Letter | Published:

Differences in the kinetics of rod and cone synaptic transmission

Nature volume 296, pages 862864 (29 April 1982) | Download Citation

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Abstract

Photoreceptors of the vertebrate retina hyperpolarize in response to light. The hyperpolarization elicited by a brief flash is approximately ten times slower in rods than in cones of the same retina1. We have examined the amplification and temporal properties of synaptic transfer of rod and cone signals to a common postsynaptic element, the horizontal cell. We find that the kinetics of signal transfer at these chemical synapses parallels the speed of the light-evoked signals themselves.

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Author information

Author notes

    • Julie L. Schnapf

    Present address: Department of Neurobiology, Sherman Fairchild Science Building, Stanford University School of Medicine, Stanford, California 94305, USA.

Affiliations

  1. Departments of Ophthalmology and Physiology, University of California, San Francisco, California 94143, USA

    • Julie L. Schnapf
    •  & David R. Copenhagen

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Received

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DOI

https://doi.org/10.1038/296862a0

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