Philosophers
Mortimer Adler Rogers Albritton Alexander of Aphrodisias Samuel Alexander William Alston Anaximander G.E.M.Anscombe Anselm Louise Antony Thomas Aquinas Aristotle David Armstrong Harald Atmanspacher Robert Audi Augustine J.L.Austin A.J.Ayer Alexander Bain Mark Balaguer Jeffrey Barrett William Barrett William Belsham Henri Bergson George Berkeley Isaiah Berlin Richard J. Bernstein Bernard Berofsky Robert Bishop Max Black Susanne Bobzien Emil du Bois-Reymond Hilary Bok Laurence BonJour George Boole Émile Boutroux Daniel Boyd F.H.Bradley C.D.Broad Michael Burke Lawrence Cahoone C.A.Campbell Joseph Keim Campbell Rudolf Carnap Carneades Nancy Cartwright Gregg Caruso Ernst Cassirer David Chalmers Roderick Chisholm Chrysippus Cicero Tom Clark Randolph Clarke Samuel Clarke Anthony Collins Antonella Corradini Diodorus Cronus Jonathan Dancy Donald Davidson Mario De Caro Democritus Daniel Dennett Jacques Derrida René Descartes Richard Double Fred Dretske John Dupré John Earman Laura Waddell Ekstrom Epictetus Epicurus Austin Farrer Herbert Feigl Arthur Fine John Martin Fischer Frederic Fitch Owen Flanagan Luciano Floridi Philippa Foot Alfred Fouilleé Harry Frankfurt Richard L. Franklin Bas van Fraassen Michael Frede Gottlob Frege Peter Geach Edmund Gettier Carl Ginet Alvin Goldman Gorgias Nicholas St. John Green H.Paul Grice Ian Hacking Ishtiyaque Haji Stuart Hampshire W.F.R.Hardie Sam Harris William Hasker R.M.Hare Georg W.F. Hegel Martin Heidegger Heraclitus R.E.Hobart Thomas Hobbes David Hodgson Shadsworth Hodgson Baron d'Holbach Ted Honderich Pamela Huby David Hume Ferenc Huoranszki Frank Jackson William James Lord Kames Robert Kane Immanuel Kant Tomis Kapitan Walter Kaufmann Jaegwon Kim William King Hilary Kornblith Christine Korsgaard Saul Kripke Thomas Kuhn Andrea Lavazza Christoph Lehner Keith Lehrer Gottfried Leibniz Jules Lequyer Leucippus Michael Levin Joseph Levine George Henry Lewes C.I.Lewis David Lewis Peter Lipton C. Lloyd Morgan John Locke Michael Lockwood Arthur O. Lovejoy E. Jonathan Lowe John R. Lucas Lucretius Alasdair MacIntyre Ruth Barcan Marcus Tim Maudlin James Martineau Nicholas Maxwell Storrs McCall Hugh McCann Colin McGinn Michael McKenna Brian McLaughlin John McTaggart Paul E. Meehl Uwe Meixner Alfred Mele Trenton Merricks John Stuart Mill Dickinson Miller G.E.Moore Thomas Nagel Otto Neurath Friedrich Nietzsche John Norton P.H.Nowell-Smith Robert Nozick William of Ockham Timothy O'Connor Parmenides David F. Pears Charles Sanders Peirce Derk Pereboom Steven Pinker U.T.Place Plato Karl Popper Porphyry Huw Price H.A.Prichard Protagoras Hilary Putnam Willard van Orman Quine Frank Ramsey Ayn Rand Michael Rea Thomas Reid Charles Renouvier Nicholas Rescher C.W.Rietdijk Richard Rorty Josiah Royce Bertrand Russell Paul Russell Gilbert Ryle Jean-Paul Sartre Kenneth Sayre T.M.Scanlon Moritz Schlick John Duns Scotus Arthur Schopenhauer John Searle Wilfrid Sellars David Shiang Alan Sidelle Ted Sider Henry Sidgwick Walter Sinnott-Armstrong Peter Slezak J.J.C.Smart Saul Smilansky Michael Smith Baruch Spinoza L. Susan Stebbing Isabelle Stengers George F. Stout Galen Strawson Peter Strawson Eleonore Stump Francisco Suárez Richard Taylor Kevin Timpe Mark Twain Peter Unger Peter van Inwagen Manuel Vargas John Venn Kadri Vihvelin Voltaire G.H. von Wright David Foster Wallace R. Jay Wallace W.G.Ward Ted Warfield Roy Weatherford C.F. von Weizsäcker William Whewell Alfred North Whitehead David Widerker David Wiggins Bernard Williams Timothy Williamson Ludwig Wittgenstein Susan Wolf Scientists David Albert Michael Arbib Walter Baade Bernard Baars Jeffrey Bada Leslie Ballentine Marcello Barbieri Gregory Bateson Horace Barlow John S. Bell Mara Beller Charles Bennett Ludwig von Bertalanffy Susan Blackmore Margaret Boden David Bohm Niels Bohr Ludwig Boltzmann Emile Borel Max Born Satyendra Nath Bose Walther Bothe Jean Bricmont Hans Briegel Leon Brillouin Stephen Brush Henry Thomas Buckle S. H. Burbury Melvin Calvin Donald Campbell Sadi Carnot Anthony Cashmore Eric Chaisson Gregory Chaitin Jean-Pierre Changeux Rudolf Clausius Arthur Holly Compton John Conway Jerry Coyne John Cramer Francis Crick E. P. Culverwell Antonio Damasio Olivier Darrigol Charles Darwin Richard Dawkins Terrence Deacon Lüder Deecke Richard Dedekind Louis de Broglie Stanislas Dehaene Max Delbrück Abraham de Moivre Bernard d'Espagnat Paul Dirac Hans Driesch John Eccles Arthur Stanley Eddington Gerald Edelman Paul Ehrenfest Manfred Eigen Albert Einstein George F. R. Ellis Hugh Everett, III Franz Exner Richard Feynman R. A. Fisher David Foster Joseph Fourier Philipp Frank Steven Frautschi Edward Fredkin Augustin-Jean Fresnel Benjamin Gal-Or Howard Gardner Lila Gatlin Michael Gazzaniga Nicholas Georgescu-Roegen GianCarlo Ghirardi J. Willard Gibbs James J. Gibson Nicolas Gisin Paul Glimcher Thomas Gold A. O. Gomes Brian Goodwin Joshua Greene Dirk ter Haar Jacques Hadamard Mark Hadley Patrick Haggard J. B. S. Haldane Stuart Hameroff Augustin Hamon Sam Harris Ralph Hartley Hyman Hartman Jeff Hawkins John-Dylan Haynes Donald Hebb Martin Heisenberg Werner Heisenberg John Herschel Basil Hiley Art Hobson Jesper Hoffmeyer Don Howard John H. Jackson William Stanley Jevons Roman Jakobson E. T. Jaynes Pascual Jordan Eric Kandel Ruth E. Kastner Stuart Kauffman Martin J. Klein William R. Klemm Christof Koch Simon Kochen Hans Kornhuber Stephen Kosslyn Daniel Koshland Ladislav Kovàč Leopold Kronecker Rolf Landauer Alfred Landé Pierre-Simon Laplace Karl Lashley David Layzer Joseph LeDoux Gerald Lettvin Gilbert Lewis Benjamin Libet David Lindley Seth Lloyd Werner Loewenstein Hendrik Lorentz Josef Loschmidt Alfred Lotka Ernst Mach Donald MacKay Henry Margenau Owen Maroney David Marr Humberto Maturana James Clerk Maxwell Ernst Mayr John McCarthy Warren McCulloch N. David Mermin George Miller Stanley Miller Ulrich Mohrhoff Jacques Monod Vernon Mountcastle Emmy Noether Donald Norman Alexander Oparin Abraham Pais Howard Pattee Wolfgang Pauli Massimo Pauri Wilder Penfield Roger Penrose Steven Pinker Colin Pittendrigh Walter Pitts Max Planck Susan Pockett Henri Poincaré Daniel Pollen Ilya Prigogine Hans Primas Zenon Pylyshyn Henry Quastler Adolphe Quételet Pasco Rakic Nicolas Rashevsky Lord Rayleigh Frederick Reif Jürgen Renn Giacomo Rizzolati A.A. Roback Emil Roduner Juan Roederer Jerome Rothstein David Ruelle David Rumelhart Robert Sapolsky Tilman Sauer Ferdinand de Saussure Jürgen Schmidhuber Erwin Schrödinger Aaron Schurger Sebastian Seung Thomas Sebeok Franco Selleri Claude Shannon Charles Sherrington Abner Shimony Herbert Simon Dean Keith Simonton Edmund Sinnott B. F. Skinner Lee Smolin Ray Solomonoff Roger Sperry John Stachel Henry Stapp Tom Stonier Antoine Suarez Leo Szilard Max Tegmark Teilhard de Chardin Libb Thims William Thomson (Kelvin) Richard Tolman Giulio Tononi Peter Tse Alan Turing C. S. Unnikrishnan Francisco Varela Vlatko Vedral Vladimir Vernadsky Mikhail Volkenstein Heinz von Foerster Richard von Mises John von Neumann Jakob von Uexküll C. H. Waddington John B. Watson Daniel Wegner Steven Weinberg Paul A. Weiss Herman Weyl John Wheeler Jeffrey Wicken Wilhelm Wien Norbert Wiener Eugene Wigner E. O. Wilson Günther Witzany Stephen Wolfram H. Dieter Zeh Semir Zeki Ernst Zermelo Wojciech Zurek Konrad Zuse Fritz Zwicky Presentations Biosemiotics Free Will Mental Causation James Symposium |
Margaret Boden
Margaret Boden's 2006 two-volume Mind As Machine is an extraordinary history of cognitive science, a field, she says, that
would be better defined as the study of "mind as machine".Boden documents the transition in psychology from the behaviorism of B. F. Skinner (in which the mind was treated as a "black box" or a "blank slate" on which environmental stimuli make their impressions - behaviors being the mechanical result of some responses to stimuli being reinforced) to the new field of cognitive science in the 1960's. Cognitive scientists explore the mind as containing parts that can be analyzed as logical systems much like the parts of digital computers. This is a very powerful metaphor, which Boden captures in her title, but man is not a machine in the Newtonian sense, as the reductionist behaviorists assumed, and the mind is not a computer, although like a computer, it is an information processing system which acquires, creates, stores, and manages the information needed to guide the actions of its body. Machines that compute and communicate provide fruitful analogies and metaphors that help us to understand the mind. In her 1990 book The Creative Mind, Boden explored the conflict between physical determinism and creativity or the freedom that creativity implicitly requires. [Freedom] can be touched by science without being destroyed by it. A computational psychology can allow that much human action is self-generated and self-determined, involving deliberate choices grounded in personal loyalties and/or moral principles. Indeed, it shows us how free action is possible at all. To a significant extent, arguments defending freedom against science parallel arguments pitting creativity against a scientific psychology. Worries about predictability and determinism, for example, crop up constantly in such discussions. In either case, pure indeterminism gives mere chaos. To choose one's actions freely is not to hand responsibility over to the unpredictable...And in either case, predictability may be a virtue. One would not go for advice on a moral problem to someone whose judgments are not usually reliable, nor admire someone whose good deeds were always grounded in passing whims.On the other hand, Boden sees room for random events as bringing us thoughts, supporting the idea that our thoughts come to us, but our actions come from us. Thoughts triggered by chance events, in the environment or within the brain, may be fruitfully integrated into the psychological structures of the mind concerned.Boden distinguishes "absolute randomness" (such as quantum physics provides) from mere "relative randomness" which may be predictable but is adequately random in some context (for example, pseudo-random numbers). She is not convinced of quantum mechanics and its absolute chance. But she is optimistic that her "A-randomness" could be harnessed by creative computers. [Indeed, the latest Intel computer processing chips provide a purely random source of noise.] What is useful for creativity in minds and evolution is useful for creative computers too. A convincing computer model of creativity would need some capacity for making random associations and/or transformations. Its randomizing procedures might be A-random; for example, its instructions or associations might sometimes be chosen by reference to lists of random numbers. But they need not be: R-randomness would do. Indeed, some creative programs rely on random numbers at certain points, and genetic algorithms can produce order out of chaos. Moreover, some computer models spend their 'spare' time searching for analogies in a relatively unconstrained way. This computerized R-randomness could exist alongside more systematic (and somewhat more reliable) 'rules' for generating useful ideas.But Boden wonders whether absolute randomness exists and implies absolute unpredictability. An event that is unpredictable in the strongest sense is absolutely unpredictable ('A-unpredictable'), unforeseeable in principle because it is subject to no laws or determining conditions whatever. In other words, A-unpredictability (like A-randomness) implies indeterminism of the most fundamental kind. Whether there are any genuinely A-unpredictable events is disputed. According to quantum physics, there are. Quantum physics claims that some physical events, such as an electron 'jumping' from one energy-level to another, are uncaused and therefore (at that level of description) unpredictable. The electron jumps this way rather than that for no reason at all. In the terminology introduced above, each individual electron-jump is A/E-random (it has no order, and no explanation).Boden took up the subject of free will in her very first publication (Mind, 1959, v. 68, pp.257-8) Upholders of a free-will doctrine, rather than determinists, would, I think, want to claim a special sort of certainty in relation to decision-statements. They might not be prepared to say that we have free-will at all times, but would at least claim that there are many times when we can, by a free choice, direct our actions as we decide. Now if free-will is to be claimed at all, it is necessary that, at times when we exercise our free choice, we should do so consciously, and that we should have direct and incorrigible knowledge of what we are doing, in order that we may be held fully responsible for our voluntary acts. But in order to claim this incorrigible knowledge, and also to claim absolute certainty that our "act of will" will be followed by the appropriate voluntary act, a free-will theorist will have to distinguish between the voluntary instigation of a chain of events likely to lead to the desired result, X, and the later part of the chain, which is controlled causally. It is only over the first step of the chain that we can have control.In her massive Mind As Machine, Boden says that "cognitive science showed a way out of the impasse" between determinism and indeterminism, "by sidelining the determinism/ indeterminism issue and focusing instead on the huge cognitive and motivational differences between humans, dogs, and crickets." But Boden goes on to approve Daniel Dennett's two-stage model for free will. We have found that Dennett's decision model, and his six basic reasons for supporting it, are more cogent arguments for free will than any libertarian thinker has developed! Unfortunately, Dennett is a determinist and compatibilist who does not subscribe to his own arguments. Boden writes that Dennett developed [his idea] in his essay 'On Giving Libertarians What They Say They Want' (1978b: 286-99), and especially in his book Elbow Room: The Varieties of Free Will Worth Wanting (1984a). This book was a philosophical analysis, deepened by a cognitive scientist's appreciation of computational architecture. (Many years later, Dennett would return to the topic — now, with a focus on the evolution of the relevant architecture: Dennett 2003a.) It provided a host of examples illustrating the psychological processes that underlie our freedom of action, and various (normal or pathological) restrictions on it. It made clear that only creatures with a certain type of cognitive–motivational complexity are capable of choosing freely. Or, rather, to choose freely just is to exercise those architectural features. In other words, determinism/indeterminism is largely a red herring. Although (Dennett argued) there must be some element of indeterminism, this can't occur at the point of decision — for that would give us a type of "free will" that's not one worth wanting. The indeterminism, then, affects the considerations that arise during deliberation. The person may or may not think of x, or be reminded (perhaps by some environmental contingency) of y — where x and y include both facts and values. The deliberation itself, by contrast, involves deterministic processes of selection, weighting, and choice. (Deterministic, but not universalist: moral principles, cultural conventions, and individual preferences are all involved.) For Teachers
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