Visual Signal Detection Measured by Event-Related Potentials

Signal Detection tasks typically involve within-subject signal changes. Such a procedure does not lend itself to event-related potential (ERP) experiments where the need for averaging necessitates the maintenance of consistent stimulus parameters. In the present ERP study we adopt a novel approach to thresholding that allows within-subject signal manipulation. The Signal Detection task required the identification of letter targets, formed from dots, in a random dot field. ERP waveforms were segmented into three windows corresponding to N1, N2, and P300 components. Analysis shows that ERP variations are dependent on both task demands and response characteristics for N1, N2, and P300 components.     

Comparison of male and female junior athletes' self-perceptions and body image.

Few studies have examined sex differences in body perceptions in sports where the pressure to display a certain physique is reduced. The aim of the present study was to investigate sex differences in physical self-perceptions and body image in junior athletes who are involved in sprint kayaking, a sport where a low body weight is relatively unimportant. 12 male and 13 female members (aged 13-17 yr.) of the British Canoe Union Junior Development Squad for sprint-kayak racing completed the Physical Self-perception Profile for Children and the Multidimensional Body-Self Relations Questionnaire. Multivariate analysis of variance indicated that girls reported significandy higher Sports Competence and lower Appearance Orientation scores than boys. This study has raised a number of issues surrounding the physical self-perceptions and body image of junior athletes involved in a power- and strength-based sport. It seems that male athletes may also experience pressures to conform to a male version of a 'beautiful body'.     

Memory Development in Children: Implications for Children as Witnesses in Situations of Possible Abuse

This article reviews the physiological constructs of memory development as they relate to a child's ability to recall accurately detailed accounts of sexual abuse. Counselors are provided with practical suggestions for increasing the reliability of child witnesses.     

The retrieval of ‘liveness’ in William James's Will to Believe

International Journal for Philosophy of Religion -     

Left anterior lobectomy and category-specific naming

Damasio and colleagues (1996) have proposed that the left anterior temporal region supports knowledge pertaining to living objects, whereas more posterior temporal regions play a critical role in naming nonliving things. Accordingly, one might expect that left-sided anterior temporal lobectomy should have a more profound effect on the naming of living as opposed to nonliving things. As part of a multicenter collaborative project, seventy-nine patients (all left-hemisphere speech dominant) were tested pre- and post-left-temporal lobectomy on a task that required naming of living and nonliving items equated for name frequency, familiarity, and visual complexity. Consistent with the proposals of Damasio et al. (1996), left temporal lobectomy impaired naming ability, particularly for living things. When individual outcomes were considered, twice as many patients showed a relative decline in naming living as opposed to nonliving things.     

A bibliographic sampler

The author presents a critical survey of recent books in or related to pastoral care. A review of books that may be considered of immediate benefit to the pastor and practitioner is followed by comments on several books of a more specialized and theoretical nature. A final section describes several recent publications that reflect psychosocial critiques of contemporary society and the place of psychology in it.Dr. Hunter is the Book Review Editor ofPastoral Psychology. He serves as Assistant Professor of Pastoral Theology, Candler School of Theology, Emory University, Atlanta, Georgia 30322.     

Long-term effects of parental wartime captivity on children: Children of POW and MIA servicemen

The question asked by this study was: Are there possible second-generational effects, not only for children of prisoners of war and hostages, but also for children of parents who were/are missing in action? This report, reviewing the literature on prolonged parental wartime captivity in relation to longterm effects on children, with a specific focus on the Center for POW Studies of Vietnam era families, illustrates the strong relationship between mothers' and children's abilities to cope with their highly stressful and ambiguous situation.