Pierre Poirier

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

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

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.

In our critical review of Doing without Concepts, we argue that although the heterogeneity hypothesis (according to which exemplars, prototypes and theories are natural kinds that should replace ‘concept’) may end fruitless debates in the psychology of concepts, Edouard Machery did not anticipate one consequence of his suggestion: Definitions now acquire a new status as another one of the bodies of information replacing ‘concept’. In order to support our hypothesis, we invoke dual-process models to suggest that prototypes, exemplars and theories are ‘Type 1’ concepts (automatic, implicit) and definitions ‘Type 2’ concepts (controlled, explicit). In the context of this argument, we suggest that one must better distinguish between Type 1 theories (e.g., Bayesian causal nets) and Type 2 theories (e.g., scientific) that explicitly control definitions.

As is often the case when scientific or engineering fields emerge, new concepts are forged or old ones are adapted. When this happens, various arguments rage over what ultimately turns out to be conceptual misunderstandings. At that critical time, there is a need for an explicit reflection on the meaning of the concepts that define the field. In this position paper, we aim to provide a reasoned framework in which to think about various issues in the field of distributed cognition. We argue that both relevant concepts, distribution and cognition, must be understood as continuous. As it is used in the context of distributed cognition, the concept of distribution is essentially fuzzy, and we will link it to the notion of emergence of system-level properties. The concept of cognition must also be seen as fuzzy, but for a different reason: due to its origin as an anthropocentric concept, no one has a clear handle on its meaning in a distributed setting. As the proposed framework forms a space, we then explore its geography and visit famous landmarks.

It has been commonplace in epistemology since its inception to idealize away from computational resource constraints, i.e., from the constraints of time and memory. One thought is that a kind of ideal rationality can be specified that ignores the constraints imposed by limited time and memory, and that actual cognitive performance can be seen as an interaction between the norms of ideal rationality and the practicalities of time and memory limitations. But a cornerstone of naturalistic epistemology is that normative assessment is constrained by capacities: you cannot require someone to do something they cannot or, as it is usually put, ought implies can. This much we take to be uncontroversial. We argue that differences in architectures, goals and resources imply substantial differences in capacity, and that some of these differences are ineliminable. It follows that some differences in goals and architectural and computational resources matter at the normative level: they constrain what principles of normative epistemology can be used to describe and prescribe their behavior. As a result, we can expect there to be important epistemic differences between the way brains, individuals, and science work.

Dans ce texte, nous proposons un cadre, qui vise à intégrer les contributions des approches constructionnistes et biologiques dans un domaine précis, celui des maladies mentales. Pour ce faire, nous utiliserons quelques propositions récentes faites par des philosophes de la biologie — plus spécifiquement les idées avancées par les tenants de la « théorie des systèmes développementaux » ainsi que la notion d’« enracinement génératif » .In this paper, we are proposing a framework to integrate the core insights of the constructivist and biological approaches of mental illness. In order to do so, we will use some recent propositions by philosophers of biology, specifically ideas put forth by «developmental system theory» and the notion of «generative entrenchment»