The 2017 codetection of electromagnetic radiation and gravitational waves was the first of its kind and marked the beginning of multimessenger astronomy. But this event has been treated within recent literature as something of an end as well. The 2017 detection is often regarded as an instance of falsification for all theories of modified gravity which postulate gravitational waves propagate along separate geodesics from electromagnetic radiation, perhaps most notably Jacob Bekenstein’s Tensor-Vector-Scalar gravity. I critically examine this explicit endorsement of falsification (...) by astronomers and astrophysicists. While the current state of multimetric modified gravity theories is dim, recent developments in multimessenger observation do not offer a deductive falsification. Rather such evidence should be regarded as a corroboration of the null hypothesis, following Deborah Mayo's error-statistical account. (shrink)

The rational choice assumption that any chosen behavior can be understood as optimizing material self?interest is not borne out by psychological research. Expressive motives, for example, are prominent in the symbols of politics, in social relationships, and in the arts of persuasion. Moreover, instrumentality is a mindset that is learned (perhaps overlearned), and can be situationally manipulated; because it is valued in our society, it provides a privileged vocabulary for justifying behaviors that may have been performed for other reasons, and (...) encourages the illusory belief in the universality of rational choice. (shrink)

Seven features which in practice seem to differentiate belief systems from knowledge systems are discussed. These are: nonconsensuality, “existence beliefs,” alternative worlds, evaluative components, episodic material, unboundedness, and variable credences. Each of these features gives rise to challenging representation problems. Progress on any of these problems within artificial intelligence would be helpful in the study of knowledge systems as well as belief systems, inasmuch as the distinction between the two types of systems is not absolute.

"Ethics for Modern Life," an anthology of classic and contemporary readings, offers students a well-balanced and cohesive introduction to ethics.

Self-medication behaviour is the use of natural materials or chemical substances to manipulate behaviour or alter the body’s response to parasites or pathogens. Self-medication can be preventive, performed before an individual becomes infected or diseased, and/or therapeutic, performed after an individual becomes infected or diseased. We summarized all available reports of self-medication in mammals and reconstructed its evolution. We found that reports of self-medication were restricted to eutherian mammals and evolved at least four times independently. Self-medication was most commonly reported (...) in primates. Detailed analyses of primates suggest that self-medication is a life-history trait associated with body size, absolute brain size and longevity, but we found no support for the hypothesis that self-medication evolved to reduce the costs of social living. Large, longer-lived species might thus benefit uniquely from self-medication. (shrink)

While the ancients described the world as a single organism and the medieval view was theological in nature, modern thought has envisioned the world as a mechanism composed of smaller mechanisms. Raziel Abelson argues that this mechanistic explanation, when applied to human action, is dangerous because it "threatens us with a kind of spiritual annihilation...;[and] it undermines our belief in freedom of the will and with it the reality of choice, value, and moral responsibility." In Lawless Mind, he presents (...) a theory about the relationship between mind and body in order to show how voluntary actions can be causally explained while still allowing for free will.Abelson attempts to reconcile the centuries-old debate between determinists and free-willers by making a distinction between two kinds of causality. "The impact of this [mechanistic] view on psychology, ethics, and politics is such as to replace moral judgment with the search for causal mechanisms. In psychology it results in reducing moral wisdom to medical therapy, in politics it reduces statesmanship to game theory and rational persuasion to behavioral modification, and in ethics it reduces moral responsibility to social conformity. If we are all programmed automata, as mechanism suggests, then the way to improve our performances is to hire a mechanic of the mind to tinker with our wiring. Is this the way to think about ourselves? I shall try to show that it is not."Abelson's novel theory of mind and psychological causality provides solutions for problems in metaphysics, ethics, psychology, and the social sciences. The issues addressed include free will and responsibility, mind-body interaction, models of psychotherapy, causal explanations in sociology, and the difference between minds and computers. Author note: Raziel Abelson is Professor of Philosophy at New York University and author of Persons: A Study of Philosophical Psychology. (shrink)

Introduction: A general trend in the psychological literature suggests that guilt contributes to morality more than shame does. Unlike shame-prone individuals, guilt-prone individuals internalize the causality of negative events, attribute responsibility in the first person, and engage in responsible behavior. However, it is not known how guilt- and shame-proneness interact with the attribution of responsibility to others. -/- Methods: In two Web-based experiments, participants reported their attributions of moral culpability (i.e., responsibility, causality, punishment and decision-making) about morally ambiguous acts of (...) killing in different conditions. In Study 1 the vignettes were presented in the 1st person, while in Study 2 in the 3rd person. To test proneness to guilt and shame, we utilized the GASP scale, which differentiates between the affective and behavioral components of each emotion. Statistical analyses were performed in Matlab and R. -/- Results: We found that guilt- and shame-proneness were associated with the severity of attributions in both the first and the third person, but the effect was strong only in the guilt case (both subtypes) and shame-affect case, and not in the shame-behavior case. We call this the Moralizing Effect. -/- Discussion: We wonder whether our finding that guilt-prone people tend to attribute a higher degree of culpability to others is really consistent with the view that guilt motivates people to choose the “moral paths in life”. This echoes views about the harmful aspects of guilt, which have been expressed historically in philosophy, for example, by Friedrich Nietzsche. (shrink)

In an earlier paper it was suggested that relationships between population density, migration, and the frequency of consanguineous marriage depended on variation in the social class composition of populations. For two valleys in the western Pyrenees, it was found that migration distances are shorter in areas with lower population density and that this could in part be attributed to the effects of social class independently of the occupations of the population. The present paper investigates further the relationships between migration, the (...) frequency of consanguineous marriage and inbreeding in the Roncal valley in Navarre, Spain, for the period 1877–1915. The Roncal valley contains seven villages, each a separate administrative unit. Almost all the total population of 3900 live in these nucleated villages and there are few isolated households. The area of the valley is 420 km2, and the population density 9·28 inhabitants/km2. (shrink)