Document Detail

Application of virtual reality graphics in assessment of concussion.
MedLine Citation:
PMID:  16640477     Owner:  NLM     Status:  MEDLINE    
Abnormal balance in individuals suffering from traumatic brain injury (TBI) has been documented in numerous recent studies. However, specific mechanisms causing balance deficits have not been systematically examined. This paper demonstrated the destabilizing effect of visual field motion, induced by virtual reality graphics in concussed individuals but not in normal controls. Fifty five student-athletes at risk for concussion participated in this study prior to injury and 10 of these subjects who suffered MTBI were tested again on day 3, day 10, and day 30 after the incident. Postural responses to visual field motion were recorded using a virtual reality (VR) environment in conjunction with balance (AMTI force plate) and motion tracking (Flock of Birds) technologies. Two experimental conditions were introduced where subjects passively viewed VR scenes or actively manipulated the visual field motion. Long-lasting destabilizing effects of visual field motion were revealed, although subjects were asymptomatic when standard balance tests were introduced. The findings demonstrate that advanced VR technology may detect residual symptoms of concussion at least 30 days post-injury.
Semyon Slobounov; Elena Slobounov; Karl Newell
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article    
Journal Detail:
Title:  Cyberpsychology & behavior : the impact of the Internet, multimedia and virtual reality on behavior and society     Volume:  9     ISSN:  1094-9313     ISO Abbreviation:  Cyberpsychol Behav     Publication Date:  2006 Apr 
Date Detail:
Created Date:  2006-04-27     Completed Date:  2006-10-12     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9804397     Medline TA:  Cyberpsychol Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  188-91     Citation Subset:  IM    
Department of Kinesiology, University, University Park, Pennsylvania, USA.
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MeSH Terms
Brain Concussion / diagnosis*
Computer Graphics*
Computer Simulation*
Diagnosis, Computer-Assisted / instrumentation,  methods
Motion Perception / physiology*
Photic Stimulation / instrumentation,  methods
Postural Balance / physiology*
User-Computer Interface*
Visual Fields / physiology

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

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