We investigated how motor agency in the voluntary control of body movement influences body awareness. In the Rubber Hand Illusion , synchronous tactile stimulation of a rubber hand and the participant’s hand leads to a feeling of the rubber hand being incorporated in the participant’s own body. One quantifiable behavioural correlate of the illusion is an induced shift in the perceived location of the participant’s hand towards the rubber hand. Previous studies showed that the induced changes in body awareness are (...) local and fragmented: the proprioceptive drift is largely restricted to the stimulated finger. In the present study, we investigated whether active and passive movements, rather than tactile stimulation, would lead to similarly fragmented body awareness. Participants watched a projected image of their hand under three conditions: active finger movement, passive finger movement, and tactile stimulation. Visual feedback was either synchronous or asynchronous with respect to stimulation of the hand. A significant overall RHI, defined as greater drifts following synchronous than asynchronous stimulation, was found in all cases. However, the distribution of the RHI across stimulated and non-stimulated fingers depended on the kind of stimulation. Localised proprioceptive drifts, specific to the stimulated finger, were found for tactile and passive stimulation. Conversely, during active movement of a single digit, the proprioceptive drifts were not localised to that digit, but were spread across the whole hand. Whereas a purely proprioceptive sense of body-ownership is local and fragmented, the motor sense of agency integrates distinct body-parts into a coherent, unified awareness of the body. (shrink)

Intention was seen traditionally as a philosophical concept, before being debated more recently from psychological and social perspectives. Today the cognitive sciences approach intention empirically, at the level of its underlying mechanisms. This naturalization of intention makes it more concrete and graspable by empirical sciences. This volume offers an interdisciplinary integration of current research on intentional processes naturalized through action, drawing on the theoretical and empirical approaches of cognitive neuroscience, psychology, philosophy, and sociology. Each chapter integrates several disciplinary perspectives. Taken (...) together, the chapters show that the reunification of the different dimensions of intentional processes may constitute an adequate basis for a general model of intentional processes and their links to action. This can be applied at various levels, from neuronal activity to self-constitution, from the expression of intentional actions at the individual level to their expression in social contexts, and to the recognition of intention in actions executed by others.ContributorsColin Allen, Mireille Bonnard, Vittorio Gallese, Jozina B. de Graaf, Franck Grammont, Patrick Haggard, Marco Iacoboni, Dorothée Legrand, Pierre Livet, Albert Ogien, Jean Pailhous, Jean-Luc Petit, Jean-Michel Roy, Jessica A. Sommerville, Manos Tsakiris, Amanda L. Woodward. (shrink)

The body may be the object we know the best. It is the only object from which we constantly receive a flow of information through sight and touch; and it is the only object we can experience from the inside, through our proprioceptive, vestibular, and visceral senses. Yet there have been very few books that have attempted to consolidate our understanding of the body as it figures in our experience and self-awareness. This volume offers an interdisciplinary and comprehensive treatment of (...) bodily self-awareness, the first book to do so since the landmark 1995 collection The Body and the Self, edited by José Bermúdez, Naomi Eilan, and Anthony Marcel. Since 1995, the study of the body in such psychological disciplines as cognitive psychology, cognitive neuroscience, psychiatry, and neuropsychology has advanced dramatically, accompanied by a resurgence of philosophical interest in the significance of the body in our mental life. The sixteen specially commissioned essays in this book reflect the advances in these fields. The book is divided into three parts, each part covering a topic central to an explanation of bodily self-awareness: representation of the body; the sense of bodily ownership; and representation of the self. ContributorsAdrian Alsmith, Brianna Beck, José Luis Bermúdez, Anna Berti, Alexandre Billon, Andrew J. Bremner, Lucilla Cardinali, Tony Cheng, Frédérique de Vignemont, Francesca Fardo, Alessandro Farnè, Carlotta Fossataro, Shaun Gallagher, Francesca Garbarini, Patrick Haggard, Jakob Hohwy, Matthew R. Longo, Tamar Makin, Marie Martel, Melvin Mezue, John Michael, Christopher Peacocke, Lorenzo Pia, Louise Richardson, Alice C. Roy, Manos Tsakiris, Hong Yu Wong. (shrink)