Title :
The Effects of Variations of the Conducting Media Inhomogeneities on the Electroretinogram
Author :
Doslak, Michael J. ; Plonsey, Robert ; Thomas, Cecil W.
Author_Institution :
Ocular Motor Neurophysiology Laboratory, Veterans Administration Hospital
Abstract :
A mathematical model was developed to simulate the spatially varying ERG field at an arbitrary instant of time (e. g., the peak of the b-wave). The retina was depicted as a bioelectric source consisting of an axially symmetric double (or dipole) layer covering a little more than a hemisphere and having a spatially uniform strength. The passive volume conductor was represented in the model by electrically homogeneous regions possessing shapes and relative dimensions corresponding to the anatomy of the human eye.
Keywords :
Bioelectric phenomena; Conductivity; Conductors; Cornea; Electric potential; Lenses; Nonhomogeneous media; Nonuniform electric fields; Pathology; Retina; Animals; Electric Conductivity; Electrophysiology; Electroretinography; Models, Biological; Photic Stimulation; Rabbits; Retina;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1980.326712