Title :
Functional correlates with left-right asymmetry of visual evoked potentials in stroke patients-modeling and experimental results
Author :
Bar, L. ; Ring, H. ; Glass, I. ; Rosenfeld, M. ; Abboud, Shimon
Author_Institution :
Dept. of Bio-Med. Eng., Tel Aviv Univ., Israel
Abstract :
The correlation between the FIM (Functional Independence Measure) on admission and the left-right scalp potential amplitude was studied in post-stroke patients, using flash Visual Evoked Potential (VEP) stimulation and theoretical model of the head. It was found that left-right asymmetry of the scalp VEP may be useful indices for rehabilitation in patients after brain damage. The modeling study shows that left-right asymmetry of the scalp VEP in patients after brain damage may be a result of changes in the conductivity of the damage region.
Keywords :
electroencephalography; physiological models; visual evoked potentials; brain damage; damage region conductivity; flash VEP stimulation; functional independence measure; left-right asymmetry; left-right scalp potential amplitude; post-stroke patients; rehabilitation; scalp VEP; stroke patients; theoretical head model; visual evoked potential simulation; visual evoked potentials; Brain modeling; Computed tomography; Conductivity; Conductors; Electrodes; Electroencephalography; Equations; Finite volume methods; Magnetic heads; Scalp;
Conference_Titel :
Electrical and Electronics Engineers in Israel, 1995., Eighteenth Convention of
Conference_Location :
Tel Aviv, Israel
Print_ISBN :
0-7803-2498-6
DOI :
10.1109/EEIS.1995.513772
