Pierre Poirier

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.

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»

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

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.

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.

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 nature of first-person introspective data on the matter, philosophers have traditionally 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 categories 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 direction 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 address 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

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.

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?

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.

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.

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.

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.