Do the previous termviewpoint costsnext term incurred when naming rotated familiar objects arise during initial identification or during previous termconsolidation?next term To answer this question we employed an attentional blink (AB) task where two target objects appeared amongst a rapid stream of distractor objects. Our assumption was that while both targets and distractors undergo initial identification only targets are consolidated in a form that allows overt report. We presented line drawings of objects with a usual upright canonical orientation, and separately (...) manipulated the orientation of targets and distractors. In two experiments, targets were defined by colour, whereas in a third experiment they were defined by semantic category. Target 1 orientation influenced the AB, with objects rotated by 90° causing a larger second target deficit than upright and upside-down objects. However, distractor orientation did not affect the magnitude of the second target deficit, regardless of whether targets were defined by colour or semantic category. Taken together, these findings suggest that the visual representations involved in the preliminary recognition of familiar objects are previous termviewpointnext term-invariant and that previous termviewpoint costsnext term are incurred when these objects are consolidated for report. (shrink)

Spatial asymmetries are an intriguing feature of directed attention. Recent observations indicate an influence of temperament upon the direction of these asymmetries. It is unknown whether this influence generalises to visual orienting behaviour. The aim of the current study was therefore to explore the relationship between temperament and measures of spatial orienting as a function of target hemifield. An exogenous cueing task was administered to 92 healthy participants. Temperament was assessed using Carver and White's (1994) Behavioural Inhibition System and Behavioural (...) Activation System (BIS/BAS) scales. Individuals with high sensitivity to punishment and low sensitivity to reward showed a leftward asymmetry of directed attention when there was no informative spatial cue provided. This asymmetry was not present when targets were preceded by spatial cues that were either valid or invalid. The findings support the notion that individual variations in temperament influence spatial asymmetries in visual orienting, but only when lateral targets are preceded by a non-directional (neutral) cue. The results are discussed in terms of hemispheric asymmetries and dopamine activity. (shrink)

The question of whether object recognition is orientation-invariant or orientation-dependent was investigated using a repetition blindness (RB) paradigm. In RB, the second occurrence of a repeated stimulus is less likely to be reported, compared to the occurrence of a different stimulus, if it occurs within a short time of the first presentation. This failure is usually interpreted as a difficulty in assigning two separate episodic tokens to the same visual type. Thus, RB can provide useful information about which representations are (...) treated as the same by the visual system. Two experiments tested whether RB occurs for repeated objects that were either in identical orientations, or differed by 30, 60, 90, or 180°. Significant RB was found for all orientation differences, consistent with the existence of orientation-invariant object representations. However, under some circumstances, RB was reduced or even eliminated when the repeated object was rotated by 180°, suggesting easier individuation of the repeated objects in this case. A third experiment confirmed that the upside-down orientation is processed more easily than other rotated orientations. The results indicate that, although object identity can be determined independently of orientation, orientation plays an important role in establishing distinct episodic representations of a repeated object, thus enabling one to report them as separate events. (shrink)

Eye movements during false-belief tasks can reveal an individual's capacity to implicitly monitor others' mental states (theory of mind - ToM). It has been suggested, based on the results of a single-trial-experiment, that this ability is impaired in those with a high-functioning autism spectrum disorder (ASD), despite neurotypical-like performance on explicit ToM measures. However, given there are known attention differences and visual hypersensitivities in ASD it is important to establish whether such impairments are evident over time. In addition, investigating implicit (...) ToM using a repeated trial approach allows an assessment of whether learning processes can reduce the ASD impairment in this ability, as is the case with explicit ToM. Here we investigated the temporal profile of implicit ToM in individuals with ASD and a control group. Despite similar performance on explicit ToM measures, ASD-diagnosed individuals showed no evidence of implicit false-belief tracking even over a one-hour period and many trials, whereas control participants did. These findings demonstrate that the systems involved in implicit and explicit ToM are distinct and hint that impaired implicit false-belief tracking may play an important role in ASD. Further, they indicate that learning processes do not alleviate this impairment across the presentation of multiple trials. (shrink)

Paul E. Griffiths argues that most research on the emotions has been as misguided as Aristotelian efforts to study "superlunary objects" - objects...

At the beginning of the 1950s most students of animal behavior in Britain saw the instinct concept developed by Konrad Lorenz in the 1930s as the central theoretical construct of the new ethology. In the mid 1950s J.B.S. Haldane made substantial efforts to undermine Lorenz''s status as the founder of the new discipline, challenging his priority on key ethological concepts. Haldane was also critical of Lorenz''s sharp distinction between instinctive and learnt behavior. This was inconsistent with Haldane''s account of the (...) evolution of language, and, according to Haldane, inconsistent with elementary genetics. British attitudes to the instinct concept changed dramatically in the wake of Daniel S. Lehraman''s 1953 critique of Lorenz, and by the 1960s Lorenz drew a clear distinction between his own views and those of the English-speaking ethologists. The inconsistencies between Lorenz''s ideas and the trends in contemporary evolutionary genetics that are reflected in Haldane''s critiques may help to explain why the Lorenzian instinct concept was unable to maintain itself in Britian. (shrink)

The historian Raphael Falk has described the gene as a ‘concept in tension’ (Falk 2000) – an idea pulled this way and that by the differing demands of different kinds of biological work. Several authors have suggested that in the light of contemporary molecular biology ‘gene’ is no more than a handy term which acquires a specific meaning only in a specific scientific context in which it occurs. Hence the best way to answer the question ‘what is a gene’, and (...) the only way to provide a truly philosophical answer to that question is to outline the diversity of conceptions of the gene and the reasons for this diversity. In this essay we draw on the extensive literature in the history of biology to explain how the concept has changed over time in response to the changing demands of the biosciences . Finally, we outline some of the conceptions of the gene current today. The seeds of change are implicit in many of those current conceptions and the future of the gene concept looks set to be at as turbulent as the past. (shrink)

In a recent article in this journal, Zachary Ardern criticizes our view that the most promising candidate for a naturalized criterion of disease is the "selected effects" account of biological function and dysfunction. Here we reply to Ardern’s criticisms and, more generally, clarify the relationship between adaptation and dysfunction in the evolution of health and disease.

Developmental systems theory is an attempt to sum up the ideas of a research tradition in developmental psychobiology that goes back at least to Daniel Lehrman’s work in the 1950s. It yields a representation of evolution that is quite capable of accommodating the traditional themes of natural selection and also the new results that are emerging from evolutionary developmental biology. But it adds something else - a framework for thinking about development and evolution without the distorting dichotomization of biological processes (...) into gene and non-gene and the vestiges of the ‘black-boxing’ of developmental processes in the modern synthesis, such as the asymmetric use of the concept of information. Phenomena that are marginalized in current gene-centric conceptions, such as extra-genetic inheritance, niche construction and phenotypic plasticity are placed center stage. (shrink)

A number of philosophers and ‘evolutionary psychologists’ have argued that attacks on adaptationism in contemporary biology are misguided. These thinkers identify anti-adaptationism with advocacy of non-adaptive modes of explanation. They overlook the influence of anti-adaptationism in the development of more rigorous forms of adaptive explanation. Many biologists who reject adaptationism do not reject Darwinism. Instead, they have pioneered the contemporary historical turn in the study of adaptation. One real issue which remains unresolved amongst these methodological advances is the nature of (...) ‘phylogenetic inertia’. To what extent is an adaptive explanation needed for the persistence of a trait as well as its origin? (shrink)

Experimental philosophy of science gathers empirical data on how key scientific concepts are understood by particular scientific communities. In this paper we briefly describe two recent studies in experimental philosophy of biology, one investigating the concept of the gene, the other the concept of innateness. The use of experimental methods reveals facts about these concepts that would not be accessible using the traditional method of intuitions about possible cases. It also contributes to the study of conceptual change in science, which (...) we understand as the result of a form of conceptual ecology, in which concepts become adapted to specific epistemic niches. (shrink)

Heyes’ book is an important contribution that rightly integrates cognitive development and cultural evolution. However, understanding the cultural evolution of cognitive gadgets requires a deeper appreciation of complexity, feedback, and self-organization than her book exhibits.

Psychopathy fascinates. Modernist writers construct out of it an image of alienated individualism pursuing the moment, killing they know not why, exploiting in passing, troubled, if troubled at all, not by guilt, but by perplexity (Camus 1989; Gide 1995; Mailer 1957; Musil 1996). Psychiatrists and psychologists—even those who should know better—are drawn by it to take off into philosophical speculation about morality, evil, and the beast in man (Mullen 1992; Simon 1996). Philosophers succumb to the temptation of attempting to ground (...) speculation in the supposed facticity of psychopathy. -/- Psychopathy is a cultural construct with roots going back to the eighteenth century, but which only came to full flower over the last fifty years (Hare 1998; Lewis 1974). The currently fashionable constructions of psychopathy find wide acceptance among clinicians and academics. The problem is, however, whether the concept has connections that have been established to the behavior, psychopathology, or the structure and function of brain worthy of according even a modest level of scientific status. There is little point in basing an argument on some supposed scientific gold standard if what glitters is iron pyrites (fools' gold). -/- Neil Levy's opening paragraph contains the statement "Yet in other respects they seem quite irrational; so much so that the term moral insanity has sometimes been applied to them" (p. 129). This both asserts that there is a category "them," namely the psychopaths, and connects them to "moral insanity." Moral insanity entered the language of psychiatry when Pritchard chose to use the term to translate Pinel's category of mania sans deliré (Pritchard 1836). Pinel was attempting to conceptualize a range of disorders that bordered on insanity in the sense of severe disturbances of affect, judgment, and behavior, but that were not accompanied by hallucinations or delusions (Pinel 1798/1964). In today's terminology, the cases he described would probably fall into diagnostic groups, including major depression, bipolar disorder, epilepsy, and a range of personality disorders. A number of his more striking case histories involved antisocial and even murderous behavior, which probably reflected Pinel's role in assessing offenders for the criminal courts of Paris. Pritchard's use of the English word "moral" reflected an appeal first to its use at the time to designate something which was like or similar, but not identical (a usage the OED labels "vulgar"), and second moral in the sense of ethical, conforming to virtuous behavior. Anglophones seized on the latter meaning, although Pinel emphasized the former. Forty years later, Henry Maudsley, the most widely read psychiatrist of his generation, could assert that moral insanity was as real as Colour blindness, some people being Colour blind and some moral blind (Maudsley 1879). Moral insanity became connected variously to phrenology with its own bump over the underlying moral cortex, with the twisted genetics of degeneration, with atavistic theories of criminality, and with a range of disorders of brain from epilepsy to frontal lobe damage (Combed 1853; Ellis 1890; Pick 1989). Although it is anachronistic to use the terms "psychopathy" and "moral insanity" together, it is clear they occupied a similar social and psychiatric space, albeit in different era. This should caution against too ready acceptance of psychopathy which may turn out to be as empty and dangerous a conceptualization as moral insanity. Why dangerous? Dangerous to those labeled, because the morally insane and the moral imbeciles were placed in preventive detention in asylums and prisons, and even sterilized in some jurisdictions. Dangerous to society, because it gave a spurious scientific justification for viewing crime not as reflecting the social evils of deprivation, ignorance, and inequality but as the ravages of the born criminals. -/- Psychopaths are not, as Levy asserts, "(causally) responsible for … more than fifty percent of violent crime" (p. 129). A proportion of violent offenders, which varies widely between observers, are labeled psychopaths. This is often on the basis of Hare's psychopathy checklist, which is a subjective, albeit through training aspiring to be reproducible, and to some extent self-sustaining, evaluation system (Hare 1980, 2003). Part of the checklist gathers data on prior antisocial behavior; part constrains the examiner to subjectively estimate such matters as glibness and callousness, part requires judgments about whether the... (shrink)

The development of evolutionary approaches to psychology from Classical Ethology through Sociobiology to Evolutionary Psychology is outlined and the main tenets of today's Evolutionary Psychology briefly examined: the heuristic value of evolutionary thinking for psychology, the massive modularity thesis and the monomorphic mind thesis.

It has been suggested that moods are higher order-dispositions. This proposal is considered, and various shortcomings uncovered. The notion of a higher-order disposition is replaced by the more general notion of a higher-order functional state. An account is given in which moods are higher-order functional states, and the overall system of moods is a higher-order functional description of the mind. This proposal is defended in two ways. First, it is shown to capture some central features of our pre-scientific conception of (...) moods. Secondly, it is argued that the account is more likely to be psychologically realistic (in a sense to be defined) than accounts which are behaviourally equivalent, but which do not employ a hierarchy of functional descriptions. It is suggested that the hierarchical structure of the model mirrors a feature of the physical states that realise moods and emotions. (shrink)

The relationship between individuals' creativity and their ethical ideologies appears to be complex. Applying Forsyth's (1980, 1992) personal moral philosophy model which consists of two independent ethical ideology dimensions, idealism and relativism, we hypothesized and found support for a positive relationship between creativity and relativism. It appears that creative people are less likely than non-creative people to follow universal rules in their moral decision making. However, contrary to our hypothesis and the general stereotype that creative people are less caring about (...) others, we found a positive relationship between creativity and idealism. These findings indicate that highly creative people are likely to be what Forsyth called "situationists," individuals with both an ethic of caring and a pragmatic moral decision-making style. The finding that creative individuals tend to be situationists, and particularly that they tend to be high in idealism, appears to refute the line of reasoning that argues for a "creative personality" characterized in part by social insensitivity. Understanding the relationship between creativity and ethical ideologies has important implications for researchers, managers and teachers. (shrink)

Donation after cardiac death (DCD) is associated with many problems, including ischemic injury, high rates of delayed allograft function, and frequent organ discard. Furthermore, many potential DCD donors fail to progress to asystole in a manner that would enable safe organ transplantation and no organs are recovered. DCD protocols are based upon the principle that the donor must be declared dead prior to organ recovery. A new protocol is proposed whereby after a donor family agrees to withdrawal of life-sustaining treatments, (...) premortem nephrectomy is performed in advance of end-of-life management. Since nephrectomy should not cause the donor's death, this approach satisfies the dead donor rule. The donor family's wishes are best met by organ donation, successful outcomes for the recipients, and a dignified death for the deceased. This proposal improves the likelihood of achieving these objectives. (shrink)

Several authors have argued that causes differ in the degree to which they are ‘specific’ to their effects. Woodward has used this idea to enrich his influential interventionist theory of causal explanation. Here we propose a way to measure causal specificity using tools from information theory. We show that the specificity of a causal variable is not well-defined without a probability distribution over the states of that variable. We demonstrate the tractability and interest of our proposed measure by measuring the (...) specificity of coding DNA and other factors in a simple model of the production of mRNA. (shrink)

The Fraenkel-Mostowski method has been widely used to prove independence results among weak versions of the axiom of choice. In this paper it is shown that certain statements cannot be proved by this method. More specifically it is shown that in all Fraenkel-Mostowski models the following hold: 1. The axiom of choice for sets of finite sets implies the axiom of choice for sets of well-orderable sets. 2. The Boolean prime ideal theorem implies a weakened form of Sikorski's theorem.

Most commentators supported the thesis of the target article, though there were also those who were less fully persuaded. I will begin with a response to the most critical commentaries. First, I will justify an evolutionary perspective that includes group organization and nongenetic inheritance. Next, I will discuss the concept of emergence. Following that, I will transition to an exploration of ideas and concerns brought up by some of the more supportive commentators. This will include a discussion of different types (...) of groups; the psychology of group-level traits; the uses and limitations of an institutional perspective; the link between transmission, adaptation, and selection; current and future methodologies; and the variety of fields that may benefit from a group-level traits perspective. (shrink)

This article discusses a serious problem in the way ethics is taught in journalism and mass communication programs. The study is based, in part, on a survey of 359 students who have had varied exposure to university journalism programs. The survey consisted of 87 questions that provided information on the demographics of the participants as well as an opportunity to respond to a series of 25 hypothetical ethical dilemmas. Results indicate that although respondents found most of the hypothetical situations to (...) be ethics violations, they often did not recognize the seriousness of the violations and did not know what to do when faced with those violations. (shrink)

This book discusses ethical behavior through the genocidal stages of the Holocaust. Paul E. Wilson first looks at the antisemitism in Germany and Europe beginning in the decades preceding the Nazis reign of terror, and goes on to discuss the ethical decisions made in the initial stages that moved society toward genocide. The author maintains that the stages of genocide represent subtle changes that can be happening within a society in response to the moral choices made by actors. By (...) giving attention to the stages of genocide in the Holocaust, this book contributes to the overall understanding of how the Holocaust was possible, and encourages the moral community to join the watch for the development of genocide in the modern world. (shrink)

The Developmental Systems approach to evolution is defended against the alternative extended replicator approach of Sterelny, Smith and Dickison (1996). A precise definition is provided of the spatial and temporal boundaries of the life-cycle that DST claims is the unit of evolution. Pacé Sterelny et al., the extended replicator theory is not a bulwark against excessive holism. Everything which DST claims is replicated in evolution can be shown to be an extended replicator on Sterelny et al.s definition. Reasons are given (...) for scepticism about the heuristic value claimed for the extended replicator concept. For every competitive, individualistic insight the replicator theorist has a cooperative, systematic blindspot. (shrink)

Human experts are the source of knowledge required to develop computer systems that perform at an expert level. Human beings are not, however, able to reliably express what they know. As a result, experts often develop non-authentic accounts of their own expertise. These accounts, here termed reconstructed methods of reasoning, lead to computer systems that perform at a high level of proficiency but have the disadvantage that they often do not reflect the heuristics and processing constraints of a system user. (...) Reconstructed methods of reasoning are compared with authentic methods derived from the study of expert human behavior. Tests are proposed to establish the authenticity of reasoning methods and examples from medical diagnosis are used to illustrate how authentic methods of reasoning can be incorporated into an expert computer system. CiteULike Connotea Del.icio.us What's this? (shrink)

Doctors have been placed in an anomalous position by abortion laws which sanction the termination of a fetus while in a woman's womb, yet call it murder when a physician attempts to end the life of a fetus which has somehow survived such a procedure. This predicament, the doctors' dilemma, can be resolved by adopting a strategy which posits the right to ownership of one's own body for human beings. Such an approach will generate a consistent policy prescription, one that (...) sanctions the right of all pregnant women to abortions, yet grants the fetus, after it becomes viable as a potentially independent person, a right to its own body. The doctors' dilemma is surmounted, then, by requiring that abortions of viable fetuses be performed in a manner that will produce a live delivery. Hence, infanticide and termination of viable fetuses are proscribed. (shrink)

Zoos and aquariums have an enormous global reach and hence an ability to craft meaningful conservation action for threatened species, implement educational strategies to encourage human engagement, development and behavior change, and conduct scientific research to enhance the husbandry, roles and impacts of the living collection. The recreational role of the zoo is also vast- people enjoy visiting the zoo and this is often a shared experience amongst family and friends. Evaluating how the zoo influences this “captive audience” and extending (...) its reach to include a compassionate approach to animals and people can further enhance the mission, value, and relevance of their work. The modern zoo’s current aims—Conservation, Education, Research and Recreation—provide useful foundations for the activities that zoos conduct at a local and national level. However, to improve sustainability of their actions and outcomes, we feel that Wellbeing should become the fifth aim of the modern zoo for the future- both from an animal perspective and from a human perspective. This paper provides discussion and review of how Wellbeing is already a substantial part of what zoos work on as well as posing the idea of altering the Recreation aim of the zoo to one of Engagement, which potentially is more measurable and therefore can allow zoo researchers and managers further options for the collection of evidence on the local and global reach of their zoo’s aims. Education, Engagement, Conservation, Research and Wellbeing provide a more complete picture of the roles of the modern zoo for the animals, human visitors and workforce, and to society more widely. (shrink)