Abstract

The spatial-contrast-transfer function of the light-adapted retina is recorded at various eccentricities and the point spread function is evaluated. The estimate of receptive field size thus obtained is compared to that based on data recorded with the aid of a modified version of the Hermann—Hering grid. The order of magnitude of the estimate is found to be the same in either case and to increase from 30° to 60° nasal. However, the conspicuity of the Hermann—Hering illusion is found to decrease when the length of the bars exceeds a given value, which is presumably related to the outer diameter of the contrast detectors. This effect is tentatively ascribed to the coming into play of oblong-shaped receptive units.

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  1. G. Westheimer, J. Opt. Soc. Am. 52, 86 (1963); F. W. Campbell and D. G. Green, J. Physiol. (London) 181, 576 (1965).
  2. O. Bryngdahl, Pflüg. Arch. 280, 362 (1962); Vision Res. 6, 553 (1966).
  3. D. H. Kelly, J. Opt. Soc. Am. 50, 1115 (1960).
  4. G. Baumgartner, Pflüg. Arch. 272, 21 (1960).
  5. L. Spillmann and H. Kornhuber, Pflüg. Arch. 279, 5 (1964); R. Jung and L. Spillmann, in Early Experience and Visual Information Processing, edited by F. A. Young and D. B. Lindsey (Natl. Acad. Sci., Washington, D. C., 1970), p. 181; L. Spillmann, Pflüg. Arch. 326, 281 (1971); Exptl. Brain Res. 13, 547 (1971).
  6. L. Ronchi, Mod. Probl. Ophthalmol. 11, 47 (1972).
  7. L. Ronchi and G. Bottai, Atti Fond. Giorgio Ronchi Contrib. Ist. Naz. Ottica, 18, 47 (1963), L. Ronchi and G. Salvi, Atti Fond. Giorgio Ronchi Contrib. Ist. Naz. Ottica, 20, 192 (1965).
  8. W. H. Payne and D. E. Anderson, J. Opt. Soc. Am. 59, 229 (1969).
  9. C. T. White, J. Opt. Soc. Am. 50, 1116 (1960).
  10. G. Westheimer, J. Physiol. (London) 190, 139 (1967); J. M. Enoch and R. N. Sunga, Doc. Ophthalmol. 26, 215 (1969); D. Y. Teller and B. Lindsey, Vision Res. 10, 1045 (1970).
  11. M. H. Pirenne and J. Denton, Nature, 170, 1039 (1952); E. P. Hallett, Vision Res. 3, 9 (1963); W. Richards, Neuropsychologia, 5, 63 (1967); J. P. Thomas, G. J. Padilla, and D. L. Rourke, Vision Res. 9, 283 (1969).
  12. B. Julesz, in Information Processing in Sight Sensory Systems (Calif. Inst. of Technology, Pasadena, Calif., 1965), p. 81.
  13. D. H. Teller, J. Opt. Soc. Am. 59, 509 (1969).
  14. D. H. Hubel and T. N. Wiesel, J. Neurophysiol. 28, 229 (1965); J. Physiol. (London) 148, 574 (1959).

Anderson, D. E.

W. H. Payne and D. E. Anderson, J. Opt. Soc. Am. 59, 229 (1969).

Baumgartner, G.

G. Baumgartner, Pflüg. Arch. 272, 21 (1960).

Bottai, G.

L. Ronchi and G. Bottai, Atti Fond. Giorgio Ronchi Contrib. Ist. Naz. Ottica, 18, 47 (1963), L. Ronchi and G. Salvi, Atti Fond. Giorgio Ronchi Contrib. Ist. Naz. Ottica, 20, 192 (1965).

Bryngdahl, O.

O. Bryngdahl, Pflüg. Arch. 280, 362 (1962); Vision Res. 6, 553 (1966).

Denton, J.

M. H. Pirenne and J. Denton, Nature, 170, 1039 (1952); E. P. Hallett, Vision Res. 3, 9 (1963); W. Richards, Neuropsychologia, 5, 63 (1967); J. P. Thomas, G. J. Padilla, and D. L. Rourke, Vision Res. 9, 283 (1969).

Hubel, D. H.

D. H. Hubel and T. N. Wiesel, J. Neurophysiol. 28, 229 (1965); J. Physiol. (London) 148, 574 (1959).

Julesz, B.

B. Julesz, in Information Processing in Sight Sensory Systems (Calif. Inst. of Technology, Pasadena, Calif., 1965), p. 81.

Kelly, D. H.

D. H. Kelly, J. Opt. Soc. Am. 50, 1115 (1960).

Kornhuber, H.

L. Spillmann and H. Kornhuber, Pflüg. Arch. 279, 5 (1964); R. Jung and L. Spillmann, in Early Experience and Visual Information Processing, edited by F. A. Young and D. B. Lindsey (Natl. Acad. Sci., Washington, D. C., 1970), p. 181; L. Spillmann, Pflüg. Arch. 326, 281 (1971); Exptl. Brain Res. 13, 547 (1971).

Payne, W. H.

W. H. Payne and D. E. Anderson, J. Opt. Soc. Am. 59, 229 (1969).

Pirenne, M. H.

M. H. Pirenne and J. Denton, Nature, 170, 1039 (1952); E. P. Hallett, Vision Res. 3, 9 (1963); W. Richards, Neuropsychologia, 5, 63 (1967); J. P. Thomas, G. J. Padilla, and D. L. Rourke, Vision Res. 9, 283 (1969).

Ronchi, L.

L. Ronchi, Mod. Probl. Ophthalmol. 11, 47 (1972).

L. Ronchi and G. Bottai, Atti Fond. Giorgio Ronchi Contrib. Ist. Naz. Ottica, 18, 47 (1963), L. Ronchi and G. Salvi, Atti Fond. Giorgio Ronchi Contrib. Ist. Naz. Ottica, 20, 192 (1965).

Spillmann, L.

L. Spillmann and H. Kornhuber, Pflüg. Arch. 279, 5 (1964); R. Jung and L. Spillmann, in Early Experience and Visual Information Processing, edited by F. A. Young and D. B. Lindsey (Natl. Acad. Sci., Washington, D. C., 1970), p. 181; L. Spillmann, Pflüg. Arch. 326, 281 (1971); Exptl. Brain Res. 13, 547 (1971).

Teller, D. H.

D. H. Teller, J. Opt. Soc. Am. 59, 509 (1969).

Westheimer, G.

G. Westheimer, J. Opt. Soc. Am. 52, 86 (1963); F. W. Campbell and D. G. Green, J. Physiol. (London) 181, 576 (1965).

G. Westheimer, J. Physiol. (London) 190, 139 (1967); J. M. Enoch and R. N. Sunga, Doc. Ophthalmol. 26, 215 (1969); D. Y. Teller and B. Lindsey, Vision Res. 10, 1045 (1970).

White, C. T.

C. T. White, J. Opt. Soc. Am. 50, 1116 (1960).

Wiesel, T. N.

D. H. Hubel and T. N. Wiesel, J. Neurophysiol. 28, 229 (1965); J. Physiol. (London) 148, 574 (1959).

Other (14)

G. Westheimer, J. Opt. Soc. Am. 52, 86 (1963); F. W. Campbell and D. G. Green, J. Physiol. (London) 181, 576 (1965).

O. Bryngdahl, Pflüg. Arch. 280, 362 (1962); Vision Res. 6, 553 (1966).

D. H. Kelly, J. Opt. Soc. Am. 50, 1115 (1960).

G. Baumgartner, Pflüg. Arch. 272, 21 (1960).

L. Spillmann and H. Kornhuber, Pflüg. Arch. 279, 5 (1964); R. Jung and L. Spillmann, in Early Experience and Visual Information Processing, edited by F. A. Young and D. B. Lindsey (Natl. Acad. Sci., Washington, D. C., 1970), p. 181; L. Spillmann, Pflüg. Arch. 326, 281 (1971); Exptl. Brain Res. 13, 547 (1971).

L. Ronchi, Mod. Probl. Ophthalmol. 11, 47 (1972).

L. Ronchi and G. Bottai, Atti Fond. Giorgio Ronchi Contrib. Ist. Naz. Ottica, 18, 47 (1963), L. Ronchi and G. Salvi, Atti Fond. Giorgio Ronchi Contrib. Ist. Naz. Ottica, 20, 192 (1965).

W. H. Payne and D. E. Anderson, J. Opt. Soc. Am. 59, 229 (1969).

C. T. White, J. Opt. Soc. Am. 50, 1116 (1960).

G. Westheimer, J. Physiol. (London) 190, 139 (1967); J. M. Enoch and R. N. Sunga, Doc. Ophthalmol. 26, 215 (1969); D. Y. Teller and B. Lindsey, Vision Res. 10, 1045 (1970).

M. H. Pirenne and J. Denton, Nature, 170, 1039 (1952); E. P. Hallett, Vision Res. 3, 9 (1963); W. Richards, Neuropsychologia, 5, 63 (1967); J. P. Thomas, G. J. Padilla, and D. L. Rourke, Vision Res. 9, 283 (1969).

B. Julesz, in Information Processing in Sight Sensory Systems (Calif. Inst. of Technology, Pasadena, Calif., 1965), p. 81.

D. H. Teller, J. Opt. Soc. Am. 59, 509 (1969).

D. H. Hubel and T. N. Wiesel, J. Neurophysiol. 28, 229 (1965); J. Physiol. (London) 148, 574 (1959).

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