Reconstruction of retinal horizontal cell responses by the ionic current model.
An ionic current model of the retinal horizontal cell is constructed. The horizontal cell models are interconnected by gap junctions to form a horizontal cell layer. The light response properties of the L-type horizontal cell are analyzed using this model. We demonstrate the functional role of each ionic current and the role of the feedback loop between cones and horizontal cells. The present study provides insight into the dynamic relationships between characteristics on the cellular level and on the multi-cellular level for producing the light response in horizontal cells.
Usui
S
S
Department of Information and Computer Sciences, Toyohashi University of Technology, Japan. usui@bpel.tutics.tut.ac.jp
Kamiyama
Y
Y
Ishii
H
H
Ikeno
H
H
D000200:Action Potentials; D017629:Gap Junctions / Q000502:physiology; D006801:Humans; D016623:Ion Pumps; D008433:Mathematics; D008564:Membrane Potentials; D008954:Models, Biological; D010775:Photic Stimulation; D012160:Retina / Q000502:physiology*; D013997:Time Factors
D016623:Ion Pumps