Justin Leiber

(1938 - 2016)

How to build a theory in cognitive science. Valerie Gray Hardcastle. Albany: State University of New York. Press, 1996Language, thought, and consciousness. Peter Carruthers. Cambridge: Cambridge University. Press, 1996. ISBN 0–521–48158–9 (hc)Young children's knowledge about thinking. John H. Flavell, Frances L. Green & Eleanor R. Flavell with Commentary by Paul L. Harris & Janet Wilde Astington. Monographs of the Society for Research in Child Development, 1995, 60 (1, Serial No, 243) Chicago: The University of Chicago PressValuing emotions. Michael Stocker with Elizabeth Hegeman. Cambridge: Cambridge University Press, 1996Explaining attitudes: a practical approach to the mind. Lynne Rudder Baker. Cambridge: Cambridge University Press, 1995. ISBN 0–521–42053–9 $59.95The prehistory of the mind: a search for the origins of art, religion and science. Steven Mithen. London: Thames and Hudson, 1996The discovery of spoken language Peter Jusczyk. Cambridge, MA: MIT Press/Bradford Books, 1997. ISBN 0–262–10058–4 $32.50Noam Chomsky: a life of dissent. Robert F. Barksky Cambridge, MA: MIT Press ISBN 0–262–02418–7 $27.50.

Speaking: from Intention to Articulation Willem J. M. Levelt, 1989 (1993 paperback) Cambridge, MA: MIT Press ISBN: 0–262–12137–9(hb), 0–262–62089–8(pb)Rules for Reasoning Richard E. Nisbett (Ed.), 1993 Hillsdale, NJ, Lawrence Erlbaum Associates ISBN: 0–8058–1256–3(hb), 0–8085–1257–1 (pb)Readings in Philosophy and Cognitive Science Alvin I. Goldman, 1993 Cambridge, MA, MIT Press ISBN: 0–262–07153–3(hb), 0–262–57100–5(pb)Language Comprehension in Ape and Child, Monographs of the Society for Research in Child Development, Serial No. 233, Vol. 58, Nos 3–4 Sue Savage‐Rumbaugh, Jeannine Murphy, Rose A. Sevcik, Karen E. Brakke, Shelly L. Williams & Duane M. Rumbaugh, with commentary by Elizabeth Bates, and a reply by the authors, 1993 Chicago: University of Chicago Press ISBN: 0–226–73542–7Language, Music and Mind Diana Raffman, 1993 Cambridge, MIT Press/Bradford Books ISBN: 0–262–18150–9Psychology of Proof Lance J. Rips, 1994 Cambridge, MA, MIT Press ISBN: 0–262–18153–3Human and Machine Thinking P. Johnson‐Laird, 1993 Hillsdale, NJ, Erlbaum ISBN: 0–8058–0921‐XIntelligent Behavior in Animals and Robots David McFarland & Thomas Bosser, 1993 Cambridge, MA and London, UK: MIT Press/ Bradford Books ISBN: 0–262–13293–1The Eye and the Mind: Reflections on Perception and the Problem of Knowledge Charles Landesman, 1993 Dordrecht: Kluwer Academic Publishers ISBN: 0–7923–2586–9The Moral Self GilG. Noam & Thomas E. Wren (Eds), in cooperation with Gertud Nunner‐Winkler & Wolfgang Edelstein, 1993 Cambridge, MA: MIT Press ISBN: 0–262–14052–1The Logic of Discovery: A Theory of the Rationality of Scientific Research Scott A. Kleiner, 1993 Dordrecht: Kluwer Academic Publishers ISBN: 0–7923–2371–8Folk Psychology and the Philosophy of Mind S.M. Christenson & D.R. Turner (Eds), 1993 Hillsdale, NJ: Lawrence Erlbaum ISBN: 0–805–80931–7.

This book, by two philosophers at Bradford University, immediately strikes the American reader with two differences in the British philosophical scene. One is the enveloping commitment to "Davidsonian linguistics" which still seems the central topic for many of Oxford's younger philosophers. In this slim volume Davidsonian semantics is thought to provide that some measure of cross-cultural understanding is possible, that humanistic descriptions of human activity are irreplaceable and unrevisable since action explanation is non-nomothetic though often causal and inferential, that collectives may have expressive but not explanatory autonomy, and that social descriptions are not irredeemably value-laden. Who would have thought Davidsonian semantics had so much blood in it? Though the Tarskian T-Convention requirement is outlined in the short introductory chapter, one is hard put to see any real connection between the insistence on model theoretic and extensional approaches and the subsequent chapters. Though the introduction briefly allows that intensional notions are to be ignored, we are later assured that we may safely ascribe one classical logic to primitives and humans generally since "only at the highly advanced level of theoretical physics has it been found necessary to experiment with different logics". Ignored are those who think mathematics itself requires an intuitionist or intensional understanding. Also ignored are the many linguists who have recently held that the vast majority of sentences in everyday speech require intensional or modal analysis. The authors also use the label "functionalism" for the view that a society is something like a biological organism rather than a collection of rational agents. One finds this usage disconcerting. Much more unfortunate is that the authors seem innocent of the rich philosophical and psychological and neurological work on mental states and psychological explanation that has grown up around the more recent usage of the term.--Justin Leiber, University of Houston.

This vigorously written and clearly argued Bradford Book is a must for anyone interested in intentionality, functionalism, and the status and prospects of scientific and folk psychology. It is a measure of how much has changed in the philosophy of psychology that the familiar arguments--masterfully marshalled and extended here-against the reducibility of everyday psychological statements to statements about brain states within an experimental cognitive science are here, for Stich, arguments against folk psychology. The experimental behaviorists are understood as having issued the revolutionary, and reasonably justified, claim that our everyday folk psychological talk is simply false: false in much the way of demonology in that the things folk psychology talks about simply are not there. What helped us to be less troubled by this claim was analytic or logical behaviorism: folk psychological talk was perfectly viable because it really was just short-hand dispositional talk about behavior. Using beliefs as a central stalking horse, Stich argues, as recent eliminative materialists like the Churchlands, that it may well be that the terms of folk psychology have no referents. In brief, there simply may be no such things as beliefs, any more than there are devils, though of course there are all sorts of interesting phenomena that have led us to talk as if there were such. Beliefs are not in the head, nor anywhere else either.

Paradoxes are many things. Artificial intelligence views them as viruses of the brain, strange replicators that unexpectedly exploit design possibilities. For the child, they are intellectual cartwheels, an everyday delight. For mathematicians and logicians, they reveal skeletons in the closet of reason. For philosophers and dramatists, they capture the contradictions of experience. The historian of ideas sees that they come in successive waves, surging through Classical Greece, the Renaissance and the twentieth century. Professor Leiber's user-'friendly guide to paradoxes provides an up-to-date survey of an ancient and perennial source of puzzlement. Book jacket.

That this is one of the most distinguished books in the excellent Bradford Books cognitive science/philosophy series is suggested by the March 1983 issue of Behavioral and Brain Sciences, in which we find a precis of the book, some twenty commentaries, and Dretske's replies. Physicalists and anti-physicalists in psychology have both stressed the importance of "top-down" strategies and have debated, prospectively, about the likelihood that we eventually will have suitable reductions, or explanatory instantiations, of psychological generations in neurophysiological terms. Dretske takes the more straightforward approach, starting with an avowedly physical notion of information and then trying to show how one can make, building on this foundation, a reasonable construal of knowledge, perception, and belief. Dretske starts with the following information-theoretic specification of a signal's information content: a signal r carries the information that s is F = the conditional probability of s's being F, given r, is l. Thus, to use Dretske's humble example, "My gas gauge carries the information that I still have some gas left, if and only if the conditional probability of my having some gas left, given the reading of the gauge, is l." The parenthetical clause makes the causal character of this analysis clear: the state of the source is related by physical laws to the occurrence of the signal--the gas in the tank causes the gauge reading. Insisting on the conditional probability of l has the advantage of preserving the properties of certainty, transitivity, and addition that we associate with knowledge. If the gas gauge does carry the information that my tank has gas, then my tank must have gas. If my statement that my gauge indicates gas carries the information that it does so indicate, then information flows intact from signal to signal. And finally, if the signal carries the information that s is F, and also carries the information that s is G, then it carries, at the same level of probability assigned each, the information that s is F and G. Now we can, eventually, say that K knows that s is F = K's belief that s is F is caused by the information that s is F. The "eventually" part is important, for what is most instructive and provoking about this book is the way in which Dretske lays out the steps in constructing viable construals of knowledge, perception, and belief out of the root notion of information.--Justin Leiber, The University of Houston.

A. M. Turing has bequeathed us a conceptulary including 'Turing, or Turing-Church, thesis', 'Turing machine', 'universal Turing machine', 'Turing test' and 'Turing structures', plus other unnamed achievements. These include a proof that any formal language adequate to express arithmetic contains undecidable formulas, as well as achievements in computer science, artificial intelligence, mathematics, biology, and cognitive science. Here it is argued that these achievements hang together and have prospered well in the 50 years since Turing's death.

This book, by two philosophers at Bradford University, immediately strikes the American reader with two differences in the British philosophical scene. One is the enveloping commitment to "Davidsonian linguistics" which still seems the central topic for many of Oxford's younger philosophers. In this slim volume Davidsonian semantics is thought to provide that some measure of cross-cultural understanding is possible, that humanistic descriptions of human activity are irreplaceable and unrevisable since action explanation is non-nomothetic though often causal and inferential, that collectives may have expressive but not explanatory autonomy, and that social descriptions are not irredeemably value-laden. Who would have thought Davidsonian semantics had so much blood in it? Though the Tarskian T-Convention requirement is outlined in the short introductory chapter, one is hard put to see any real connection between the insistence on model theoretic and extensional approaches and the subsequent chapters. Though the introduction briefly allows that intensional notions are to be ignored, we are later assured that we may safely ascribe one classical logic to primitives and humans generally since "only at the highly advanced level of theoretical physics has it been found necessary to experiment with different logics". Ignored are those who think mathematics itself requires an intuitionist or intensional understanding. Also ignored are the many linguists who have recently held that the vast majority of sentences in everyday speech require intensional or modal analysis. The authors also use the label "functionalism" for the view that a society is something like a biological organism rather than a collection of rational agents. One finds this usage disconcerting. Much more unfortunate is that the authors seem innocent of the rich philosophical and psychological and neurological work on mental states and psychological explanation that has grown up around the more recent usage of the term.--Justin Leiber, University of Houston.

The notion of moral philosophy that has been dominant in Anglo-American philosophizing since G.E. Moore is peculiar. Reviewing traditional works such as Aristotle's Nicomachean Ethics, Hume's Treatise, Kant's Critique of Pure Reason, and Mill's Utilitarianism, one is tempted to call this new notion of moral philosophy a different subject; and if one does this, it is less peculiar. However, let us accept that this new sort of moral philosophy does belong to the previous tradition; granted this, I shall explain why I think it peculiar through considering the status of the judgement that Hitler was a bad man.Consider the sentential function ‘x is a bad man’. ‘Hitler’ seems an obviously suitable substitution for ‘x, at least in the most important sense. That is, one wants to say that if it is not proper or true to say that ‘Hitler was a bad man’ or ‘Hitler was bad’, it fs never proper or true to issue a sentence of this form, restricting x to human beings. Hitler seems indeed, in this most important sense, to be a paradigm case. One wants to say: if Hitler was not a bad man, who could be?

This book is a clear, judicious, explanatory, and short analysis of the development of linguistics, particularly in this century. While describing the ups and downs of autonomous linguistics, in its structuralist and various generativist phases, and the humanist, Marxist, and sociological opposition, Newmeyer from time to time makes striking points about the strong influence of national political agendas, as expressed in research money, on the waxing or waning of theoretical orientations in linguistics. Mirroring an older British imperialism, the burgeoning of autonomous linguistics in the 1950s and 1960s was underwritten by a United States government anxious to support a scientific access to societies it wished to enlighten and dominate. Indeed, the end of sumptuous Department of Defense funding for MIT linguistics may even have had a hand in the revolt against the Chomskysan orthodoxy. But Newmeyer forms his intellectual history with enough of a characterization of the theoretical advances, arguments, and resolutions to make it clear that his central judgement is that autonomous linguistics is science and is a viable enterprise.

As is well known, Alan Turing drew a line, embodied in the "Turing test," between intellectual and physical abilities, and hence between cognitive and natural sciences. Less familiarly, he proposed that one way to produce a "passer" would be to educate a "child machine," equating the experimenter's improvements in the initial structure of the child machine with genetic mutations, while supposing that the experimenter might achieve improvements more expeditiously than natural selection. On the other hand, in his foundational "On the chemical basis of morphogenesis," Turing insisted that biological explanation clearly confine itself to purely physical and chemical means, eschewing vitalist and teleological talk entirely and hewing to D'Arcy Thompson's line that "evolutionary 'explanations,'" are historical and narrative in character, employing the same intentional and teleological vocabulary we use in doing human history, and hence, while perhaps on occasion of heuristic value, are not part of biology as a natural science. To apply Turing's program to recent issues, the attempt to give foundations to the social and cognitive sciences in the "real science" of evolutionary biology (as opposed to Turing's biology) is neither to give foundations, nor to achieve the unification of the social/cognitive sciences and the natural sciences.

           “I’ve written a story!†My eighty year old father’s rich, booming voice fired up the phone line, briefly burning through the fuzzy enunciation that stemmed from a minor stroke of three years back. It hadn’t been the stroke but rather his growing blindness that had slowed his production. Through dictation he’d still kept up his short monthly magazine column (in one of the last and most gravely scatological of these he’d inadvertently shamed my Enlightenment scholarship by writing “I thought everyone knew that Frederick the Great and Voltaire corresponded about their bowel movementsâ€). He sounded happier and more alive than I’d heard him in years, though the sketch he’d written, from a cat’s viewpoint, is spectrally peopled under aliases by his Shakespearian actor parents, and a spunky Lesbian witch who lightheartedly inducts my mother into her coven through ritualized sexual intercourse, which scandalizes my grandmother and titillates my father, who confesses along the way to alcoholism, habitual premature ejaculation, voyeurism, and unassuageable jealousy of his illustrious father, whose death in 1949 aroused only “a cold pride†(unlike the wrench I know he felt when his wife and his mother died in the late 1960s). The sketch resolves with his dead father’s body intoning Hamlet’s lines about what a piece of work is man, ending with “A paragon of animals,†which the feline observer coolly concludes must surely refer to cats.            That phone call was my last conversation with my father. A month before he had, quixotically, married a woman he’d known for two decades, on his part decidedly nonexclusively, a few days after she got a diagnosis of inoperable lung cancer. Now, in deference to her fear of flying, they took off on a tiring train and car trip from San Francisco to a convention in London, Ontario, where my exhausted father began his slide into incontinence, depression, and dementia..

The Wild Child, who lives through much of childhood without exposure to language or culture, is exceedingly rare. I examine three of the most famous and most well authenticated cases: Helen Keller, who was isolated from eighteen months until her seventh year; ‘Victor’, the wild boy of the forest near Aveyron, whom Itard studied; and ‘Genie,’ who was isolated from language from age two until the middle of her thirteenth year. Attention is paid both to the development of these individuals and to the conduct and misconceptions of those who examined and trained them. Various morals are drawn, which might also have application to research on non-human primates