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Effect of Changes in the Chemical Environment of the Retina on the Two Components of the Early Receptor Potential

Naturevolume 214pages109110 (1967) | Download Citation

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Abstract

THE early receptor potential is a fast electrical response elicited from the vertebrate retina when it is presented with an intense flash stimulus1,2. The potential consists of two components of opposite polarity, each of which apparently depends on separate processes for its generation. This conclusion was based on the findings that the two components vary differently with temperature and that the earlier, positive component (positive peak) can be isolated by cooling3. In this communication we present evidence that the alteration of the chemical environment of the retina also results in independent changes in the amplitudes of the two components of the early receptor potential.

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References

  1. 1

    Brown, K. T., and Murakami, M., Nature, 201, 626 (1964).

  2. 2

    Cone, R. A., Nature, 204, 736 (1964).

  3. 3

    Pak, W. L., and Cone, R. A., Nature, 204, 836 (1964).

  4. 4

    Brindley, G. S., and Gardner-Medwin, A. R., J. Physiol., 182, 185 (1966).

  5. 5

    Pak, W. L., Cold Spring Harbor Symp. Quant. Biol., 30, 493 (1965).

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Author information

Affiliations

  1. Department of Biological Sciences, Purdue University, Lafayette, Indiana

    • WILLIAM L. PAK
    •  & VINCENT P. ROZZI
  2. Department of Physics, University of Chicago, Chicago, Illinois

    • THOMAS G. EBREY

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DOI

https://doi.org/10.1038/214109a0

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