Title :
Effect of Inhomogeneities on Surface Signals Coming from a Cerebral Current-Dipole Source
Author :
Schneider, Michel
Author_Institution :
Département de Mathématiques Appliquées, Faculté des Sciences, 63-Aubiére, France.
Abstract :
A three-sphere model is used to investigate the effects of inhomogeneities introduced by the scalp and the skull on the apparent location and magnitude of a current dipole representing local activity in the brain. The magnitude of the dipole is found to decrease by a proportion of 40 percent, whereas the location of the dipole appears 35 percent more centric.
Keywords :
Brain modeling; Conductivity; Electrocardiography; Electroencephalography; Fault location; Humans; Local activities; Scalp; Skull; Surface discharges; Brain; Electric Conductivity; Electroencephalography; Humans; Mathematics; Models, Biological; Scalp; Skull;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1974.324363
