Document Detail


Detecting postural responses to sinusoidal sensory inputs: a statistical approach.
MedLine Citation:
PMID:  15473199     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A common way for understanding sensory integration in postural control is to provide sinusoidal perturbations to the sensory systems involved in balance. However, not all subjects exhibit a response to the perturbation. Determining whether or not a response has occurred is usually done qualitatively, e.g., by visual inspection of the power spectrum. In this paper, we present the application of a statistical test for quantifying whether or not a postural sway response is present. The test uses an F-statistic for determining if there is significant power in postural sway data at the stimulus frequency. In order to describe the application of this method, 20 subjects viewed sinusoidal anterior-posterior (A-P) optic flow at 0.1 and 0.25 Hz, while their A-P head translation was measured. The test showed that significant postural responses were detected at the stimulus frequency in 12/20 subjects at 0.1 Hz and 13/20 subjects at 0.25 Hz.
Authors:
Patrick J Sparto; Jeffrey G Jasko; Patrick J Loughlin
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.; Validation Studies    
Journal Detail:
Title:  IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society     Volume:  12     ISSN:  1534-4320     ISO Abbreviation:  IEEE Trans Neural Syst Rehabil Eng     Publication Date:  2004 Sep 
Date Detail:
Created Date:  2004-10-11     Completed Date:  2004-11-30     Revised Date:  2014-09-19    
Medline Journal Info:
Nlm Unique ID:  101097023     Medline TA:  IEEE Trans Neural Syst Rehabil Eng     Country:  United States    
Other Details:
Languages:  eng     Pagination:  360-6     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Algorithms*
Diagnosis, Computer-Assisted / methods*
Female
Humans
Male
Models, Biological*
Models, Statistical
Movement / physiology*
Oscillometry / methods
Periodicity
Photic Stimulation / methods*
Physical Examination / methods*
Posture / physiology*
Grant Support
ID/Acronym/Agency:
K25 AG001049/AG/NIA NIH HHS; K25 AG001049-05/AG/NIA NIH HHS; K25-AG01049/AG/NIA NIH HHS; P30 DC005205/DC/NIDCD NIH HHS; P30-DC05205/DC/NIDCD NIH HHS; R01 DC004435/DC/NIDCD NIH HHS; R01-DC04435/DC/NIDCD NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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