Asymmetries in finger-tapping interference produced by mental versus manual rotation of Shepard and Metzler type objects

Two experiments were conducted using dual-task finger-tapping procedures to examine cerebral hemisphere laterization for mental versus manual rotation. Actual three-dimensional block-designs based on Shepard and Metzler's (1971) abstract three-dimensional cubes were constructed. Forty-eight right-handed introductory psychology students participated in each study. The first experiment showed greater right-hand than left-hand interference for mental rotation implicating more left-hemisphere involvement. In contrast, more left-hand than right-hand finger-tapping disruption with manual rotation was observed suggesting more right-hemisphere involvement. A second experiment was conducted to determine if the right-hemisphere involvement found with manual rotation was due to the manual activity of handling and rotating the blocks. Results showed that dual-task interference produced by irrelevant manual rotation combined with mental rotation was not lateralized. Thus, the pattern of results indicate that the manipulospatial processing required in the first experiment was responsible for the asymmetry implicating right-hemisphere involvement.     

Religion, Social Capital, and Health

Religion??s association with better physical health has been partially explained by health behaviors, psychosocial variables, and biological factors; but these factors do not fully explain the religion?Chealth connection. In concert with the religion and health literature, a burgeoning literature has linked social capital with salubrious health outcomes. Religious organizations are recognized in the social capital literature as producers and facilitators of social capital. However, few studies have examined the potential mediating role of social capital in the religion?Chealth relationship. Thus data from the 2006 Social Capital Community Benchmark Survey were analyzed for 10,828 adults. The composite unstandardized indirect effect from religion to social capital onto health was significant (???=?0.098; p?<?0.001). The unstandardized direct pathway from religion to self-reported health (???=?0.015; p?=?0.336) indicated that social capital is a mediator in the religion?Chealth relationship. Among the demographic variables investigated, only age and income had a significant direct effect on self-reported health.     

Religion and Body Weight Among African-American Adults Attempting to Lose Weight: An Exploratory Study

Religion and body weight was explored at two time points among overweight and obese African-American adults. Baseline and follow-up data were collected from 26 adults participating in a weight loss intervention and analyzed using multiple regression analyses of religious measures, body weight, and other variables. Frequent church attendance was significantly associated with greater weight lost from baseline to 16-week follow-up. In this exploratory study, religious interactions and experiences may be involved in shaping body weight among African-Americans attempting to lose weight.