Abstract
1. Multiple nerve fibers and their convergence upon recipient cells is a characteristic feature of neural systems. We have investigated the advantages of such an organization in the transmission of neural information, and have taken as an example, the parallel channels of the optic nerve and their convergence at the geniculate level. 2. Electrophysiological recordings from the optic fibers of the cat are presented which demonstrate a complementary behavior of on and off retinal cells. This complementary difference is found to have a particular significance in the context of multiple channel information transmission. 3. Neither electrophysiological nor anatomical methods have been able to clarify the nature of retinal fiber connections to individual geniculate cells. We have analyzed the various connection possibilities from the standpoint of optimal information transmission by multiple channels. Distinct advantages regarding signal to distortion power ratio and linear range extention are available when on and off retinal cells both converge upon an individual recipient geniculate cell center.
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