Development of bimanual skill: the search for stable patterns of coordination

In 2 experiments, dynamic systems theory predictions concerning intrinsic dynamics and variability of bimanual coordination were examined at different developmental stages. In Experiment 1, ten 4-, 6-, 7-, 8-, and 10-year-old children and adults performed unimanual dominant, unimanual nondominant, and bimanual continuous circle drawing. All tasks were performed at the participants' preferred rate, size, and mode of coordination. The 4-, 6-, and 7-year-old children produced larger circles with longer durations than those of the 8- and 10-year-olds and the adults. That finding demonstrates that younger children display different intrinsic dynamics than older children and adults. The 4-, 6-, and 7-year-old children also displayed more variability in bimanual coordination (more time in less stable patterns of coordination, higher standard deviation in relative phase) and produced more transitions between coordination patterns than the 8- and 10-year-olds and the adults. In Experiment 2, the same participants performed bimanual circles at increasing rates. Consistent with predictions of the HKB model (H. Haken, J. A. S. Kelso, & H. Bunz, 1985), the number of transitions decreased as speed increased. Some support was found for the notion that age-related variables of attention and rate contribute to the increased variability in young children's bimanual coordination.     

Objects and their locations in exogenous cuing.

Anatomical, physiological, and behavioral studies provide support for separate object- and location-based components of visual attention. Although studies of object-based components have usually involved voluntary attention, more recent evidence has suggested that objects may play an independent role in reflexive exogenous orienting, at least at long stimulus onset asynchronies (SOAs). In the present experiments, the role of objects in reflexive attentional orienting was investigated by developing a task in which location and object cuing could be separately examined for both short and long SOAs. Typical location cuing effects were obtained, indicating facilitation at short cue-target intervals and inhibition of return (IOR) at longer intervals. In contrast, object cuing resulted in facilitation for cued objects at long cue-target intervals and no object-based IOR. Interestingly, object cuing primarily affected targets at cued locations, and not those at uncued locations. Together, the experiments examine the interactive nature of objects and locations in exogenous orienting and seem most consistent with a location-mediated view of object-based orienting.     

Postpartum mood disorders: Results of an online survey

Purpose: Postpartum mood disorders (PMDs), the distressing mental and emotional symptoms experienced by women after childbirth, are just now receiving the attention they warrant. Given the serious and sometimes life‐threatening nature of PMDs, we used a qualitative research design to examine more closely the nature of symptoms experienced and the effective strategies women used to cope with PMD. Participants: The respondents were 252 members of PMD and breast‐feeding (La Leche League) support groups throughout the United States. Method: Participants responded anonymously to open‐ended questions in an online survey. The data were reviewed by the research team to determine common themes and prevailing issues. Results: Participants reported myriad different symptoms and used a host of various strategies to alleviate problematic thoughts, feelings, and behaviours following childbirth. Postpartum symptoms affected participants’ plans to have future children. For some women, symptoms became more intense during subsequent births. Despite the problematic nature of PMD, more than half of the participants reported receiving little or no information from healthcare providers about PMDs. Implications for counsellors and other healthcare providers are discussed in detail.     

Reflections on the use of spirituality to privilege religion in scientific discourse: incorporating considerations of self

Many lay writers have claimed that psychologists and other scientists need to integrate something called “spirituality” into their work. This spirituality, usually undefined, is not something the truth of which may be determined by scientific means, yet it should be called upon to guide or govern our actions in certain all-important ways. This paper deconstructs two such calls that, in the end, are based on the notion of revealed, or religiously held, truth. A paradigm by which spirituality can be investigated integrating the individual self with culture is proposed, and use of this paradigm when considering modernization and supply-side theses of religious propagation is suggested.