Gabrielle Jackson

The mechanistic concept of the body, as inherited from René Descartes, has generated considerable trouble in philosophy—including, at least in part, the mind-body problem itself. Still, the corps mécanique remains perhaps the most prevalent though least examined assumption in recent philosophy of mind. I discuss two notable exceptions. Gilbert Ryle and Maurice Merleau-Ponty rejected this assumption for surprisingly similar reasons. Writing at about the same time, though in different languages and in very different circles, they each attempted to articulate a non-mechanistic concept of the body by stressing the importance of skill: skillful behavior constituting cognition in Ryle’s case, and the skill body constituting perception in Merleau-Ponty’s case. In this article, I turn to their cautions and insights. By drawing out the relation between these two seemingly unrelated theorists, I hope to show that together Ryle and Merleau-Ponty have much to offer philosophy today.

Gilbert Ryle famously wrote that practical knowledge (knowing how) is distinct from propositional knowledge (knowing that). This claim continues to have broad philosophical appeal, and yet there are many unsettled questions surrounding Ryle’s basic proposal. In this article, I return to his original work in order to perform some intellectual archeology. I offer an interpretation of Ryle’s concept of action that I call ‘adverbialism’. Actions are constituted by bodily behaviours performed in a certain mode, style or manner. I present various challenges to adverbialism – scenarios in which it seems we publicly behave one way, but privately feel another. And I offer a response – Ryle’s stated practice of re-describing those situations in ways that pose no threat to his adverbialism. I also present an interpretation of practical knowledge in Ryle’s work. Knowing how is a special kind of action, undertaken only when we progressively self-modify our behaviours in the presence of new challenges or opportunities.

I develop an interpretation of Maurice Merleau-Ponty's concept of motor intentionality, one that emerges out of a reading of his presentation of a now classic case study in neuropathology—patient Johann Schneider—in Phenomenology of Perception. I begin with Merleau-Ponty's prescriptions for how we should use the pathological as a guide to the normal, a method I call triangulation. I then turn to his presentation of Schneider's unusual case. I argue that we should treat all of Schneider's behaviors as pathological, not only his abstract movements, as is commonly acknowledged in the secondary literature, but also crucially his concrete movements. Using these facts of Schneider's illness, I reconstruct a ‘fundamental function’ of consciousness, as Merleau-Ponty called it, in which there are two kinds of bodily agency: the power of the body to be solicited by a situation and the power of the body to project a situation. I propose that these powers became dissociated in Schneider's case, as evidenced by his abstract and concrete movements, while in the normal case, these powers comprise a dynamic unity, enacted as motor intentionality. I also discuss how my interpretation complements Merleau-Ponty's assertion that motor intentions exist between mind and matter.

This paper connects ideas from twentieth century Gestalt psychology, experiments in vision science, and Maurice Merleau-Ponty’s phenomenology of perception. I propose that when we engage in simple sensorimotor tasks whose successful completion is open, our behavior may be motivated by practical perceptual awareness alone, responding to invariant features of the perceptual field that are invisible to other forms of perceptual awareness. On this view, we see more than we think we see, as evidenced by our skillful bodily behavior.

In this article, I link the empirical hypothesis that neural representations of sensory stimulation near the body involve a unique motor component to the idea that the perceptual field is structured by skillful bodily activity. The neurophenomenological view that emerges is illuminating in its own right, though it may also have practical consequences. I argue that recent experiments attempting to alter the scope of these near space sensorimotor representations are actually equivocal in what they show. I propose resolving this ambiguity by treating these representations as responsive to the development or degeneration of know-how—which can be isolated as an appropriate object for scientific investigation.