5.00
Hdl Handle:
http://hdl.handle.net/10545/335867
Title:
Mechanisms of interpersonal sway synchrony and stability
Authors:
Reynolds, Raymond Francis; Osler, Callum J.
Abstract:
Here we explain the neural and mechanical mechanisms responsible for synchronizing sway and improving postural control during physical contact with another standing person. Postural control processes were modelled using an inverted pendulum under continuous feedback control. Interpersonal interactions were simulated either by coupling the sensory feedback loops or by physically coupling the pendulums with a damped spring. These simulations precisely recreated the timing and magnitude of sway interactions observed empirically. Effects of firmly grasping another person's shoulder were explained entirely by the mechanical linkage. This contrasted with light touch and/or visual contact, which were explained by a sensory weighting phenomenon; each person's estimate of upright was based on a weighted combination of veridical sensory feedback combined with a small contribution from their partner. Under these circumstances, the model predicted reductions in sway even without the need to distinguish between self and partner motion. Our findings explain the seemingly paradoxical observation that touching a swaying person can improve postural control.
Affiliation:
University of Birmingham; University of Derby
Citation:
Reynolds, R. F., Osler, C. J (2014) 'Mechanisms of interpersonal sway synchrony and stability', Journal of The Royal Society Interface, 11 (20140751), pp. 1-11
Publisher:
The Royal Society
Journal:
Journal of The Royal Society Interface
Issue Date:
22-Oct-2014
URI:
http://hdl.handle.net/10545/335867
DOI:
10.1098/rsif.2014.0751
Additional Links:
http://rsif.royalsocietypublishing.org/cgi/doi/10.1098/rsif.2014.0751
Type:
Article
Language:
en
ISSN:
1742-5689
EISSN:
1742-5662
Sponsors:
This work was supported by two BBSRC grants (BB/100579X/1 and an Industry Interchange Award).
Appears in Collections:
Biological Sciences Research Group

Full metadata record

DC FieldValue Language
dc.contributor.authorReynolds, Raymond Francisen
dc.contributor.authorOsler, Callum J.en
dc.date.accessioned2014-11-21T09:36:47Zen
dc.date.available2014-11-21T09:36:47Zen
dc.date.issued2014-10-22en
dc.identifier.citationReynolds, R. F., Osler, C. J (2014) 'Mechanisms of interpersonal sway synchrony and stability', Journal of The Royal Society Interface, 11 (20140751), pp. 1-11en
dc.identifier.issn1742-5689en
dc.identifier.doi10.1098/rsif.2014.0751en
dc.identifier.urihttp://hdl.handle.net/10545/335867en
dc.description.abstractHere we explain the neural and mechanical mechanisms responsible for synchronizing sway and improving postural control during physical contact with another standing person. Postural control processes were modelled using an inverted pendulum under continuous feedback control. Interpersonal interactions were simulated either by coupling the sensory feedback loops or by physically coupling the pendulums with a damped spring. These simulations precisely recreated the timing and magnitude of sway interactions observed empirically. Effects of firmly grasping another person's shoulder were explained entirely by the mechanical linkage. This contrasted with light touch and/or visual contact, which were explained by a sensory weighting phenomenon; each person's estimate of upright was based on a weighted combination of veridical sensory feedback combined with a small contribution from their partner. Under these circumstances, the model predicted reductions in sway even without the need to distinguish between self and partner motion. Our findings explain the seemingly paradoxical observation that touching a swaying person can improve postural control.en
dc.description.sponsorshipThis work was supported by two BBSRC grants (BB/100579X/1 and an Industry Interchange Award).en
dc.language.isoenen
dc.publisherThe Royal Societyen
dc.relation.urlhttp://rsif.royalsocietypublishing.org/cgi/doi/10.1098/rsif.2014.0751en
dc.rightsArchived with thanks to Journal of The Royal Society Interfaceen
dc.subjectPostureen
dc.subjectInterpersonalen
dc.subjectFeedback modelen
dc.titleMechanisms of interpersonal sway synchrony and stabilityen
dc.typeArticleen
dc.identifier.eissn1742-5662en
dc.contributor.departmentUniversity of Birminghamen
dc.contributor.departmentUniversity of Derbyen
dc.identifier.journalJournal of The Royal Society Interfaceen
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