Metabotropic glutamate receptors in vertebrate retina

  title={Metabotropic glutamate receptors in vertebrate retina},
  author={Urs Gerber},
  journal={Documenta Ophthalmologica},
  • U. Gerber
  • Published 2004
  • Biology
  • Documenta Ophthalmologica
A striking feature in visual information processing is the fact that the primary signaling elements, the rods and the cones, are hyperpolarized and thus inhibited by light, the physiological stimulus. Light effectively shuts down neurotransmitter release by the photoreceptors onto the second-order retinal neurons. It has long been recognized that a sign-inverting synapse utilizing a specialized receptor is required to translate the inhibitory photoreceptor response into an excitatory signal… 

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