摘要: The vertebrate retina receives efferent input from different parts of the central nervous system. Efferent fibers are thought to influence retinal information processing but their functional role is not well understood. One best-described retinopetal fiber systems in teleost retinae belongs terminal nerve complex. Gonadotropin-releasing hormone (GnRH) and molluscan cardioexcitatory tetrapeptide (FMRFamide)-containing ganglion form a dense plexus at border inner nuclear plexiform layer. Peptide-containing surround contact perikarya dopaminergic interplexiform cells retina. In vitro experiments demonstrated that exogenously supplied GnRH mediates effects on membrane potential morphology dendritic tips (spinules) cone horizontal cells. These can be specifically blocked by GnRH-antagonists, indicating release dopamine dopamine-dependent light adaptation neurons affected Recent data have shown olfactory has an impact physiology, its precise clear. complex one first for which sources fibers, cellular targets, several physiological, morphological, behavioral known. therefore model system analysis local influenced distinct projection.