Distorted body representations and skilled action

Longo, Matthew R. (2017) Distorted body representations and skilled action. In: Grünbaum, T. and Christensen, M.S. (eds.) Sensation of Movement. Current Issues in Consciousness Research. Abingdon, UK: Routledge. ISBN 9781138646339.

Abstract

Several aspects of somatosensation require that immediate sensory signals be integrated with representations of body size and shape. Research has revealed that tactile size perception and position sense rely on distorted body representations. Such distortions raise a fundamental problem. The lack of proprioceptive afferent information is known to cause devastating impairments in skilled action, suggesting position sense is critical for skilled action. How can skilled action co-exist with distorted body representations? I review research on distorted body representations and discuss ways such distortions might be reconciled with dexterous action. I end with speculations about implications for our sensation of movement. Book synopsis: Sensation of Movement explores the role of sensation in motor control, bodily self-recognition and sense of agency. The sensation of movement is dependent on a range of information received by the brain, from signalling in the peripheral sensory organs to the establishment of higher order goals. Through the integration of neuroscientific knowledge with psychological and philosophical perspectives, this book questions whether one type of information is more relevant for the ability to sense and control movement. Addressing conscious sensations of movement, experimental designs and measures, and the possible functions of proprioceptive and kinaesthetic information in motor control and bodily cognition, the book advocates the integration of neuroscientific knowledge and philosophical perspectives. With an awareness of the diverse ideas and theories from these distinct fields, the book brings together leading researchers to bridge these divides and lay the groundwork for future research. Of interest to both students and researchers of consciousness, Sensation of Movement will be essential reading for those researching motor control, multimodal perception, bodily self-recognition, and sense of agency. It aims to encourage the integration of multiple perspectives in order to arrive at new insights into how sensation of movement can be studied scientifically.

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