Pierre Poirier

Is thinking necessarily linguistic? Do we think with words, to use Bermudez’s (2003) phrase? Or does thinking occur in some other, yet to be determined, representational format? Or again do we think in various formats, switching from one to the other as tasks demand? In virtue perhaps of the ambiguous na- ture of first-person introspective data on the matter, philosophers have tradition- ally disagreed on this question, some thinking that thought had to be pictorial, other insisting that it could not be but linguistic. When any problem divides a community of otherwise intelligent rational thinkers, one suspects some deep conceptual confusion is at play. Indeed, we believe that the conceptual cate- gories used to frame these and related questions are so hopelessly muddled that one could honestly answer “both simultaneously”, or “neither”, depending one what is meant by the alternatives. But let’s get our priorities straight. This paper first and foremost aims at defending what we believe to be a step in that direc- tion of the proper view of thinking, a view we call the spatial-motor view. In order to do so, however, we have found it essential to start by addressing the conceptual confusion just alluded to. Accordingly, the paper proceeds in two steps. First a conceptual step, in which we reconsider some of the traditional categories brought into play when thinking about thinking. Then an empirical step, in which we offer empirical evidence for one of the views conceptually isolated during the first part of the work. Future version of this collaborative work will include a speculative step in which we spin out an evolutionary and developmental scenario whose function it is justify the spatial-motor view by showing how it fits into current evolutionary and developmental theories.

En refusant à la psychologie la latitude accordée aux autres sciences, l’argument concluant à l’irréductibilité des propriétés psychologiques à partir de leur réalisation multiple manifeste une attitude antinaturaliste à l’égard de cette science. En science, il est possible de relativiser les réductions à des domaines bien définis, c’est-à-dire des domaines qui découpent la nature d’une manière non ad hoc , et de corriger en conséquence l’appareil conceptuel des théories. Et en science, il est possible de construire des niveaux abstraits et idéalisés permettant la description du comportement global des systèmes, niveaux qui font abstraction de complexités inutiles. Si l’on accorde les mêmes privilèges à la psychologie, la réalisation multiple des propriétés psychologiques ne permet pas d’inférer leur irréductibilité.In science, reductions can be relative to specific, well-defined domains, domains that carve nature in a non ad hoc way. Relativization to domains is a time-honored way to adjust the conceptual apparatus of theories. And in science, schemes can be defined to describe the global behavior of systems in a way that abstracts from unnecessary detail. I show that the classical argument from multiple realizability to non-reducibility vanishes once the same leeway is granted to psychology. By denying psychology the use of these standard theory-building strategies in science, the argument exhibits an antinaturalist attitude towards psychology, an attitude that may be welcome in some antiphysicalist quarters but that should be shunned in cognitive science.

Evolutionary psychology presupposes relations between theories of different domains that the two traditional models, reduction and autonomy, cannot properly account for. We aim to construct a model of relations between theories that succeeds where traditional models fail. We show that the multiple realizability argument, on which the autonomist model is thought to rest, is compatible with reductionism and, following Kim, that an autonomist reading of the argument deprives psychology of its scientific status. We therefore opt for a reductionist model compatible with functionalism and multiple realizability, but show that, within evolutionary psychology at least, the very application of the conditions of reduction requires strong interactions between psychology and various other adjacent disciplines. We also show that reduction must be preceded in evolutionary psychology by an of the reduction base, which brings still other disciplines into play. Finally, we present a model of the interaction between disciplines we believe accounts best for these relations and discuss the problems facing this kind of enterprise

According to Wimsatt, a proper treatment of reduction must distinguish between two types of reductionist activities scientists engage in. One of the benefits of better understanding the nature of reduction, he believes, is that it shows that eliminativism, that is, the elimination of concepts and theories from science, is a rather circumscribed and limited affair, especially in the case of inter-level reductionist activities. While I agree with Wimsatt that it is important to distinguish the two types of reductionisms, I show that elimination in inter-level reductionist activities can be a powerful heuristic in science, driving both inter-level and successional reduction.

We argue that atomistic learning?learning that requires training only on a novel item to be learned?is problematic for networks in which every weight is available for change in every learning situation. This is potentially significant because atomistic learning appears to be commonplace in humans and most non-human animals. We briefly review various proposed fixes, concluding that the most promising strategy to date involves training on pseudo-patterns along with novel items, a form of learning that is not strictly atomistic, but which looks very much like it ?from the outside?

According to a popular version of the current evolutionary attitude in cognitive science, the mind is a massive aggregate of autonomous innate computational devices, each addressing specific adaptive problems. Our aim in this paper is to show that although this version of the attitude, which we call GOFEP , does not suffer from fatal flaws that would make it incoherent or otherwise conceptually inadequate, it will nevertheless prove unacceptable to most cognitive scientists today. To show this, we raise a common objection to the concept of innateness, not to mount an attack on GOFEP but to study how its proponents have attempted to meet that challenge. The aim of this move is to show that GOFEP cannot face the challenge without, as it were, losing its soul. There is, or so we will argue, something deep at the heart of GOFEP that prevents its proponents from meeting the challenge

According to Thagard and Stewart :1–33, 2011), creativity results from the combination of neural representations, and combination results from convolution, an operation on vectors defined in the holographic reduced representation framework. They use these ideas to understand creativity as it occurs in many domains, and in particular in science. We argue that, because of its algebraic properties, convolution alone is ill-suited to the role proposed by Thagard and Stewart. The semantic pointer concept allows us to see how we can apply the full range of HRR operations while keeping the modal representations so central to Thagard and Stewart’s theory. By adding another combination operation and using semantic pointers as the combinatorial basis, this modified version overcomes the limitations of the original theory and perhaps helps us explain aspects of creativity not covered by the original theory. While a priori reasons cast doubts on the use of HRR operations with modal representations :5039–5054, 1987) such as semantic pointers, recent models point in the other direction, allowing us to be optimistic about the success of the revised version

À Harvard durant l’année académique 1940-41, les philosophes-mathématiciens Quine, Tarski et Carnap débattaient de la possibilité d’établir une distinction entre les énoncés analytiques et synthétiques qui soit suffisamment mordante pour dégager un statut spécial à l’épistémologie. Quine et Tarski s’objectaient à la distinction et l’objection de Quine verra notamment le jour sous le titre fameux « Les deux dogmes de l’empirisme ». Carnap, dans son autobiographie intellectuelle, se souvient avoir alors craint : « are we now back to John Stuart Mill? ». Carnap avait compris qu’une épistémologie antipsychologiste comme celle du Cercle de Vienne ne peut subsister sans la présence d’une distinction de principe entre des énoncés analytiques et synthétiques. Il avait compris qu’un rejet de la distinction signifiait, à court ou moyen terme, un retour à l’épistémologie comme « psychologie de la science » telle que la pratiquait Auguste Comte, John Stuart Mill et Ernst Mach.

Cet ouvrage vise à délimiter le champ d'investigation de la philosophie de l'esprit. Il comprend huit chapitres. Le premier, le plus général, se veut une première délimitation du champ d'investigation de la philosophie de l'esprit à l'aide de ses trois concepts clés: l'intentionnalité, la rationalité et la conscience. Le chapitre suivant se veut une réflexion plus générale sur les motivations philosophiques qui commandent des jugements si opposés sur le statut ontologique et épistémologique de la psychologie du sens commun. Le chapitre IV dresse un tableau de ces différents programmes et des grands courants de la philosophie de l'esprit, en commençant par le behaviorisme, le physicalisme, le fonctionnalisme et le connexionnisme. Les trois chapitres suivants porteront sur les problèmes et débats liés à la naturalisation des trois propriétés principales de l'esprit, des trois problèmes principaux de la philosophie de l'esprit, soit les concepts d'intentionnalité, de rationalité et de conscience. Le chapitre V porte, d'une part, sur la nature de l'intentionnalité et les différents concepts de directionnalité (aboutness) que l'on retrouve actuellement en philosophie de l'esprit ; d'autre part, il s'agira pour nous de décrire et de classer les différents programmes de naturalisation de l'intentionnalité. Le chapitre six est ouvre de nouvelles perpectives en ce qu'il porte sur la nature de la rationalité et sur les différentes tentatives et arguments en faveur de sa naturalisation. Le chapitre VII s'attaque au problème central de la philosophie de l'esprit, à savoir la conscience.

A viable evolutionary cognitive psychology requires that specific cognitive capacities be (a) heritable and (b) ‘quasi-independent’ from other heritable traits. They must be heritable because there can be no selection for traits that are not. They must be quasi-independent from other heritable traits, since adaptive variations in a specific cognitive capacity could have no distinctive consequences for fitness if effecting those variations required widespread changes in other unrelated traits and capacities as well. These requirements would be satisfied by innate cognitive modules, as the dominant paradigm in evolutionary cognitive psychology assumes. However, those requirements would also be satisfied by heritable learning biases, perhaps in the form of architec- tural or chronotopic constraints, that operated to increase the canalization of specific cognitive capacities in the ancestral environment (Cummins and Cummins 1999). As an organism develops, cognitive capacities that are highly canalized as the result of heritable learning biases might result in an organism that is behaviourally quite similar to an organism whose innate modules come on line as the result of various environ- mental triggers. Taking this possibility seriously is increasingly important as the case against innate cognitive modules becomes increasingly strong.

By using the name of one of his first papers (See Clark 1987) for his latest book, Andy Clark proves how consistent his view of the mind has been over his career. Indeed Being There becomes the latest in a ten year effort, laid out over a series of books, to flesh out one of the few comprehensive proposals in philosophy of mind since Fodor’s Representational Theory of Mind (RTM). Each book in the series accentuates one aspect of Clark’s view. The first, Microcognition (Clark 1989), explores the importance of implementation. Except for a few pockets of resistance, the issue of implementation is by now wholly resolved in Clark’s favor but was, at the time, generally hostile to the idea of implementation (or "mere implementation" as it was commonly referred to back then) in studies of the mind. The second, Associative Engines (Clark 1993), stresses the importance of developmental issues, an idea that is still making waves in the cognitive science and neuroscience community (think of the flurry of models and experiments on developing theories of the mind (Carey 1985, Gopnik 1988, Gopnik and Meltzoff 1996). This latest effort argues for the importance of ecological issues, both for our general view of the mind and our explanation models in cognitive science. It explores the importance of being situated in a body and an environment, the importance of being there. Although each theme accentuated by Clark's books (implementation, development, and ecology) is generally biological in nature, Clark, unlike other biological views of the mind who tend to stress one biological aspect over the others, constantly manages to balance the different aspects in what amounts to perhaps the only integrated, or at least the most complete to date, biological view of the mind.