Alteration of Auditory Cortex Activity with a Visual Stimulus through Conditioning: A 2-Deoxyglucose Analysis

In two experiments, the 2-deoxyglucose metabolic mapping technique was used to examine the hypothesis that a stimulus of one modality (a light) will begin to activate the sensory cortex of a stimulus of another modality (a tone) with which it has been repeatedly paired. Adult gerbils received repeated presentations of either a light or the light paired with a tone known to affect 2DG labeling patterns in the auditory cortex. Intermittent footshock was included on a pseudo-random basis to maintain arousal in the subjects. One day after training, each gerbil was injected with 2DG and either received repeated presentations of the light only or was simply exposed to the training context. Analysis of the auditory cortex revealed no differences in overall metabolic activity of the auditory cortex between the groups. However, in both experiments, the light that was previously paired with the tone changed the relative activity of the cortical subfields compared to the light not previously paired with the tone. Specifically, the results indicate greater activity in the anterior auditory field (AAF—Experiments 1 and 2) and the posterior fields (DPVP—Experiment 2) relative to the primary field AI in response to the light that was previously paired with the tone during training. Gerbils either only placed in the context during the 2DG session or that received unpaired presentations of the light and tone during training did not show this shift in relative labeling between the subfields. Because no differences in overall activity of the auditory cortex were found, we conclude that the shift in relative labeling between the subfields reflects, on average, both an increase in activity of fields AAF and DPVP and a concomitant decrease in AI activity in response to the light stimulus. The results have implications for our understanding both of brain learning mechanisms in general and the potential functions of auditory cortex subfields in particular.     

The effect of the repeated presentation of a standard interval on the reproduction of the standard

The Langley Porter Neuropsychiatrie Institute, San Francisco, California 94122 Eleven human Ss (five male and six female) reproduced intervals of 1, 2, and 3 sec delimited by clicks after the standard intervals had been repeated one, three, or five times. The absolute error of reproduction decreased with increasing repetition of the standard for intervals of 2 and 3 sec. The effect was more pronounced with increasing duration among female Ss.     

“Hooking Up” at College: Does Religion Make a Difference?

Recent attention from media, scholars, and religious leadership has focused on the dating activities of college students, particularly in relation to casual physical encounters or what some have termed "hooking up." In this article, we examine the impact of both individual and institutional religious involvement on "hooking up" in a national sample of college women ( N = 1,000). The results of our analysis reveal several important patterns. First, Catholic college women are more likely to have "hooked up" while at school than college women with no religious affiliation. Second, conservative Protestant college women are less likely to have "hooked up" while at school than college women with no religious affiliation; however, this difference is mediated or explained by church attendance, which is protective against "hooking up." Finally, women who attend colleges and universities with a Catholic affiliation are more likely to have hooked up while at school than women who attend academic institutions with no religious affiliation, net of individual-level religious involvement.     

The Relevance of People Versus Objects in Explaining Females’ Advantage over Males in Appearance Accuracy

Do females remember their surroundings better than males? Does it matter who or what is in those surroundings? In small groups, 108 undergraduates from a Midwestern university in the USA were instructed to pay attention to a videotaped person (target) while seated in an office with an experimenter (non-target). Afterwards, in a surprise recall task, participants’ memory for the appearance of the target, non-target, and office was tested. Females’ greater interpersonal orientation was predicted to give them an advantage over males in memory for only the people. Results showed that females had better memory for the target and non-target but not the office. Discussion centers on the importance of people versus objects in explaining females’ greater appearance accuracy.     

The Contribution of Music to Positive Aging: A Review

Many people value music as an important part of their everyday lives. The published literature reveals that the role of music in life is varied: it can be recreational, educational, social, emotional, therapeutic, and spiritual. The importance and relevance of music depends on the life needs and interests of the individual and the social group within which he/she lives. It is now widely recognized that music for many older people is crucial in supporting a sense of well-being. The article reviews the evidence on the role of music in promoting health and well-being, and how it can produce positive psychological and physiological benefits for individuals. The aim of this article is to increase awareness among health professionals of the importance of music and discuss how it can be used to add to older people's lives.     

Ginkgo Biloba: A Cognitive Enhancer?

Contents:
Phytobiology, p.3
What are the Findings Regarding Ginkgo's Cognitive Effects in Humans?, p.3
Animal Models, p.5
Biological Actions, p.7
Conclusions, p.9     

The role of overt rehearsal in enhanced conscious memory for emotional events

This study tested the hypothesis that overt rehearsal is sufficient to explain enhanced memory associated with emotion by experimentally manipulating rehearsal of emotional material. Participants viewed two sets of film clips, one set of emotional films and one set of relatively neutral films. One set of films was viewed in each of two sessions, with approximately 1 week between the sessions. Participants were given a free recall test of all of films viewed approximately 1 week after the second session. Rehearsal was manipulated by instructing one group of participants not to discuss the films with anyone (no talk group) and instructing a second group to discuss both sets of films with at least three people (forced talk group). A third group consisted of participants instructed not to discuss the films with anyone, but who did not comply with these instructions (talkers group). All groups recalled significantly more of the emotional films than the neutral films. Furthermore, the relative number of emotional and neutral films recalled did not differ significantly among the three groups. The results indicate that overt rehearsal is insufficient to explain the enhancing effects of emotion on memory.     

Psychosocial mediation of religious coping styles: a study of short-term psychological distress following cardiac surgery

Although religiousness and religious coping styles are well-documented predictors of well-being, research on the mechanisms through which religious coping styles operate is sparse. This prospective study examined religious coping styles, hope, and social support as pathways of the influence of general religiousness (religious importance and involvement) on the reduced postoperative psychological distress of 309 cardiac patients. Results of structural equation modeling indicated that controlling for preoperative distress, gender, and education, religiousness contributed to positive religious coping, which in turn was associated with less distress via a path fully mediated by the secular factors of social support and hope. Furthermore, negative religious coping styles, although correlated at the bivariate level with preoperative distress but not with religiousness, were associated both directly and indirectly with greater post-operative distress via the same mediators.     

Bioethics, theology, and social change

Recent years have witnessed a concern among theological bioethicists that secular debate has grown increasingly "thin," and that "thick" religious traditions and their spokespersons have been correspondingly excluded. This essay disputes that analysis. First, religious and theological voices compete for public attention and effectiveness with the equally "thick" cultural traditions of modern science and market capitalism. The distinctive contribution of religion should be to emphasize social justice in access to the benefits of health care, challenging the for-profit global marketing of research and biotechnology to wealthy consumers. Second, religion and theology have been and are still socially effective in sponsoring activism for practical change, both locally and globally. This claim will be supported with specific examples; with familiar concepts like subsidiarity and "middle axioms"; and with recent analyses of "participatory democracy" and of emerging, decentralized forms of global governance.