Exposure to rf electromagnetic energy decreases aggressive behavior

It was predicted from the dopamine-opiate system hypothesis that aggression induced by light tail pressure would be modified by exposure of the animals to radiofrequency electromagnetic energy. In a series of three experiments, it was found that there was a substantial decrease in aggressive behavior during exposure to EM energy at incident power densities as low as 50 μW/cm². This is consistent with previously published reports that indicate the dopamine and opiate systems of the brain are influenced by exposure to low-intensity EM energy. It would appear that EM energy exposure could be used as a probe in the study of aggression and in relating it to brain chemistry. Since this energy has become ubiquitous in the environment, and quite uneven in distribution, there may be implications for understanding aggressive behavior from a clinical standpoint as well as from the standpoint of necessary controls in experiments.     

Maternal aggression in rats: Changes over pregnancy and lactation in a sprague-dawley strain

Maternal aggression in a Sprague-Dawley strain of laboratory rat (Charles River CD) was explored from Day 1 after mating on Day 0 through Day 24 of lactation (L0-L24). Aggression toward unfamiliar male “intruders” during 10-min tests was low among nonpregnant, nonlactating females and during the first 10 days of gestation. Frequency of attack on intruders increased moderately but significantly by Gestation Day 16 (G16; Experiment 1) or G21 (Experiment 2), a prepartum phenomenon not previously reported in laboratory rats. Levels of aggression were highest, however, during the first 9 days of lactation, when attacks averaged more than 6 per 10-min session. Attacks declined sharply in frequency after L14 and by L24 did not exceed levels observed among nonpregnant females. Experiment 3 examined the importance of the test site (home cage with nest and pups, if any, vs unfamiliar cage without nest or pups) to agonistic behavior associated with pregnancy and lactation. Late pregnant females tested in a novel cage were not aggressive; however, females tested shortly after delivering their pups were highly aggressive, averaging over four attacks per 5-min session. In novel cage tests frequency of attack remained high through L4 but declined significantly by L7. These data are consistent with the hypothesis that maternal aggression at its onset is primarily under hormonal control, but becomes increasingly dependent upon external factors, presumably pup stimulation, during the postpartum period.     

Galton and sex differences: An historical note

The psychological study of sex differences is a special area of interest within differential psychology. Differential psychology was launched as a scientific field of research in the latter half of the nineteenth century by Sir Francis Galton. Galton's early research on sex differences in psychological traits gives him the distinction of being the “father” of the modern study of sex differences. Galton's empirical findings and his interpretation of sex differences were heavily influenced by his Victorian sexist attitudes. The early history of the modern study of sex differences exemplifies the intimate relation between facts and values.     

Religion and Cardiovascular Disease Risk

Objectives: To determine whether cardiovascular-disease risk-factor profiles of majority-church members differ from those of non-church members we examined a large population-based random sample. Methods: Data from the two cross-sectional surveys of the Pawtucket Heart Health Program conducted in 1981–82 (n = 2442) and 1983–84 (n = 2799) were evaluated. Trained interviewers collected physiological measures including height, weight, systolic and diastolic blood pressure, and a small blood sample (for total cholesterol and high-density lipoprotein). Smoking, exercise, sociodemographics, and church membership were determined by self-report. Results: Church members were older, more likely to be female, Portuguese, married, have more people living in their households, and were also more likely to be greater than 20% overweight. Forty-eight percent of church members reported never having smoked cigarettes compared to 35.4% of non-church members. Differences in systolic blood pressure and total cholesterol were attributable to age, sex, and ethnicity. Conclusions: Aside from cigarette-smoking status and body-mass index, the risk profile of the two groups was not different, indicating that health-promotion interventions geared to the general population may not need to be tailored too extensively for members of religious organizations based on health status. On the other hand, the demographic differences and easy access to entire families may require more attention.     

Is Physical Alteration a Sufficient Reason to Prohibit Ritual Infant Circumcision?

Journal of Religion and Health - European culture and thought have long disfavored ritual child circumcision, which is obligatory to Jews and Muslims. Much opposition to this practice hinges on the...     

Search performance with discrete-cell stimulus arrays: filtered naturalistic images and probabilistic markers

In order to partially fill the gap between search studies with artificial and naturalistic stimuli, experiments with segmented and spatially filtered images of real stimuli in the discrete cells of search arrays were conducted. RT × set size functions obtained with the spatially filtered arrays were compared with those obtained with geometric and other types of arrays. With the aid of Fourier analysis, components of target certainty/uncertainty, target-distractor similarity/dissimilarity, and distractor homogeneity/heterogeneity were evaluated for their effects on search performance and efficiency. The comparative effects of valid/invalid and ambiguous/unambiguous markers of search items were included in the experiments to probe the potential contributions of top-down and bottom-up control to search with naturalistic stimuli. Visual coding in the form of spatial frequency passbands and top-down preferences for distractor search were used to explain the results.     

Extending Corporate Social Responsibility Research to the Human Resource Management and Organizational Behavior Domains: A Look to the Future

Although issues of corporate social responsibility (CSR) have become an important topic of research, there have been few studies on this topic conducted in the fields of human resource (HR) management and organizational behavior (OB). To address this gap, we edited a special issue of Personnel Psychology that explicitly focuses attention on CSR in the HR/OB domains. In this introductory editorial, we synthesize and extend the four articles published in the special issue. We also address issues relating to the conceptualization and measurement of CSR, the application of microlevel theories to CSR, and the practical and methodological implications of research in this domain. Finally, we provide suggestions for future research linking CSR with some of the most frequently studied topics in HR/OB. We propose that a focus on HR/OB will improve our understanding of the antecedents and consequences of CSR and also benefit HR/OB in terms of bridging the science–practice and micro–macro gaps.