In two studies we investigated whether people evidence an effect of moral contamination with respect to hypothetical organ transplants. This was achieved by asking participants to make judgements after presenting either positive or negative background information about the donor. In the first study, positive/negative background information had a corresponding effect on three judgements with attitudes to a heart transplant most pronounced by negative background information relative to good information and controls. This effect was replicated in the second study with both (...) heart and liver transplantation. Negative effects were stronger than positive effects in all conditions consistent with a negativity bias, but again stronger with regards to organs than controls. These results confirm findings from surveys that reveal real patients are concerned about moral contamination following organ transplantation and show that this bias in evident even in hypothetical, non-life-threatening scenarios. In a third study we found a significantly stronger moral contagion effect in Japanese relative to English participants, suggesting that concerns about moral contagion may be moderated by culture. (shrink)

Although young children might be uncertain about the nature of certain representations, most modern adults would explicitly maintain that photographs have no ongoing physical connection the objects that they depict. We demonstrate here in three studies that destruction of a photograph of a sentimental object produces significantly more electrodermal activity than destruction of photographs of other control objects. This response is not attributable to anxiety about being observed whilst destroying the picture, nor is it entirely due to simple visual association (...) ‐ the same response occurs when the photograph does not resemble the object. We suggest that this effect may reflect a tacit acceptance of “sympathetic magic”. (shrink)

The belief that damaging an object may harm the individual to which the object relates is common among adults. We explored whether arousal following the destruction of a photograph of a loved partner is greater than that following the destruction of a photograph of a stranger, and whether this response is greater than when a photograph representing a non-person sentimental attachment is destroyed, using a measure of skin conductance response. Long-term supporters of a football team, who were also in a (...) long-term relationship, showed increased arousal when asked to destroy a photograph of their partner, but not a photograph of their team, even though both elicited equivalent ratings of emotional attachment. This may be because football teams are conceptualized differently from individuals. Future studies should address whether destruction of symbols that represent the enduring nature of the team elicit more emotional distress than photograph. (shrink)

Do humans start life with the capacity to detect and mentally represent the objects around them? Or is our object knowledge instead derived only as the result of prolonged experience with the external world? Are we simply able to perceive objects by watching their actions in the world, or do we have to act on objects ourselves in order to learn about their behavior? Finally, do we come to know all aspects of objects in the same way, or are some (...) aspects of our object understanding more epistemologically privileged than others? -/- "The Origins of Object Knowledge" presents the most up-to-date survey of the research into how the developing human mind understands the world of objects and their properties. It presents some of the best findings from leading research groups in the field of object representation approached from the perspective of developmental and comparative psychology. Topics covered in the book all address some aspect of what objects are from a psychological perspective; how humans and animals conceive what they are made of; what properties they possess; how we count them and how we categorize them; even how the difference between animate and inanimate objects leads to different expectations. The chapters also cover the variety of methodologies and techniques that must be used to study infants, young children, and non-human primates and the value of combining approaches to discovering what each group knows. -/- Bringing together leading researchers, communicating the most contemporary and exciting findings within the field of object representation, this volume will be an important work in the cognitive sciences, and of interest to those across the fields of developmental and comparative psychology. (shrink)

Adults identified as believers and sceptics based on self-reports from a supernatural beliefs scale were assessed on two measures of inhibition; the Stroop Color‐Word Task and the Wisconsin Card Sorting Test. Both groups were of equal educational status and background. However, believers made significantly more errors than sceptics on all subscales of the WCST but were equivalent in performance on the Stroop measure. This finding is consistent with the idea that supernatural beliefs in adults are related to some types of (...) inhibitory control. (shrink)

We propose another positive illusion that fits with McKay & Dennett's (M&D's) criteria for adaptive misbeliefs. This illusion is pervasive in adult reasoning but we focus on its prevalence in children's developing theories. It is a strongly held conviction arising from normal functioning of the doxastic system that confers adaptive advantage on the individual.

Jeffery et al. accurately identify the importance of developing an understanding of spatial reference frames in a three-dimensional world. We examine human spatial cognition via a unique paradigm that investigates the role of saliency and adjusting reference frames. This includes work with adults, typically developing children, and children who develop non-typically (e.g., those with autism).

Belief in souls is only one component of supernatural thinking in which individuals infer the presence of invisible mechanisms that explain events as paranormal rather than natural. We believe it is important to place greater emphasis on the prevalence of supernatural beliefs across other domains, if only to counter simplistic divisions between rationality and irrationality recently aligned with the contentious science/religion debate.

Authentic objects are those that have a historical link to a person, event, time, or place of some significance. The current study examines everyday beliefs about authentic objects, with three primary goals: to determine the scope of adults' evaluation of authentic objects, to examine such evaluation in two distinct cultural settings, and to determine whether a person's attachment history predicts evaluation of authentic objects. We found that college students in the UK and the USA consistently evaluate a broad range of (...) authentic items as more valuable than matched control objects, more desirable to keep, and more desirable to touch, though only non-personal authentic items were judged to be more appropriate for display in a museum. These patterns were remarkably similar across the two cultural contexts. Additionally, those who had an attachment object as a child evaluated objects more favorably, and in particular judged authentic objects to be more valuable. Altogether, these results demonstrate broad endorsement of "positive contagion" among college-educated adults. (shrink)

Psychological essentialism operates in two realms that have consequences for our attitudes towards groups and individuals. Although essentialism is more familiar in the context of biological group membership, it can also be evoked when considering unique artefacts, especially when they are emotionally significant items.

People often assign ownership to the person who has invested labor into making an object (labor rule). However, labor usually improves objects and increases their value, and it has not been investigated whether these considerations underlie people's use of the labor rule. We presented participants with third-party ownership conflicts between an owner of materials and an artist who used the materials for some artwork. Experiment 1 revealed that participants were more likely to transfer ownership to the artist for low-value materials (...) than for high-value materials, and Experiment 2 showed that this effect was further moderated by the amount of effort the artist had invested. A third experiment confirmed that participants transferred ownership more often if the artist's labor had increased the value of the materials than when it had added no value. These findings suggest that considerations for value underlie ownership transfers following the investment of labor. (shrink)

As Hecht points out, finding unequivocal evidence for phylogenetic knowledge structures is problematic, if not impossible. But if phylogeny could be dropped, then internalization starts to resemble the “theory theory” approaches of developmental psychology. For example, an appreciation of falling objects leads to a very strong bias that could be regarded as internalized knowledge acquired during ontogeny. [Hecht; Shepard].

Ownership of resources can be established by evolved competitive and cooperative mechanisms as explained by the target article. However, there is one aspect of ownership that is not captured by computational models which is important to identity, namely the role of owned items as components of “the extended self” hypothesis.

The language of propositional modal logic is extended by the introduction of sequents. Validity of a modal sequent on a frame is defined, and modal sequent-axiomatic classes of frames are introduced. Through the use of modal algebras and general frames, a study of the properties of such classes is begun.

The current paradigm in medicine generally distinguishes between genetic and environmental causes of disease. Although the word paradigm has become a commonplace, the theories of Thomas Kuhn have not received much attention in the journals of medicine. Kuhn's structuralist method differs radically from the daily activities of the scientific method itself. Using linguistic theory, this essay offers a structuralist reading of Thomas Kuhn's The Structure of Scientific Revolutions. Our purpose is to highlight the similarities between these structuralist models of science (...) and language. In part, we focus on the logic that enables Kuhn to assert the priority of perception over interpretation in the history of science. To illustrate some of these issues, we refer to the distinction between environmental and genetic causes of disease. While the activity of scientific research results in the revision of concepts in science, the production of significant differences that shape our knowledge is in part a social and linguistic process. (shrink)

Descartes contends that he, or his mind, is really distinct from his body. Many philosophers have little patience with this claim. What could be more obvious than that the mind depends on the body? But their impatience often dissolves when they recognize that Descartes only asserts a de re modal statement. To say that one thing is really distinct from another is to say that each can exist apart from the other. But should we grant Descartes this de re modal (...) claim itself?Descartes's argument for the real distinction is based on the assumption that clear and distinct conception provides a reliable guide to possibility. (shrink)

To consider power as not only the direct physical oppression of others, but as a production of authority through discursive knowledge and a claimed ‘expertise’ of the world, has been one of Foucault’s great legacies to critical work on mental health and illness. As arbiters of the ‘truth’ on what is and what is not mental pathology, I agree with Swerdfager that the privileged knowledge of the mental health professions and the consequential marginalization of other forms of knowledge on distress (...) can be better theorized through an investigation of the power/knowledge nexus. Practically, scholars and researchers can begin to address these... (shrink)

Despite the popularity of equality as a political value, egalitarianism as a political theory has never, I think, been fully or successfully defended. I aim in this paper to begin the defense of such a view. The egalitarianism I have in mind has as its ideal a condition of equal wellbeing for all persons at the highest possible level of well-being, i.e. maximum equal well-being. Egalitarianism holds that society should be arranged so as to promote and maintain this state. Defending (...) such a view involves, as I see it, three tasks. First, the ideal I have Just mentioned must be made clearer and more specific and its implications for the distribution of particular goods such as material possessions and liberty must be revealed. Second, positive arguments must be given in support of an equal distribution of well-being as a requirement of morality and Justice. And, thirdly, arguments to the effect that there are Just or Justified inequalities which seriously outweigh the claims of equality must be rebutted. (shrink)

Boehm's model conceptualizes a common ancestor to humans, chimpanzees, and bonobos at several million years B.P., followed by a model of prehistoric foragers at 25,000-50,000 B.P. based on ethnographic data from twentieth-century hunters and gatherers. By putting processes of complex communication into the picture, we can refine Boehm's model considerably by filling in significant scenarios for humans beginning at perhaps 2 million years ago. These include a suite of features that include constraints on sexual behaviour, a rudimentary division of labour, (...) the gendering of morality, socialized control over junior males, increased group size, increased home range size, the reduction of bullying behaviour, and a reverse dominance hierarchy that promotes egalitarianism among fully adult males. Boehm's model emphasizes the last two of these, but it is consistent with the others as well. Cultural or proto-cultural elaboration of beliefs and associated practices is the symbolic dimension of morality and is an important component of human evolution. Boehm's model is extremely important for outlining socio-political mechanisms and concomitants in the formation of adult male egalitarian groups, and, in the process, identifying a key element in the evolution of human morality. (shrink)