Multi-limb coordination and rhythmic variability under varying sensory availability conditions in children with DCD

Children with Developmental Coordination Disorder (DCD) have sensory processing deficits; how do these influence the interface between sensory input and motor performance? Previously, we found that children with DCD were less able to organize and maintain a gross motor coordination task in time to an auditory cue, particularly at higher frequencies [Whitall, J., Getchell, N., McMenamin, S., Horn, C., Wilms-Floet, A., & Clark, J. (2006). Perception-action coupling in children with and without DCD: Frequency locking between task relevant auditory signals and motor responses in a dual motor task. Child: Care, Health, and Development, 32, 679-692]. In the present study, we examine the same task (clapping in-phase to marching on a platform) under conditions involving the removal of vision and hearing. Eleven children with DCD (mean=7.21, SD=0.52 years), 7 typically developing (TD) children (mean=6.95+/-0.72 years), and 10 adults performed continuous clapping while marching under four conditions: with vision and hearing, without vision, without hearing, and without both. Results showed no significant condition effects for any measure taken. The DCD group was more variable in phasing their claps and footfalls than both the adult group and the TD group. There were also significant group effects for inter-clap interval coefficient of variation and inter-footfall interval coefficient of variation, with the DCD group being the most variable for both measures. Coherence analysis between limb combinations (e.g., left arm-right arm, right arm-left leg) revealed that the adults exhibited significantly greater coherence for each combination than both of the children's groups. The TD group showed significantly greater coherence than the DCD group for every limb combination except foot-foot and left hand-right foot. Measures of approximate entropy indicated that adults differed from children both with and without DCD in the structure of the variability across a trial with adults showing more complexity. Children with DCD are able to accomplish a self-initiated gross-motor coordination task but with increased variability for most but not all measures compared to typically developing children. The availability of visual and/or auditory information does not play a significant role in stabilizing temporal coordination of this task, suggesting that these are not salient sources of information for this particular task.     

Benefits of Accounts of Well-Being— For Societies and for Psychological Science

The decisions of business leaders and government officials are currently guided by economic and social indicators. It is proposed that accounts of well-being be collected on an ongoing basis to complement the existing indicators. Accounts of subjective well-being would track the societal groups where happiness, life satisfaction, engagement, and positive feelings are high versus low, would indicate the activities that people find enjoyable versus unpleasant, and would monitor changing levels of well-being over time. The accounts would serve decision-makers by making important information on well-being and ill-being available to them. They would also greatly help applied psychology by drawing more attention and interest to important outcomes that are likely to result from psychological interventions.
Les décisions des chefs d'entreprise et des responsables gouvernementaux se fondent actuellement sur des indicateurs sociaux et économiques. On propose de recueillir des données relatives au bien-être de façon continue en complément des indicateurs existants. Les mesures du bien-être subjectif détecteraient les groupes sociaux où le bonheur, la satisfaction de vivre, le sens des responsabilités et les sentiments positifs sont élevés ou bas, indiqueraient les activités que les gens trouvent agréables ou non et suivraient avec le temps les changements dans le niveau du bien-être. Ces mesures seraient utiles aux décisionnaires en mettant à leur disposition des informations importantes sur le bien-être et son contraire. Elles seraient aussi d'un grand secours pour la psychologie appliquée en accordant davantage d'attention et d'intérêt aux conséquences importantes susceptibles de résulter des interventions psychologiques.     

Impact of Conflict on Mental Health in Northern Ireland: The Mediating Role of Intergroup Forgiveness and Collective Guilt

The aim of the present research was to investigate the mediating role of group-level forgiveness and guilt in the relationship between victimhood (the extent to which the conflict affected an individual's life), exposure to violence (the level of violence in their area of residence), and group identity on the one hand, and mild psychiatric morbidity on the other. Specifically the study focused on the psychological impact of the ethnopolitical conflict in Northern Ireland, utilizing people's identification with either the Catholic or Protestant community. Our results revealed that intergroup forgiveness mediated the relationship between both victimhood and group identification, as predictors, and mild psychiatric morbidity. Collective guilt, on the other hand, mediated the relationship between both exposure to violence and group identification, as predictors, and intergroup forgiveness. Overall this study shows that forgiveness and collective guilt can act as mediators in the relationship between impact of ethnopolitical conflict and mental health, at the group level, and thus demonstrates their centrality to the reconciliation process. Implications for intergroup reconciliation initiatives in Northern Ireland are discussed.     

Sexual Consent in Heterosexual Relationships: Development of a New Measure

The extensive research on date rape attitudes and experiences has left sexual consent itself largely unexamined. The objective of this study was to develop a measure to assess women’s and men’s attitudes and behaviors regarding sexual consent. Using both focus groups (N = 18) and a mail survey (N = 514) of undergraduate students at a Canadian university, two scales of sexual consent were developed: (1) a Sexual Consent Attitudes Scale, and (2) a Sexual Consent Behaviors Scale. Preliminary psychometric evidence suggested good reliability and validity. As hypothesized, women, more than men, preferred a more cautious approach to sexual consent by stressing the need to obtain consent more explicitly. Multiple regression analyses supported a reciprocal relationship between sexual consent attitudes and sexual consent behaviors.     

Visual object affordances: object orientation

Five experiments systematically investigated whether orientation is a visual object property that affords action. The primary aim was to establish the existence of a pure physical affordance (PPA) of object orientation, independent of any semantic object-action associations or visually salient areas towards which visual attention might be biased. Taken together, the data from these experiments suggest that firstly PPAs of object orientation do exist, and secondly, the behavioural effects that reveal them are larger and more robust when the object appears to be graspable, and is oriented in depth (rather than just frontally) such that its leading edge appears to point outwards in space towards a particular hand of the viewer.     

The dynamics of daily events and well-being across cultures: when less is more

The authors examined cultural and individual differences in the relation between daily events and daily satisfaction. In a preliminary study, they established cross-cultural equivalence of 50 daily events. In the main study, participants in the United States, Korea, and Japan completed daily surveys on the 50 events and daily satisfaction for 21 days. The multilevel random coefficient model analyses showed that (a) the within-person association between positive events and daily satisfaction was significantly stronger among Asian American, Korean, and Japanese participants than among European American participants and (b) the within-person association between positive events and daily satisfaction was significantly weaker among individuals high in global life satisfaction than among those low in global life satisfaction. The findings demonstrate a weaker effect of positive events on daily well-being among individuals and cultures high in global well-being.