Remarques critiques sur l'ouvrage de Christiane Chauviré, Sandra Laugier, Jean-Jacques Rosat, Wittgenstein : les mots de l’esprit. Paris, Vrin, 2001,.

Popper a passé sa licence sous la direction de Bühler en 1928. Affirmer que Popper a été profondément influencé, non seulement par la théorie du langage de Bühler, mais aussi par sa psychologie, ne correspond pas à l’opinion courante. Le deuxième chapitre de Die beiden Grundprobleme der Erkenntis montre clairement que Karl Bühler a représenté l’un des points de départ les plus importants de la théorie de l’esprit de Popper. Selon Popper, dans l’épistémologie de Carnap, il y a un « (...) préjudice inductif » : afin de rétablir une opinion neutre et adopter une épistémologie qui soit indépendante de la psychologie, il est nécessaire de démontrer que, dans la psychologie aussi, le déductivisme est possible et concevable. Popper donne des exemples très clairs de psychologie déductive et cite la théorie de Kant, Johannes Mueller, l’École Wuerzburg et Ernst Mach. Le choix de tels exemples est significatif afin de comprendre la nature de la formation de Popper. En particulier, il est important de souligner l’absence de la « psychologie de la Gestalt » ou de ses penseurs, tels que Wertheimer, Koehler, Koffka, etc. En effet, Bühler s’opposait fortement à la psychologie de la Gestalt de l’École Wertheimer et, entre l’Institut Bühler de Vienne et les psychologues de la Gestalt à Berlin, il y avait une véritable rivalité. Popper — qui est normalement considéré, de façon simpliste, comme étant « un psychologue gestaltiste » — a tout à fait adopté l’idée de Bühler.Popper graduated under Bühler's direction in 1928. It's not part of the common view to say that Popper was strongly influenced, not only by Bühler's theory of language, but also by his psychology. The second chapter of Die beiden Grundprobleme der Erkenntnis shows clearly that one of the fundamental starting points for Popper's theory of mind was Karl Bühler. According to Popper, an “inductive prejudice” is contained in Carnap's epistemology : to restore a neutral point of view and to adopt an epistemology independent of psychology, it is necessary to show that, within the psychology, the deductivism is also possible, or thinkable. Popper provides some clear examples of deductive psychology and cites Kant's outlook, Johannes Mueller, the Wuerzburg's school and Ernst Mach. The choice of such examples is very important for the understanding of the nature of Popper's training. It is significant, in particular, the absence of the Gestaltpsychology or of its exponents, such as Wertheimer, Koehler, Koffka etc. In fact, Bühler was in sharp contrast with the Gestaltpsychology of Wertheimer's school and between the Bühler's Vienna Institute and the Berlin Gestalt -psychologists there was a real rivalry. Popper — who by the standard view is simplistically considered “a gestaltist psychologist” — adopted completely the Bühler's point of view. (shrink)

This article is an analysis of a collection of articles published by Gilles Deleuze in 1953 under the direction of Georges Canguilhem. This collection, which has been little read and commented upon, sheds light on the intellectual trajectory of its author by underlining the theoretical hesitations that were his. I show that Deleuze then outlined an ambitious “psycho-sociological” project that he never fully realized. To do this, I reconstitute the psychological and ethological subtext of the book by following his sources; (...) I thus bring to light real theoretical positions often unnoticed in his work (in particular with respect to Henri Bergson, Jakob von Uexküll, and gestaltpsychology). I then argue that the difficulties linked to the theory of perception lead Deleuze to turn away from this project in order to devote himself to more specifically ontological problems. However, I suggest that these difficulties persist throughout Deleuze's works, where notions such as “sign” and “semiotics” both cover and avoid specifically perceptual problems. (shrink)