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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 56, Iss. 11 — Nov. 1, 1966
  • pp: 1628–1632

Frequency Doubling in Visual Responses

D. H. KELLY  »View Author Affiliations


JOSA, Vol. 56, Issue 11, pp. 1628-1632 (1966)
http://dx.doi.org/10.1364/JOSA.56.001628


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Abstract

This paper reports an unexpected visual phenomenon. When a wide, photopic stimulus field is sinusoidally modulated in both space and time, over a certain frequency range the apparent spatial frequency of the stimulus is doubled. In its original form, the (deLange) flicker-fusion model which has been accepted by the author and others cannot account for this result. But it can be explained by assuming that there is a second (low-pass) filtering operation which follows the nonlinear (brightness) response of the visual system, rather than preceding it. If this hypothesis is correct, then the frequency-doubling effect is the result of neural mechanisms which are more central than the locus of flicker fusion.

Citation
D. H. KELLY, "Frequency Doubling in Visual Responses," J. Opt. Soc. Am. 56, 1628-1632 (1966)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-56-11-1628


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References

  1. H. deLange, thesis, Technical University, Delft, Holland (1957).
  2. H. deLange, J. Opt. Soc. Am. 48, 777 (1958).
  3. D. H. Kelly, J. Opt. Soc. Am. 51, 422 (1961).
  4. O. H. Schade, Sr., J. Opt. Soc. Am. 46, 721 (1956).
  5. D. G. Green and F. W. Campbell, J. Opt. Soc. Am. 55, 1154 (1965).
  6. D. H. Kelly, J. Opt. Soc. Am. 50, 1115 (1960).
  7. Final Technical Report on Contract No. DA-44-009-AMC-453 (T), 27 May 1966 (Vidya Report No. 221).
  8. J. G. Robson (private communication).
  9. D. H. Kelly, M. E. Lynch, and D. S. Ross, J. Opt. Soc. Am. 48, 858 (1958).
  10. J. Levinson and L. D. Harmon, Kybernetic 1, 107 (1961).
  11. D. H. Kelly, J. Opt. Soc. Am. 51, 747 (1961).
  12. D. H. Kelly, Doc. Ophthalmol. 18, 16 (1964).

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