It is widely supposed that every entity falls into one of twocategories: Some are concrete; the rest abstract. The distinction issupposed to be of fundamental significance for metaphysics andepistemology. This article surveys a number of recent attempts to sayhow it should be drawn.

Worries about mental causation are prominent in contemporary discussions of the mind and human agency. Originally, the problem of mental causation was that of understanding how a mental substance (thought to be immaterial) could interact with a material substance, a body. Most philosophers nowadays repudiate immaterial minds, but the problem of mental causation has not gone away. Instead, focus has shifted to mental properties. How could mental properties be causally relevant to bodily behavior? How could something mental qua mental cause (...) what it does? After looking at the traditional Problem of Interaction, we survey various versions of the property-based problem and look at proposed solutions to them. (shrink)

Woodward's long awaited book is an attempt to construct a comprehensive account of causation explanation that applies to a wide variety of causal and explanatory claims in different areas of science and everyday life. The book engages some of the relevant literature from other disciplines, as Woodward weaves together examples, counterexamples, criticisms, defenses, objections, and replies into a convincing defense of the core of his theory, which is that we can analyze causation by appeal to the notion of manipulation.

Are there nonexistent objects, i.e., objects that do not exist? Some examples often cited are: Zeus, Pegasus, Sherlock Holmes, Vulcan (the hypothetical planet postulated by the 19th century astronomer Le Verrier), the perpetual motion machine, the golden mountain, the fountain of youth, the round square, etc. Some important philosophers have thought that the very concept of a nonexistent object is contradictory (Hume) or logically ill-formed (Kant, Frege), while others (Leibniz, Meinong, the Russell of Principles of Mathematics) have embraced it wholeheartedly. (...) This entry is an examination of the many questions which arise in connection with the view that there are nonexistent objects. The following are particularly salient: What reasons are there (if any) for thinking that there are nonexistent objects? If there are nonexistent objects, then what kind of objects are they? How can they be characterized? Is it possible to provide a consistent theory of nonexistent objects? What is the explanatory force of a consistent theory of nonexistent objects (if such a thing is possible)? (shrink)

There has been much discussion recently about the scope and limits of purely symbolic models of the mind and about the proper role of connectionism in cognitive modeling. This paper describes the symbol grounding problem : How can the semantic interpretation of a formal symbol system be made intrinsic to the system, rather than just parasitic on the meanings in our heads? How can the meanings of the meaningless symbol tokens, manipulated solely on the basis of their shapes, be grounded (...) in anything but other meaningless symbols? The problem is analogous to trying to learn Chinese from a Chinese/Chinese dictionary alone. A candidate solution is sketched: Symbolic representations must be grounded bottom-up in nonsymbolic representations of two kinds: iconic representations, which are analogs of the proximal sensory projections of distal objects and events, and categorical representations, which are learned and innate feature-detectors that pick out the invariant features of object and event categories from their sensory projections. Elementary symbols are the names of these object and event categories, assigned on the basis of their categorical representations. Higher-order symbolic representations, grounded in these elementary symbols, consist of symbol strings describing category membership relations. Connectionism is one natural candidate for the mechanism that learns the invariant features underlying categorical representations, thereby connecting names to the proximal projections of the distal objects they stand for. In this way connectionism can be seen as a complementary component in a hybrid nonsymbolic/symbolic model of the mind, rather than a rival to purely symbolic modeling. Such a hybrid model would not have an autonomous symbolic module, however; the symbolic functions would emerge as an intrinsically dedicated symbol system as a consequence of the bottom-up grounding of categories ' names in their sensory representations. Symbol manipulation would be governed not just by the arbitrary shapes of the symbol tokens, but by the nonarbitrary shapes of the icons and category invariants in which they are grounded. (shrink)

This chapter summarizes research on free will. Progress has been made by discarding outmoded philosophical notions in favor of exploring how ordinary people understand and use the notion of free will. The concept of responsible autonomy captures many aspects of layperson concepts of free will, including acting on one's own (i.e., not driven by external forces), choosing, using reasons and personal values, conscious reflection, and knowing and accepting consequences and moral implications. Free will can thus be understood as form of (...) volition (action control) that evolved to enable people to live in cultural societies. Much work has shown that belief in free will (as opposed to disbelief) is associated with actions that are conducive to functioning well in culture, including helpfulness, restraint of aggression, learning via counterfactual analysis, thinking for oneself, effective job performance, and appropriate gratitude. Belief in free will increases in response to misdeeds by others, thus emphasizing the link to personal responsibility. Research on volition indicates that self-regulation, intelligent reasoning, decision making, and initiative all deplete a (common) limited energy source, akin to the folk notion of willpower and linked to the body's glucose supplies. Free will is thus not an absolute or constant property of persons but a variable, fluctuating capability—one that is nonetheless highly adaptive for individuals and society. -/- The notion that people have free will has been invoked in multiple contexts. Legally and morally, it explains why people can be held responsible for their actions. Theologically, it was used to explain why a supposedly kind and omniscient god would send most of the people he created to hell (Walker, 1964). Yet, for such an important concept, there remains wide-ranging disagreement and confusion over its existence and its nature. For example, philosophers still debate whether humans truly have free will and, if so, under what conditions human volition deserves to be considered free (Kane, 2011). In psychology, most theorists believe that humans engage in self-control, rational choice, planning, initiative, and related acts of volition. The debate is not whether these things occur but merely whether these should be called free will. -/- This chapter will provide an overview of recent psychology experiments concerned with free will. There are three main and quite distinct sets of problems, each with associated lines of research. The first is concerned with how people understand the idea of free will. The second concerns the causes and consequences of believing in free will. The third focuses on the actual volitional processes that guide human action. (shrink)

Written by one of the preeminent researchers in the field, this book provides a comprehensive exposition of modern analysis of causation. It shows how causality has grown from a nebulous concept into a mathematical theory with significant applications in the fields of statistics, artificial intelligence, economics, philosophy, cognitive science, and the health and social sciences. Judea Pearl presents and unifies the probabilistic, manipulative, counterfactual, and structural approaches to causation and devises simple mathematical tools for studying the relationships between causal connections (...) and statistical associations. Cited in more than 2,100 scientific publications, it continues to liberate scientists from the traditional molds of statistical thinking. In this revised edition, Judea Pearl elucidates thorny issues, answers readers' questions, and offers a panoramic view of recent advances in this field of research. Causality will be of interest to students and professionals in a wide variety of fields. Dr Judea Pearl has received the 2011 Rumelhart Prize for his leading research in Artificial Intelligence and systems from The Cognitive Science Society. (shrink)

"This reviewer had to be restrained from stopping people in the street to urge them to read it: They would learn something of the way science is done,...

The problem of free will arises because of the conflict between two inconsistent impulses, the experience of freedom and the conviction of determinism. Perhaps we can resolve these by examining neurobiological correlates of the experience of freedom. If free will is not to be an illusion, it must have a corresponding neurobiological reality. An explanation of this issue leads us to an account of rationality and the self, as well as how consciousness can move bodies at all. I explore two (...) hypotheses. On the first, freedom is a complete illusion. On the second, it is not an illusion, and there is a corresponding indeterminism at the neurobiological level. This can only occur if there is in fact a quantum mechanical element in the fundamental neurobiology of consciousness. (shrink)

In their review article on “Scientific Reduction” Van Riel and Van Gulick The Stanford encyclopedia of philosophy. Stanford University, Stanford, 2016) write,Saying that x reduces to y typically implies that x is nothing more thany or nothing over and abovey.The y to which an x reduces consists most often of x’s components. But virtually nothing can be reduced if to be “nothing more than” or “nothing over and above” its components means to have no properties other than those of its (...) components, individually or aggregated. An atom has properties other than those of its quarks and electrons. A protein, a biological cell, and a hurricane—not to mention such man-made entities as houses, mobile phones, and automobiles—all have properties over and above their components. The properties of most entities depend on both those of the entity’s components and on how those components are put together. One of the defining characteristics of what might be referred to as the creative disciplines—computer science, engineering, the creative arts, etc.—is a focus on understanding and using the effects of putting things together. They ask what new properties can be realized by putting things together in new ways. Using software as an example I explore software construction, and I ask what, if anything, one gains by thinking of it reductively.Reduction as nothing-more-than-ism tends to blind one to nature’s constructive aspects. I discuss nature’s tools for creating new phenomena, including negative interactive energy, means for creating and tapping stores of usable energy, autopoiesis, and biological evolution. (shrink)

This book, published in 2000, is a clear account of causation based firmly in contemporary science. Dowe discusses in a systematic way, a positive account of causation: the conserved quantities account of causal processes which he has been developing over the last ten years. The book describes causal processes and interactions in terms of conserved quantities: a causal process is the worldline of an object which possesses a conserved quantity, and a causal interaction involves the exchange of conserved quantities. Further, (...) things that are properly called cause and effect are appropriately connected by a set of causal processes and interactions. The distinction between cause and effect is explained in terms of a version of the fork theory: the direction of a certain kind of ordered pattern of events in the world. This particular version has the virtue that it allows for the possibility of backwards causation, and therefore time travel. (shrink)

Woodward's long awaited book is an attempt to construct a comprehensive account of causation explanation that applies to a wide variety of causal and explanatory claims in different areas of science and everyday life. The book engages some of the relevant literature from other disciplines, as Woodward weaves together examples, counterexamples, criticisms, defences, objections, and replies into a convincing defence of the core of his theory, which is that we can analyse causation by appeal to the notion of manipulation.