Four experiments are reported which investigated the types of truth tables that people associate with conditional sentences and the kinds of inferences that they will draw from them. The present studies differed from most previous ones in using different types of content in the conditionals, for example promises and warnings. It was found that the type of content had a strong and consistent effect on both truth tables and inferences. It is suggested that this is because in real life conditionals (...) make probabilistic assertions, and that the strength of the probabilistic link is determined by the situation in which the conditional occurs. The implications of these findings for current theories of reasoning are considered and it is concluded that none of them is entirely satisfactory. It is suggested that more linguistically based theories may prove more successful. (shrink)

Stanovich & West's claim that there are two coherent and conceptually distinct types of thinking, System 1 and System 2, is questioned. Some authors equate System 2 with intelligence whereas other do not; and some authors regard the two types of system as distinct while others regard them as lying on a continuum.

The aim of the present research was to develop a difficulty model for logical reasoning problems involving complex ordered arrays used in the Graduate Record Examination. The approach used involved breaking down the problems into their basic cognitive elements such as the complexity of the rules used, the number of mental models required to represent the problem, and question type. Weightings for these different elements were derived from two experimental studies and from the reasoning literature. Based on these weights, difficulty (...) models were developed which were then tested against new data. The models had excellent predictive validity and showed the relative influence of rule based factors and factors relating to the number of underlying models. Different difficulty models were needed for different question types, suggesting that people used a variety of approaches and, at a wider level, that both mental models and mental rules may be used in reasoning. (shrink)

(1994). Inductive reasoning, deductive reasoning and mental models. International Studies in the Philosophy of Science: Vol. 8, No. 1, pp. 65-67. doi: 10.1080/02698599408573483.

The notion of ecological rationality, although plausible, does not readily lead to testable predictions. This is illustrated with respect to heuristics in syllogistic reasoning. Several possible heuristics have been proposed but ecological rationality does not appear to offer a sensible rationale for choosing between these.

Two studies are reported which demonstrate that analytic responding on everyday reasoning problems can be increased and bias eliminated after training on the law of large numbers. Critical thinking problems involving belief-consistent, neutral, and inconsistent conclusions were presented. Belief bias was eliminated when a written justification of argument strength was elicited. However, belief-based responding was still evident when evaluations of the arguments were elicited using rating scales. This finding demonstrates a dissociation between analytic and belief-based responding as a function of (...) response format. In Experiment 2 an instructional condition designed to foster decontextualised reasoning was included but was ineffective in reducing the degree to which judgements were biased by beliefs. It was concluded that training which makes available the analytic strategies necessary to evaluate a problem has the potential to facilitate performance only if the requested response triggers conscious deliberation of the evidence. (shrink)

Many researchers have suggested that premise interpretation errors can account, at least in part, for errors on categorical syllogisms. However, although it is possible to show that people make such errors in simple inference tasks, the evidence for them is far less clear when actual syllogisms are administered. Part of the problem is due to the lack of clear predictions for the solutions that would be expected when using modified quantifiers, assuming that correct inferences are made from them. This paper (...) presents the expected solutions for Gricean, reversible, and reversible Gricean interpretations, and evaluates these using three datasets (two currently available, and one new). The evidence supported the adoption of reversible and reversible Gricean interpretations, but not Gricean interpretations on their own. These results suggest that the categorical syllogism task tends to induce different quantifier interpretations from those identified in simple inference tasks. (shrink)

Girotto and Legrenzi's 1993 facilitation effect for their SARS version of Wason s THOG problem a disjunctive reasoning task was examined. The effect was not replicated when the standard THOG problem instructions were used in Experiments 1 and 2. However, in Experiment 3 when Girotto and Legrenzi's precise instructions were used, facilitation was observed. Experiment 4 further investigated the role of the type of instructions in the observed facilitation. The results suggest that such facilitation may result from attentional factors rather (...) than the use of a combinatorial analysis in the problem. (shrink)

Two studies are reported which demonstrate that analytic responding on everyday reasoning problems can be increased and bias eliminated after training on the law of large numbers. Critical thinking problems involving belief-consistent, neutral, and inconsistent conclusions were presented. Belief bias was eliminated when a written justification of argument strength was elicited. However, belief-based responding was still evident when evaluations of the arguments were elicited using rating scales. This finding demonstrates a dissociation between analytic and belief-based responding as a function of (...) response format. In Experiment 2 an instructional condition designed to foster decontextualised reasoning was included but was ineffective in reducing the degree to which judgements were biased by beliefs. It was concluded that training which makes available the analytic strategies necessary to evaluate a problem has the potential to facilitate performance only if the requested response triggers conscious deliberation of the evidence. (shrink)

Collecting a wide range of contemporary and classical theological essays dealing with medical ethics, this volume is the finest resource available for engaging ...

Bergson's 1896 theory of perception/memory assumed a framework anticipating the quantum revolution in physics, the still unrealized implications of this framework contributing to the large neglect of Bergson today. The basics of his model are explored, including the physical concepts he advanced before the crisis in classical physics, his concept of perception as ‘virtual action’ with its relativistic implications, and his unique explication of the subject/object relationship. All form the basis for his solution to the ‘hard’ problem. The relation between (...) Bergson and Gibson as natural complements is also explored, with Bergson providing the framework that explicates Gibson's concept of direct perception, with Gibson's resonance model as a precursor to dynamic systems models of the brain and his reliance on invariance laws defining perceived events providing more detail for the mechanisms Bergson only envisioned from afar, and with Bergson providing the basis for an otherwise missing Gibsonian model of direct memory. (shrink)

The Limits of Influence is a detailed examination and defense of the evidence for largescale-psychokinesis . It examines the reasons why experimental evidence has not, and perhaps cannot, convince most skeptics that PK is genuine, and it considers why traditional experimental procedures are important to reveal interesting facts about the phenomena.

For over thirty years, Stephen Braude has studied the paranormal in everyday life, from extrasensory perception and psychokinesis to mediumship and materialization. _The Gold Leaf Lady and Other Parapsychological Investigations_ is a highly readable and often amusing account of his most memorable encounters with such phenomena. Here Braude recounts in fascinating detail five particular cases—some that challenge our most fundamental scientific beliefs and others that expose our own credulousness. Braude begins with a south Florida woman who can make thin (...) gold-colored foil appear spontaneously on her skin. He then travels to New York and California to test psychokinetic superstars—and frauds—like Joe Nuzum, who claim to move objects using only their minds. Along the way, Braude also investigates the startling allegations of K.R., a policeman in Annapolis who believes he can transfer images from photographs onto other objects—including his own body—and Ted Serios, a deceased Chicago elevator operator who could make a variety of different images appear on Polaroid film. Ultimately, Braude considers his wife’s surprisingly fruitful experiments with astrology, which she has used to guide professional soccer teams to the top of their leagues, as well as his own personal experiences with synchronicity—a phenomenon, he argues, that may need to be explained in terms of a refined, extensive, and dramatic form of psychokinesis. Heady, provocative, and brimming with eye-opening details and suggestions, _The Gold Leaf Lady and Other Parapsychological Investigations_ will intrigue both adherents and detractors of its controversial subject matter alike. (shrink)

Evolutionary theory has yet to offer a detailed model of the complex transitions from a living system of one design to another of more advanced, or simply different, design. Hidden within the writings of evolution's expositors is an implicit appeal to AI-like processes operating within the "cosmic machine" that has hitherto been evolving the plethora of functional living systems we observe. In these writings, there is disturbingly little understanding of the deep problems involved, resting as they do in the very (...) heart of AI. The end-state requirements for a system, device, or "machine" with intelligence capable of design are examined. The representational power must be sufficient to support analogical thought, an operation demanding transformations of events in imagery, in turn a function of perception, both dependent on a non-differentiable flow of time. The operational dynamics of the device must inherit this fundamental property of the dynamically transforming matter-field. Whether the evolutionary mechanisms or algorithmics thus far envisioned by biology or AI are coordinate with such requirements is left seriously in doubt. (shrink)

A review of Stephen E. Palmer´s and Arthur P. Shimamura´s (eds.) Aesthetic Science (New York: Oxford University Press, 2012, xii + 408 pp. ISBN 978-0-19-973214-2).

What is art's relationship to play? Those interested in this question tend to look to modern philosophy for answers, but, as this book shows, the question was already debated in antiquity by luminaries like Plato and Aristotle. Over the course of eight chapters, this book contextualizes those debates, and demonstrates their significance for theoretical problems today. Topics include the ancient child psychology at the root of the ancient Greek word for 'play', the numerous toys that have survived from antiquity, and (...) the meaning of play's conceptual opposite, the 'serious'. What emerges is a concept of play markedly different from the one we have inherited from modernity. Play is not a certain set of activities which unleashes a certain feeling of pleasure; it is rather a certain feeling of pleasure that unleashes the activities we think of as 'play'. As such, it offers a new set of theoretical challenges. (shrink)

Skepticism has always been a part of the history of Western philosophy. If one were to look at current works focusing on the history of skepticism in philosophy, however, one would get the impression that skepticism disappeared from the philosophical landscape after the work of Sextus Empiricus, only to reappear with the methodological skepticism of Descartes. Yet, did skepticism, which had thus been so prevalent in the ancient period, disappear so completely during the middle Ages? The resounding answer that this (...) dissertation proposes to give to this question is no. To that end, the main focus will be on Nicolaus of Autrecourt, a figure in the waning High Middle Ages who revived skepticism within a peculiarly Christian context. In the first three chapters of the dissertation, the skepticism of Nicolaus of Autrecourt will be studied. Starting in the first chapter with a study of Nicolaus's life and the skeptical elements of his correspondence, the second chapter will continue to look for these same skeptical elements in his Exigit ordo, while the third chapter will look for possible influences on Nicolaus's skepticism. The fourth and fifth chapter will present views similar to Nicolaus's in the works of the Muslim thinker al-Ghazali and the more well-known David Hume concerning the skepticism of causal necessity. In the sixth and final chapter, a major difference between the doctrines of Nicolaus and al-Ghazali on the one hand and Hume on the other concerning the issue of miracles will be examined. From this point, a simplified genealogy of skepticism shall be offered, and it will be contended that the skepticisms of Nicolaus and al-Ghazali deserve a place in that genealogy. By allowing Nicolaus's and al-Ghazali's type of skepticism into this genealogy, the main conclusion shall be that skepticism is in fact a double-edged sword that can be used against religion by attempting to destroy the ability of reason to come to any definitive conclusions about God or against atheistic philosophy in leaving room for faith in the omnipotence of God. (shrink)

This work was the first sustained philosophical study of psychic phenomena to follow C.D. Broad's LECTURES ON PSYCHICAL RESEARCH, written nearly twenty years ...

The Limits of Influence is a detailed examination and defense of the evidence for largescale-psychokinesis. It examines the reasons why experimental evidence has not, and perhaps cannot, convince most skeptics that PK is genuine, and it considers why traditional experimental procedures are important to reveal interesting facts about the phenomena.

Crimes of Reason brings together expanded and updated versions of some of Braude’s best previously published essays, along with new essays written specifically for this book.

The relations among consciousness, brain, behavior, and scientific explanation are explored in the domain of color perception. Current scientific knowledge about color similarity, color composition, dimensional structure, unique colors, and color categories is used to assess Locke.

This article explores the role of weakness of will in the Indian Buddhist tradition, and in particular within Śāntideva’s Introduction to the Practice of Awakening. In agreement with Jay Garfield, I argue that there are important differences between Aristotle’s account of akrasia and Buddhist moral psychology. Nevertheless, taking a more expanded conception of weakness of will, as is frequently done in contemporary work, allows us to draw significant connections with the pluralistic account of psychological conflict found in Buddhist texts. I (...) demonstrate this by showing how Amélie Rorty’s expanded treatment of akrasia as including emotional response and perceptual classification allows us to recognize that one of the purposes of many of Śāntideva’s meditations is to treat various forms of akratic response. (shrink)

This article explores the defense Indian Buddhist texts make in support of their conceptions of lives that are good for an individual. This defense occurs, largely, through their analysis of ordinary experience as being saturated by subtle forms of suffering . I begin by explicating the most influential of the Buddhist taxonomies of suffering: the threefold division into explicit suffering , the suffering of change , and conditioned suffering . Next, I sketch the three theories of welfare that have been (...) most influential in contemporary ethical theory. I then argue that Buddhist texts underdetermine which of these theories would have been accepted by ancient Indian Buddhists. Nevertheless, Buddhist ideas about suffering narrow the shape any acceptable theory of welfare may take. In my conclusion, I argue that this narrowing process itself is enough to reconstruct a philosophical defense of the forms of life endorsed in Buddhist texts. (shrink)

Why are people interested in money? Specifically, what could be the biological basis for the extraordinary incentive and reinforcing power of money, which seems to be unique to the human species? We identify two ways in which a commodity which is of no biological significance in itself can become a strong motivator. The first is if it is used as a tool, and by a metaphorical extension this is often applied to money: it is used instrumentally, in order to obtain (...) biologically relevant incentives. Second, substances can be strong motivators because they imitate the action of natural incentives but do not produce the fitness gains for which those incentives are instinctively sought. The classic examples of this process are psychoactive drugs, but we argue that the drug concept can also be extended metaphorically to provide an account of money motivation. From a review of theoretical and empirical literature about money, we conclude that (i) there are a number of phenomena that cannot be accounted for by a pure Tool Theory of money motivation; (ii) supplementing Tool Theory with a Drug Theory enables the anomalous phenomena to be explained; and (iii) the human instincts that, according to a Drug Theory, money parasitizes include trading (derived from reciprocal altruism) and object play. (Published Online April 5 2006) Key Words: economic behaviour; evolutionary psychology; giving; incentive; money; motivation; play; reciprocal altruism. (shrink)

This paper reconstructs an Indian Buddhist response to the overdemandingness objection, the claim that a moral theory asks too much of its adherents. In the first section, I explain the objection and argue that some Mahāyāna Buddhists, including Śāntideva, face it. In the second section, I survey some possible ways of responding to the objection as a way of situating the Buddhist response alongside contemporary work. In the final section, I draw upon writing by Vasubandhu and Śāntideva in reconstructing a (...) Mahāyāna response to the objection. An essential component of this response is the psychological transformation that the bodhisattva achieves as a result of realizing the nonexistence of the self. This allows him to radically identify his well-being with the well-being of others, thereby lessening the tension between self and others upon which the overdemandingness objection usually depends. Emphasizing the attention Mahāyāna authors pay to lessening moral demandingness in this way increases our appreciation of the philosophical sophistication of their moral thought and highlights an important strategy for responding to the overdemandingness objection that has been underdeveloped in contemporary work. (shrink)