Chapter 19: Motor Intentionality

Motor Intentionality from The Oxford Handbook of 4E Cognition provides a comprehensive philosophical and empirical analysis of motor intentionality, a concept originally introduced by Maurice Merleau-Ponty to describe the non-reflective, skillful bodily agency that operates distinct from conceptual or cognitive intentionality,. The discussion begins by examining the famous neuropsychological case of Schneider, a patient with brain injuries who exhibited a dissociation between the ability to perform concrete, habitual movements and the inability to execute abstract, arbitrary movements without projecting himself into a specific context,. The author connects these phenomenological insights to modern cognitive neuroscience, specifically the dual-systems model of visual processing, which distinguishes between the ventral stream (vision-for-perception) and the dorsal stream (vision-for-action),. This distinction is supported by evidence from patients with visual agnosia and optic ataxia, as well as studies on visual illusions like the Ebbinghaus and Muller-Lyer illusions, which demonstrate that the sensorimotor system can accurately guide grasping even when conscious perception is deceived,. The chapter argues for a representational stance on motor intentionality, positing that motor states satisfy criteria for representation—such as having correctness conditions and compositionality—while utilizing a non-conceptual format distinct from beliefs and desires,. These motor representations are described as having a hybrid direction of fit, similar to Millikan’s pushmi-pullyu representations, and are inherently dynamic, utilizing forward models to anticipate and control action outcomes,. Finally, the text addresses the "interface problem," which challenges researchers to explain how propositional attitudes like conscious intentions can coordinate with these non-conceptual motor representations to produce purposive behavior. The author critiques various solutions, including the common cause approach and demonstrative deference, before proposing a solution involving executable action concepts and motor schemas that bridge the gap between abstract reasoning and bodily movement,.