Document Detail

Visual feedback to stabilize head position for fMRI.
MedLine Citation:
PMID:  10332888     Owner:  NLM     Status:  MEDLINE    
Head motion is a common cause of technical failure in functional magnetic resonance imaging. A simple visual alignment system has been developed to provide visual feedback to the subject about his or her head position. The subject is able to readjust his or her head position accurately during a study, should motion occur. This sighting system is incorporated into a visor that fits onto the commercial head coil. The accuracy of correcting head motion and activation maps obtained with this device are demonstrated. The cognitive workload of using the alignment system does not significantly alter the activation pattern associated with eye movement paradigms.
K R Thulborn
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine     Volume:  41     ISSN:  0740-3194     ISO Abbreviation:  Magn Reson Med     Publication Date:  1999 May 
Date Detail:
Created Date:  1999-06-25     Completed Date:  1999-06-25     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  8505245     Medline TA:  Magn Reson Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1039-43     Citation Subset:  IM; S    
Department of Radiology, MR Research Center, Presbyterian University Hospital, University of Pittsburgh Medical Center, Pennsylvania 15213-2582, USA.
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MeSH Terms
Biofeedback, Psychology / methods*
Brain / physiology
Cognition / physiology
Echo-Planar Imaging
Equipment Design
Eye Movements / physiology
Fixation, Ocular / physiology
Head / anatomy & histology*
Head Movements
Magnetic Resonance Imaging / instrumentation,  methods*
Saccades / physiology
Vision, Ocular*
Grant Support

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

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