It appears that knappers intentionally produced symmetrical stones. Use of the dorsal pathways in knapping does not preclude shape perception, nor does it obviate use of ventral pathways in other tasks in Homo sapiens 400,000 years ago. Shape perception precedes production in present-day human infants, suggesting that symmetry perception was used by knappers of symmetrical stones.

How is consciousness possible? What biological purpose does it serve? And why do we value it so highly? In Soul Dust, the psychologist Nicholas Humphrey, a leading figure in consciousness research, proposes a startling new theory. Consciousness, he argues, is nothing less than a magical-mystery show that we stage for ourselves inside our own heads. This self-made show lights up the world for us and makes us feel special and transcendent. Thus consciousness paves the way for spirituality, and allows (...) us, as human beings, to reap the rewards, and anxieties, of living in what Humphrey calls the "soul niche." Tightly argued, intellectually gripping, and a joy to read, Soul Dust provides answers to the deepest questions. It shows how the problem of consciousness merges with questions that obsess us all--how life should be lived and the fear of death. Resting firmly on neuroscience and evolutionary theory, and drawing a wealth of insights from philosophy and literature, Soul Dust is an uncompromising yet life-affirming work--one that never loses sight of the majesty and wonder of consciousness. (shrink)

The theory presented here is a near neighbour of Humphrey's theory of sensations as actions. O'Regan & Noë have opened up remarkable new possibilities. But they have missed a trick by not making more of the distinction between sensation and perception; and some of their particular proposals for how we use our eyes to represent visual properties are not only implausible but would, if true, isolate vision from other sensory modalities and do little to explain the phenomenology of conscious (...) experience in general. (shrink)

We provide a comprehensive analysis of differences between socially responsible investment and conventional funds in terms of manager characteristics, performance and fund styles. We use holdings-based analysis to evaluate fund performance and style, which allows us to perform a more in-depth analysis than the extant literature. We find that SRI managers have longer tenure and are more likely to be a female. However, these differences do not result in any significant difference in the performance of SRI and conventional funds. Further, (...) it is possible to find an SRI fund of any style, although these funds are under-represented in value styles. (shrink)

Prior literature on socially responsible investment has contended that excluding “sin stocks” from a portfolio will reduce performance and increase risk. Further, incorporating stocks of firms with positive social responsibility scores will improve performance and reduce risk. We simulate portfolios designed to mimic typical equity mutual funds’ holdings and investigate these propositions. We remove the potentially confounding influences of differences in manager skill, transaction costs and fees, and conduct a clean experiment on the effect of positive and negative portfolio screening. (...) We find no difference in the return or risk of screened and unscreened portfolios. We conclude that a typical socially responsible fund will neither gain nor lose from screening its portfolio. (shrink)

There is growing regulatory pressure on firms worldwide to address the under-representation of women in senior positions. Regulators have taken a variety of approaches to the issue. We investigate a jurisdiction that has issued recommendations and disclosure requirements, rather than implementing quotas. Much of the rhetoric surrounding gender diversity centres on whether diversity has a financial impact. In this paper we take an aggregate (market-level) approach and compare the performance of portfolios of firms with gender diverse boards to those without. (...) We also investigate whether having multiple women on the board is linked to performance, and if there is a within-industry effect. Overall, we do not find evidence of an association between diversity and performance. We find some weak evidence of a negative correlation between having multiple women on the board and performance, but that in some industries diversity is positively correlated with performance. (shrink)

This paper reports an experiment which investigates a possible cognitive antecedent of event-splitting effects (ESEs) experimentally observed by Starmer and Sugden (1993) and Humphrey (1995) – the learning of absolute frequency of event category impacting on the learning of probability of event category – and reveals some evidence that it is responsible for observed ESEs. It is also suggested and empirically substantiated that stripped-down prospect theory will accurately predict ESEs in some decision making tasks, but will not perform well (...) in others. This contention, it is argued, is indicative of fundamental descriptive shortcomings in the economic conception of choice under uncertainty and may entail implications beyond the direct concerns of this paper. (shrink)

How does sign language compare with gesture, on the one hand, and spoken language on the other? Sign was once viewed as nothing more than a system of pictorial gestures without linguistic structure. More recently, researchers have argued that sign is no different from spoken language, with all of the same linguistic structures. The pendulum is currently swinging back toward the view that sign is gestural, or at least has gestural components. The goal of this review is to elucidate the (...) relationships among sign language, gesture, and spoken language. We do so by taking a close look not only at how sign has been studied over the past 50 years, but also at how the spontaneous gestures that accompany speech have been studied. We conclude that signers gesture just as speakers do. Both produce imagistic gestures along with more categorical signs or words. Because at present it is difficult to tell where sign stops and gesture begins, we suggest that sign should not be compared with speech alone but should be compared with speech-plus-gesture. Although it might be easier (and, in some cases, preferable) to blur the distinction between sign and gesture, we argue that distinguishing between sign (or speech) and gesture is essential to predict certain types of learning and allows us to understand the conditions under which gesture takes on properties of sign, and speech takes on properties of gesture. We end by calling for new technology that may help us better calibrate the borders between sign and gesture. (shrink)

The McCollough effect, an orientation-contingent color aftereffect, has been known for over 30 years and, like other aftereffects, has been taken as a means of probing the brain's operations psychophysically. In this paper, we review psychophysical, neuropsychological, and neuroimaging studies of the McCollough effect. Much of the evidence suggests that the McCollough effect depends on neural mechanisms that are located early in the cortical visual pathways, probably in V1. We also review evidence showing that the aftereffect can be induced without (...) conscious perception of the induction patterns. Based on these two lines of evidence, it is argued that our conscious visual experience of the world arises in the cortical visual system beyond V1. (shrink)

The 2015 Paris Agreement set a global warming limit of 2°C above preindustrial levels. Corporations play an important role in achieving this objective, and methods have recently been developed to map global climate targets to specific industries, and individual corporations within those industries. In this article, we assess whether Sustainability ratings capture corporate performance in meeting the 2°C target. We analyze nine rating schemes used by investors and three commonly used in academic studies. Most rating schemes do consider corporate greenhouse (...) gas emissions in their analysis, whereas only a minority scale emissions by factors that have the potential to allow benchmarking against science-based targets. None take the final step of mapping climate indicators against the 2°C target. Furthermore, we find a lack of consistency in the climate change ratings of the databases used in academic studies. These results are concerning in the context of being able to meet global climate change goals. (shrink)

This paper examines Honig’s use of Rancière in her book ‘Democracy and the Foreigner’. In seeking to clarify the benefits of ‘foreignness’ for democratic politics it raises the concern that Honig does not acknowledge the ways in which her own democratic cosmopolitanism may be more akin to Rancière’s police than politics. By challenging Honig’s assertion that democracy is usually read as a romance with the suggestion that it is more commonly read as a horror, I unpick the interstices of Honig’s (...) and Rancière’s work to separate foreignness from democratic cosmopolitanism. Instead, although I posit democratic cosmopolitanism’s potential as a police more conducive to politics I also suggest that the particular salience of Honig’s ‘foreigner’ figure is that it supplements Rancièrian politics, demonstrating a praxis of ‘looking anew’ at our ordinary social practices. By making these seem strange to us, we can discover a new critical perspective from which to question and subvert, thereby furthering the potential of Rancièrian democratic politics. (shrink)

Dreaming can provide a marvelous opportunity for the “playful” exploration of dramatic events. But the chance to learn to deal with danger is only a small part of it. More important is the chance to discover what it is like to be the subject of strange but humanly significant mental states. [Revonsuo].

Despite a long period of neglect, research on emotion in organizational behavior has developed into a major field over the past 15 years, and is now seen to be part of an affective revolution in the organization sciences. In this article, we review current research on emotion in the organizational behavior field based on five levels of analysis: within person, between persons, dyadic interactions, leadership and teams, and organization-wide. Specific topics we cover include affective events theory, state and trait affect (...) and mood, emotional intelligence, emotional labor, emotional contagion, emotions and leadership, and building a healthy emotional climate. We conclude with suggestions for future research. (shrink)

Anthropomorphism is a phenomenon that describes the human tendency to see human-like shapes in the environment. It has considerable consequences for people’s choices and beliefs. With the increased presence of robots, it is important to investigate the optimal design for this tech- nology. In this paper we discuss the potential benefits and challenges of building anthropomorphic robots, from both a philosophical perspective and from the viewpoint of empir- ical research in the fields of human–robot interaction and social psychology. We believe (...) that this broad investigation of anthropomorphism will not only help us to understand the phenomenon better, but can also indicate solutions for facil- itating the integration of human-like machines in the real world. (shrink)

Human beings are not only the most sociable animals on Earth, but also the only animals that have to ponder the separateness that comes with having a conscious self. The philosophical problem of ‘other minds’ nags away at people’s sense of who—and why—they are. But the privacy of consciousness has an evolutionary history—and maybe even an evolutionary function. While recognizing the importance to humans of mind-reading and psychic transparency, we should consider the consequences and possible benefits of being—ultimately—psychically opaque.

Over-time variability characterizes not only individual-level emotions, but also group-level emotions, those that occur when people identify with social groups and appraise events in terms of their implications for those groups. We discuss theory and research regarding the role of emotions in intergroup contexts, focusing on their dynamic nature. We then describe new insights into the causes and consequences of emotional dynamics that flow from conceptualizing emotions as based in group membership, and conclude with research recommendations.

In English we use the word “invention” in two ways. First, to mean a new device or process developed by experimentation, and designed to fulfill a practical goal. Second, to mean a mental fabrication, especially a falsehood, designed to please or persuade. In this paper I argue that human consciousness is an invention in both respects. First, it is a cognitive faculty, evolved by natural selection, designed to help us make sense of ourselves and our surroundings. But then, second, it (...) is a fantasy, conjured up by the brain, designed to change the value we place on our existence. (shrink)

Two major functions of the visual system are discussed and contrasted. One function of vision is the creation of an internal model or percept of the external world. Most research in object perception has concentrated on this aspect of vision. Vision also guides the control of object-directed action. In the latter case, vision directs our actions with respect to the world by transforming visual inputs into appropriate motor outputs. We argue that separate, but interactive, visual systems have evolved for the (...) perception of objects on the one hand and the control of actions directed at those objects on the other. This 'duplex' approach to high-level vision suggests that Marrian or 'reconstructive' approaches and Gibsonian or 'purposive-animate-behaviorist' approaches need not be seen as mutually exclusive, but rather as complementary in their emphases on different aspects of visual function. (shrink)

According to the Perceptual Symbols Theory of cognition (), modality‐specific simulations underlie the representation of concepts. A strong prediction of this view is that perceptual processing affects conceptual processing. In this study, participants performed a perceptual detection task and a conceptual property‐verification task in alternation. Responses on the property‐verification task were slower for those trials that were preceded by a perceptual trial in a different modality than for those that were preceded by a perceptual trial in the same modality. This (...) finding of a modality‐switch effect across perceptual processing and conceptual processing supports the hypothesis that perceptual and conceptual representations are partially based on the same systems. (shrink)

This book examines the relationship between environmental and democratic thought and the apparent compatibility of ecology and democracy. Although environmental politics is quite rightly seen as a progressive force, it has also featured a strand of extreme right "eco-authoritarianism" and its proponents have sometimes developed controversial positions on such issues as population policy. There have also been a number of situations where radical environmental activists have broken the laws of democratic societies in pursuit of ecological objectives and the book examines (...) this in a number of case studies on biotechnology, genetic engineering and biodiversity. This is a significant contribution to the literature on environmental politics, ecological thought and democracy. (shrink)

A common complaint against Kripke’s Wittgenstein on Rules and Private Language is that whereas the aim of “the real” Wittgenstein’s private language argument is to establish the impossibility of a necessarily private language, the communitarian account of meaning proposed by Kripke’s Wittgenstein (KW), if successful, would establish the impossibility of a contingently private language. I show that this common complaint is based on a failure of Kripke’s critics (a failure that is justified, in part, by Kripke’s text) to recognize and (...) understand his distinction between a “physically isolated” individual (PII) and an individual “considered in isolation” (ICl) . It is only an ICI for whom rule following and language are rendered impossible by KW. l then show that an lel speaks a necessarily private language. Thus, KW’s private language argument gives us, at best, the same story about the impossibility of private language as pre-Kripke accounts of Wittgenstein’s private language argument. (shrink)

We report the results of an experimental test of whether preaching the normative appeal of the sure-thing principle leads decision-makers to make choices that satisfy it. We use Allais-type decision problems to observe the incentive-compatible choices of 147 subjects, which either violate the sure-thing principle or adhere to it. Subjects are presented with normative arguments that support the counterfactual behaviour and then repeat their decisions. We observe violations of the sure-thing principle are robust to its normative justification. This result replicates (...) a famous small-sample observation using hypothetical tasks that was published by Paul Slovic and Amos Tversky almost half a century ago. We argue that this finding is as relevant now as it was then and that their design can be usefully applied to address contemporary issues in behavioural economics. (shrink)

The ancients, Friedrich Nietzsche notes, held Homer's objective art and Archilochus's subjective art in equally high esteem. However, if a work of art must be "objective," how are we to understand the subjective artist, who, like Archilochus, produces art from his own subjective experience? Guided by a clue from Schiller's May 18, 1796 letter to Goethe, Nietzsche employs Schopenhauer's theory of music in his consideration of the subjective artist. Turning to Paul Ricoeur's distinction between image as copy and image as (...) fiction, I argue, will assist us in understanding how Nietzsche resolves the problem of the subjective artist. (shrink)

This article is an offshoot of a research project on lesbian and gay self-organization in the UK's public sector union UNISON. The site upon which lesbians and gay men ‘work together’ is a complex and contradictory one, located at the juncture of several pathways – women's and men's movements, gendered politics and sexual politics, purist ghettos and queer rainbows. The UNISON group furnishes an ideal site for a case-study of sexual and gendered dynamics in lesbian-and-gay politics by dint of institutional (...) arrangements whereby separate spaces for lesbians and gay men respectively encourage reflexivity in working through these hyphens. While reflections from the lesbian feminist mirror have been active ingredients in the ongoing resocialization of gay men, it is argued that reflections from a gay male mirror will also be necessary if we are to nurture greater wisdom and justice in gender relations. Since the lesbian and gay group co-exists with other self-organized groups for women, black people and disabled people within a broader pro-socialist movement, the potential for working across other sets of differences is also noteworthy. Nevertheless, it can be demonstrated that a sustained coalition between lesbians and gay men is not sufficient in bringing about coalitions with other oppressed minorities or majorities, and may even be at loggerheads with them. (shrink)

In his article “Deep Ecology and the Irrelevance of Morality,” Eric H. Reitan contends that, contrary to the disavowals of Fox and Naess, the “ecosophy T” concept of “Self-realization” constitutes a precondition of morality according to a “robust” Kantian moral framework. I suggest that there is a significant problem involved in rendering Self-realization compatible with a Kantian moral framework. This problem of ontological priority demonstrates that Naess and Fox are in fact correct in their assertion that Self-realization is a nonmoral (...) phenomenon. (shrink)

Violations of expected utility theory are sometimes attributed to imprecise preferences interacting with a lack of learning opportunity in the experimental laboratory. This paper reports an experimental test of whether a learning opportunity which engenders accurate probability assessments, by enhancing understanding of the meaning of stated probability information, causes anomalous behaviour to diminish. The data show that whilst in some cases expected utility maximising behaviour increases with the learning opportunity, so too do systematic violations. Therefore, there should be no presumption (...) that anomalous behaviour under risk is transient and that discovered preferences will be appropriately described by expected utility theory. (shrink)