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Multisensory Control of Movement$
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Alain Berthoz

Print publication date: 1993

Print ISBN-13: 9780198547853

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780198547853.001.0001

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Application of the coherence scheme to the multisensory fusion problem

Application of the coherence scheme to the multisensory fusion problem

Chapter:
(p.485) 28 Application of the coherence scheme to the multisensory fusion problem
Source:
Multisensory Control of Movement
Author(s):

Jacques Droulez

Valérie Cornilleau-pélèl

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198547853.003.0234

This chapter is an attempt to provide a common conceptual and computational framework for neurophysiologists and roboticians who are faced, in spite of their different motivation, with the similar problem of combining several signals issued from sensors having various geometrical and dynamical properties. For animals and robots, motion is a fundamental source of information about their interaction with the environment. Animals (and some robots, now) have at their disposal a dedicated sensory system, devoted to the detection of their own 3D movement: the vestibular system. However, the vestibular organs fail to detect self-movement at low frequency and have to be complemented by other information sources such as vision, proprioception, or efferent copies of motor commands. The visual system is particularly useful for estimating the displacement and the 3D shape of other mobile objects, as well as the 3D structure of the environment. Many theoretical studies have been proposed to account for the ability of biological organisms to perceive 3D movement, or to build robots that are able to move and avoid unexpected obstacles. One of the central question in this context is the way in which the various signals are fused, and, more generally, how the 3D processing of individual sensors may dynamically interact.

Keywords:   three-dimensional movement, motor commands, proprioception, self-movement, vestibular system, sensory system

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