness and structure), Highly structuring—Moderately controlling (high structure and psychological control, moderate—responsiveness), Supportive—Low structuring/controlling (high responsiveness and autonomy support, low structure and psychological control), Highly controlling (very high psychological control, low responsiveness and autonomy support) and Uninvolved (low on all dimensions). Results indicated that the Highly structuring—Moderately controlling paternal cluster was more prevalent in the Belgian sample. A country-moderating effect was found with the paternal Uninvolved profile associated with low levels of self-esteem in Belgian adolescents, but with moderate levels of self-esteem in Georgian adolescents.     

Sensitive caregiving and reward responsivity: A novel mechanism linking parenting and executive functions development in early childhood

Sensitive caregiving is an essential aspect of positive parenting that influences executive functions development, but the mechanisms underlying this association are less clear. Using data from the Family Life Project, a large prospective longitudinal sample of 1292 families residing in rural, predominately low-income communities, the current study examined whether sensitive caregiving impacts executive functions development by shaping behavioral reward processing systems in early postnatal life. Results indicated that higher levels of sensitive caregiving during infancy were associated with heightened reward responsivity at age 4, which in turn predicted superior executive functions ability at age 5. Notably, children's reward responsivity partially mediated the relationship between sensitive caregiving in infancy and executive functions ability at school entry. These findings add to prior work on early experience and children's executive functions and highlight caregiver scaffolding of developing reward processing systems as a potential foundational mechanism for supporting adaptive behavior and self-regulation across the lifespan.     

The Shattering of the Stimulus Barrier: The Case for an Integrative Approach in Short-Term Treatment of Psychological Trauma

The paper argues that the integrative psychotherapy approach is ideally suited to the treatment of psychological trauma. A brief term intervention model, devised by psychotherapists working with trauma in the South African context, is presented to illustrate this premise. It is asserted that posttraumatic stress represents a disorder in which dysfunction occurs both internally and externally, according to Freud at the interface of these two aspects of psychological functioning, i.e., at the ego boundary. Disturbance manifests in recognizable cognitive, behavioral, and somatic symptoms and in addition carries unconscious associations and anxieties. The ideal approach to treatment thus appears to be to draw on the relative strengths of both the psychodynamic and cognitive-behavioral schools. Existing trauma intervention models reflect the centrality of integration in many respects, although this does not seem to be explicitly recognized. The five components of the model referred to above are outlined and each component is explored in terms of its efficacy within both a cognitive-behavioral and a psychodynamic framework. Illustrative case material is provided to demonstrate the mechanisms at work in each case. The paper argues that the clinical success of the model lies in its integrative perspective and that psychotherapy integration should be recognized as the approach of choice in the treatment of traumatized individuals.     

Do facial first impressions reflect a shared social reality?

Influential facial impression models have repeatedly shown that trustworthiness, youthful–attractiveness, and dominance dimensions subserve a wide variety of first impressions formed from strangers’ faces, suggestive of a shared social reality. However, these models are built from impressions aggregated across observers. Critically, recent work has now shown substantial inter-observer differences in facial impressions, raising the important question of whether these dimensional models based on aggregated group data are meaningful at the individual observer level. We addressed this question with a novel case series approach, using factor analyses of ratings of twelve different traits to build individual models of facial impressions for different observers. Strikingly, three dimensions of trustworthiness, youthful/attractiveness, and competence/dominance appeared across the majority of these individual observer models, demonstrating that the dimensional approach is indeed meaningful at the individual level. Nonetheless, we also found differences in the stability of the competence/dominance dimension across observers. Taken together, results suggest that individual differences in impressions arise in the context of a largely common structure that supports a shared social reality.