L'importance que les défenseurs du Research Domain Criteria (RDoC) accordent aux circuits du cerveau dans la compréhension des désordres mentaux a conduit certains chercheurs à suspecter qu'on avait affaire à un programme de recherche foncièrement réductionniste. Puisque le RDoC devrait éventuellement affecter la psychiatrie clinique, on a craint qu'elle ne se transforme en une science neuro-comportementale appliquée sans tenir compte de l'esprit (mindless). Cet article montre en quoi le projet du RDoC s'éloigne du réductionnisme classique et comment il en évite (...) les écueils. Pour cette raison, du moins en principe, le RDoC pourrait enrichir plutôt qu'appauvrir la psychiatrie clinique. Pour conclure, les effets néfastes produits par le réductionnisme de façade des défenseurs du RDoC seront soulignés. (shrink)

I use Ian Hacking 's views to explore ways of classifying people, exploiting his distinction between indifferent kinds and interactive kinds, and his accounts of how we 'make up' people. The natural kind/essentialist approach to indifferent kinds is explored in some depth. I relate this to debates in psychiatry about the existence of mental illness, and to educational controversies about the credentials of learner classifications such as 'dyslexic'. Claims about the 'existence' of learning disabilities cannot be given a clear, simple (...) and unambiguous interpretation. In particular I show that science cannot deliver a definitive taxonomy of learner categories, and that this has important implications for teachers and policy makers. (shrink)

I use Ian Hacking’s views to explore ways of classifying people, exploiting his distinction between indifferent kinds and interactive kinds, and his accounts of how we ‘make up’ people. The natural kind/essentialist approach to indifferent kinds is explored in some depth. I relate this to debates in psychiatry about the existence of mental illness, and to educational controversies about the credentials of learner classifications such as ‘dyslexic’. Claims about the ‘existence’ of learning disabilities cannot be given a clear, simple and (...) unambiguous interpretation. In particular I show that science cannot deliver a definitive taxonomy of learner categories, and that this has important implications for teachers and policy makers. (shrink)

The computational approach to psychiatric disorders, including delusions, promises explanation and treatment. Here, we argue that an information processing approach might be misleading to understand psychopathology and requires further refinement. We explore the claim of computational psychiatry being a bridge between phenomenology and physiology while focussing on the ontological commitments and corresponding methodology computational psychiatry is based on. Interconnecting ontological claims and methodological practices, the paper illustrates the structure of theory-building and testing in computational psychiatry.First, we will explain the ontological (...) commitments computational psychiatry is grounded in, theBayesian Brain hypothesis(BBH) of unconscious inference, paired with normative deontic approaches applied to gauge psychopathology. We then turn to the steps taken in empirical paradigms, from definitions, which are used as starting points, to the operationalisation and isolation of cognitive processes and hypothesis testing based on algorithmic models, to consecutive interpretations regarding the aetiology of psychiatric disorders. We outline how experimental paradigms in computational psychiatry are specifically designed to confirm aberrations in assumed inferential processes, which are thought of as being the underlyingcore invariant features.We will illustrate a gap between the ontological commitments of computational psychiatry and the operationalisation and testing of the cognition assumed to be relevant for psychopathology. This conceptual gap is of utmost importance when designing computational paradigms and may impede a crisp understanding of the approach. Lastly, in evaluating the conceptual gap, it becomes apparent that the information processing formalism used in computational psychiatry is still grounded in rational cognitive psychology. (shrink)

In light of the ongoing validity crisis in psychiatric classification, phenomenologically oriented psychiatric study has gained traction. This paper assesses two modes of investigation proposed by phenomenologists in studying mental disorders: the ideal type approach and the essential type approach. Despite the recent suggestion that they are antithetical approaches, I argue that they should constantly constrain and inform each other. In short, I advance a mutual complementarity thesis. Having established this thesis, I conclude by demonstrating how this proposal can function (...) as an heuristic strategy for effectively facilitating the recently proposed psychiatric research initiative, i.e. the ontological project of phenomenological psychopathology. (shrink)

Mental health professionals working in hospitals or community clinics inevitably face the realisation that we possess imperfect conceptual means to understand mental disorders. In this paper the authors bring together ideas from the fields of Philosophy, Psychiatry, Cognitive Psychology and Linguistics to reflect on the ways we represent phenomena of high practical importance that we often take for granted, but are nevertheless difficult to define in ontological terms. The paper follows through the development of the concept of psychosis over the (...) last two centuries in the interplay of three different conceptual orientations: the categorical, dimensional and network approaches. Each of these represent the available knowledge and dominant thinking styles of the era in which they emerged and take markedly different stances regarding the nature of mental phenomena. Without particular commitment to any ontological positions or models described, the authors invite the reader into a thinking process about the strengths and weaknesses of these models, and how they can be reconciled in multidisciplinary settings to benefit the process of patient care. (shrink)