Haptic information stabilizes and destabilizes coordination dynamics

Kelso, J. A. Scott, Fink, Philip W., DeLaplain, Corey R. and Carson, Richard G. (2001) Haptic information stabilizes and destabilizes coordination dynamics. Royal Society of London. Proceedings. Biological Sciences, 268 1472: 1207-1213. doi:10.1098/rspb.2001.1620


Author Kelso, J. A. Scott
Fink, Philip W.
DeLaplain, Corey R.
Carson, Richard G.
Title Haptic information stabilizes and destabilizes coordination dynamics
Journal name Royal Society of London. Proceedings. Biological Sciences   Check publisher's open access policy
ISSN 0962-8452
Publication date 2001-06
Sub-type Article (original research)
DOI 10.1098/rspb.2001.1620
Volume 268
Issue 1472
Start page 1207
End page 1213
Total pages 7
Place of publication London
Publisher The Royal Society
Collection year 2001
Language eng
Subject C1
321403 Motor Control
730104 Nervous system and disorders
1103 Clinical Sciences
1701 Psychology
Abstract Goal-directed, coordinated movements in humans emerge from a variety of constraints that range from 'high-level' cognitive strategies based oil perception of the task to 'low-level' neuromuscular-skeletal factors such as differential contributions to coordination from flexor and extensor muscles. There has been a tendency in the literature to dichotomize these sources of constraint, favouring one or the other rather than recognizing and understanding their mutual interplay. In this experiment, subjects were required to coordinate rhythmic flexion and extension movements with an auditory metronome, the rate of which was systematically increased. When subjects started in extension on the beat of the metronome, there was a small tendency to switch to flexion at higher rates, but not vice versa. When subjects: were asked to contact a physical stop, the location of which was either coincident with or counterphase to the auditor) stimulus, two effects occurred. When haptic contact was coincident with sound, coordination was stabilized for both flexion and extension. When haptic contact was counterphase to the metronome, coordination was actually destabilized, with transitions occurring from both extension to flexion on the beat and from flexion to extension on the beat. These results reveal the complementary nature of strategic and neuromuscular factors in sensorimotor coordination. They also suggest the presence of a multimodal neural integration process-which is parametrizable by rate and context - in which intentional movement, touch and sound are bound into a single, coherent unit.
Keyword Biology
Coordination Dynamics
Neuromuscular-skeletal Constraints
Haptic Information
Stability
Transitions
Phase-transitions
Human Brain
Bimanual Coordination
Biological Coordination
Theoretical-model
Rhythmic Coordination
Critical Fluctuations
Hand Movements
Animal Gaits
Perception
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Human Movement and Nutrition Sciences Publications
 
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Created: Tue, 14 Aug 2007, 15:45:23 EST