Female economic dependence and the morality of promiscuity

This article is made available through the Brunel Open Access Publishing Fund. Copyright @ The Author(s) 2014.In environments in which female economic dependence on a male mate is higher, male parental investment is more essential. In such environments, therefore, both sexes should value paternity certainty more and thus object more to promiscuity (because promiscuity undermines paternity certainty). We tested this theory of anti-promiscuity morality in two studies (N = 656 and N = 4,626) using U.S. samples. In both, we examined whether opposition to promiscuity was higher among people who perceived greater female economic dependence in their social network. In Study 2, we also tested whether economic indicators of female economic dependence (e.g., female income, welfare availability) predicted anti-promiscuity morality at the state level. Results from both studies supported the proposed theory. At the individual level, perceived female economic dependence explained significant variance in anti-promiscuity morality, even after controlling for variance explained by age, sex, religiosity, political conservatism, and the anti-promiscuity views of geographical neighbors. At the state level, median female income was strongly negatively related to anti-promiscuity morality and this relationship was fully mediated by perceived female economic dependence. These results were consistent with the view that anti-promiscuity beliefs may function to promote paternity certainty in circumstances where male parental investment is particularly important

Confrontational scavenging as a possible source for language and cooperation

The emergence of language and the high degree of cooperation found among humans seems to require more than a straightforward enhancement of primate traits. Some triggering episode unique to human ancestors was likely necessary. Here it is argued that confrontational scavenging was such an episode. Arguments for and against an established confrontational scavenging niche are discussed, as well as the probable effects of such a niche on language and co-operation. Finally, several possible directions for future research are suggested

Macula-off retinal detachment--a matter of time?

BACKGROUND: The aim of this study was to determine the influence of the lag time between macular detachment and surgical intervention on post-operative visual acuity gain in patients with rhegmatogenous macula-off retinal detachment. PATIENTS AND METHODS: We retrospectively evaluated the medical records of 62 consecutive patients having undergone scleral buckling surgery for rhegmatogenous macula-off retinal detachment. The correlation of gender, age, refraction, number of retinal breaks, development of cataract during follow-up, pre-operative visual acuity and timing of surgical intervention with final visual acuity and post-operative visual acuity gain were determined. Mean follow-up time was 12.7 months. RESULTS: A correlation with final visual acuity was found for pre-operative visual acuity and lag between the beginning of symptoms and surgical intervention. A correlation with visual acuity gain was found only for timing of surgical procedure. When divided into subgroups operated after 0, 1-3, 4-6, or 7-9 days, respectively, visual recovery was better the earlier the patients underwent surgical repair. Compared to surgery at day 0, statistical significance was found only for patients operated 4 or more days after the occurrence of symptoms. CONCLUSION: The first three days seem to represent a relatively safe period during which surgery for macula-off retinal detachment may be postponed without compromising the patient's visual prognosis