Event Timing and age deficits in higher-order sequence learning

Recent studies have reported age deficits in learning sequences that contain subtle sequential regularities (e.g., Curran (1997) Psychological Research, 60(1-2), 24; D. V. Howard et al. (2004) Psychology and Aging, 19(1), 79; Howard, J. H. Jr, & Howard, D. V. (1997). Psychology and Aging, 12(4), 634). This finding is of potential theoretical interest, but the contribution of sequence event timing to this deficit has not been investigated. This study used an alternating serial reaction time task to examine implicit sequence learning in young adults when event timing mimicked that experienced by older adults in previous research. We varied the response-to-stimulus interval directly in Experiment 1 and indirectly by degrading the stimuli to influence response time in Experiment 2. Results indicate that these "aged" young adults learned the higher-order sequence structure implicitly, but they learned less than young controls and more than old adults on some measures of implicit learning in both experiments. In addition, these two different experimental manipulations produced distinct patterns of deficits despite having nearly identical effects on event sequence timing. These findings suggest that event timing alone cannot explain the age deficits observed in high-order implicit sequence learning.     

Mass Media and Religious Identity: A Case Study of Young Witches

Drawing on interviews with 90 young people who have become Witches, we explore the visual media's influence on identity formation and maintenance. Witchcraft is a late modern religion that is highly individualistic and many young people report they have become a Witch without any interaction with other Witches. The rapid growth of interest in this religion among the young since The Craft was first shown provides an important example of the mass media's role in formation of contemporary religious identity. We argue that representations of Witchcraft in the visual mass media (along with other cultural trends such as environmentalism, feminism, and individualism) and cultural resources such as books, Internet sites, and magazines provide a mediated form of social interaction that sustains the plausibility of Witchcraft as a religion. It also helps the young to develop and legitimate their beliefs and practices and develop their Witchcraft persona.     

Anomalous brain dominance and the immune system: Do left-handers have specific immunological patterns?

Geschwind and Behan (1982) and Geschwind and Galaburda (1985a, 1985b, 1985c) suggested a correlation between brain laterality and immune disorders. To test whether this hypothesis holds true not only for the frequency of immune diseases and circulating autoantibodies, but extends also to cellular immunity, we examined the association between handedness and markers of cellular immunity. Twenty-seven left-handed and 37 right-handed subjects were serologically screened for cellular parameters and 22 left-handed subjects were typed for human leukocyte antigen (HLA). When compared to the right-handers, the left-handed group showed a significant decrease in the inflammatory cell types CD3(+) T cells (total T cells), CD4(+) T cells (T-helper cells), and HLA-Dr (MHC-II, antigen-presenting cells) as well as in the CD19(+) cells (B cells) and CD16/CD57(+) cells (natural killer cells). We assume a relationship exists between cerebral hemispheric specialisation and the immune system not only for humoral but also for cellular immunity, and we discuss the role of the major histocompatibility complex in neurological and immunological development.     

A preliminary proposal for a scale to measure the effectiveness of pastoral care with family members of hospitalized patients

The authors conducted an electronic search of the Medline database for articles measuring family satisfaction. Content analysis was then performed on the relevant studies to determine the types of themes included in scales measuring family satisfaction in healthcare settings. The authors used these themes to develop a scale for measuring the effectiveness of pastoral care with family members. A convenience sample of chaplains that was asked to judge the usefulness of each of the scale items, rated them all, on average, to be "somewhat useful" to "very useful" for evaluating chaplains' effectiveness. The value of the scale is discussed in terms of its being a more outcome-oriented measure of effectiveness compared to typical family satisfaction instruments.     

Sex and sex role self-concept as correlates of career decision-making self-efficacy

The relationships between sex and sex-role self-concept on the one hand, and career decision-making self-efficacy (CDMSE) on the other, were tested using data from 85 undergraduate business studies students. As predicted, self-concept masculinity showed a strong positive relationship with CDMSE, and self-concept femininity showed a weak positive relationship. Contrary to prediction, sex was also significantly correlated with CDMSE, though only weakly. The results add further weight to evidence that self-concept outweighs biological sex in some aspects of career development.     

Accountability in a computerized society

This essay warns of eroding accountability in computerized societies. It argues that assumptions about computing and features of situations in which computers are produced create barriers to accountability. Drawing on philosophical analyses of moral blame and responsibility, four barriers are identified: 1) the problem of many hands, 2) the problem of bugs, 3) blaming the computer, and 4) software ownership without liability. The paper concludes with ideas on how to reverse this trend. Several people have contributed generously to this work. Michael Davis, Deborah G. Johnson, Arthur Kuflik, Pamela Samuelson, Debra Satz, Richard De George, Larry May, and Dennis Thompson read drafts and made invaluable suggestions. Reviewers forScience and Engineering Ethics offered thorough and challenging commentary. An earlier version of the paper was presented at The American Philosophical Association, Eastern Division Meeting, December 1993, where audience comments and questions led to clarification of several key issues.     

A new method of monitoring motor activity in baboons

Movement activity of a normal baboon and of a baboon with induced Parkinsonism by unilateral administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) was recorded by the Walter Reed Activity Monitor (or actigraph). Mean activity in the lesioned baboon was 41% less than that of the nonlesioned baboon measured over a 14-day period. In addition, the daily maximum activity value was significantly less in the MPTP-treated baboon. Moreover, resting and sleeping periods were 30% greater in the lesioned animal. The akinesia and resting and sleeping periods were displayed by the lesioned baboon throughout the day, whereas the control baboon showed them only at night. The data representing summarized movement activity are in accordance with observations of bradykinesia, hypokinesia, and akinesia of the MPTP-treated baboon. The actigraph was well tolerated by the animal because its small size and weight made it largely unobtrusive. We suggest that the actigraph is an appropriate device for measuring motor activity in nonhuman primates.     

Reporting experiences of panic: Sex differences in a community survey

This report aims to look at whether the results of a community survey of the prevalence of panic attacks and panic disorder could be influenced by a possible sex difference in the willingness to return screening questionnaires and to acknowledge psychiatric symptoms. The results suggest that men are less likely to return questionnaires, and that this effect is more marked in the younger age groups. This could indicate that an important group of people is being under-represented in prevalence figures for panic and possibly other psychiatric diagnoses.