Comforting when we cannot heal: the ethics of palliative sedation

This essay considers whether palliative sedation is or is not appropriate medical care. This requires one to consider (a) whether, in addition to the good of health, relief of suffering is also a proper end of medicine; (b) whether unconsciousness can ever be a good for a human being; and (c) how double-effect reasoning can help us think about difficult cases. The author concludes that palliative sedation may be proper medical care, but only in a limited range of cases.     

Contributions of Game Genre and Masculinity Ideologies to Associations Between Video Game Play and Men’s Risk-Taking Behavior

Previous investigations of mainstream video games have documented a high prevalence of risk-promoting content, as well as a positive relation between video game play and participation in risk-taking behaviors such as reckless driving, substance use, and delinquency. In this study, we extend this work by investigating the role of video game genre and masculinity ideology within this relation. A sample of 273 undergraduate men from a large Midwestern university completed online surveys of their video game exposure, masculinity ideology, and participation in a range of high-risk behaviors. Results indicate that playing sports video games is associated with greater alcohol use, drug use, and delinquent behaviors, but action games are only associated with greater delinquency. In contrast, playing online video games was negatively associated with alcohol and drug use. Furthermore, the relation between sports video games and participation in risky behaviors was fully mediated by participants’ adherence to masculinity ideology. These results reveal that the relations between video game play and risk outcomes were strongest for sports video games, and in some cases, were mediated by masculinity ideology.     

Skepticism about Character Traits

The first part of this article discusses recent skepticism about character traits. The second describes various forms of virtue ethics as reactions to such skepticism. The philosopher J.-P. Sartre argued in the 1940s that character traits are pretenses, a view that the sociologist E. Goffman elaborated in the 1950s. Since then social psychologists have shown that attributions of character traits tend to be inaccurate through the ignoring of situational factors. (Personality psychology has tended to concentrate on people’s conceptions of personality and character rather than on the accuracy of these conceptions). Similarly, the political theorist R. Hardin has argued for situational explanations of bloody social disputes in the former Yugoslavia and in Africa, rather than explanations in terms of ethnic hatred for example. A version of virtue ethics might identify virtues as characteristics of acts rather than character traits, as traits consisting in actual regularities in behavior, or as robust dispositions that would manifest themselves also in counterfactual situations.     

Do dogs (Canis familiaris) show contagious yawning?

We report an experimental investigation into whether domesticated dogs display contagious yawning. Fifteen dogs were shown video clips of (1) humans and (2) dogs displaying yawns and open-mouth expressions (not yawns) to investigate whether dogs showed contagious yawning to either of these social stimuli. Only one dog performed significantly more yawns during or shortly after viewing yawning videos than to the open-mouth videos, and most of these yawns occurred to the human videos. No dogs showed significantly more yawning to the open-mouth videos (human or dog). The percentage of dogs showing contagious yawning was less than chimpanzees and humans showing this behavior, and considerably less than a recently published report investigating this behavior in dogs (Joly-Mascheroni et al. in Biol Lett 4:446–448, 2008).     

Environmental and Behavioral Influences on Gene Activity

The central dogma of molecular biology holds that 'information' flows from the genes to the structure of the proteins that the genes bring about through the formula DNA → RNA → protein. In this view, a set of master genes activates the DNA necessary to produce the appropriate proteins that the organism needs during development. In contrast to this view, probabilistic epigenesis holds that necessarily there are signals from the internal and external environment that activate DNA to produce the appropriate proteins. To support this view, I review a substantial body of evidence showing that external environmental influences on gene activation are normally occurring events in a large variety of organisms, including humans. This demonstrates how genes and environments work together to produce functional organisms, thus extending the model of probabilistic epigenesis.