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Distortion of Visual Space as Inappropriate Constancy Scaling

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  1. 1

    Boring, E. G., Sensation and Perception in the History of Experimental Psychology (New York, 1942).

    Google Scholar 

  2. 2

    Woodworth, R. S., Experimental Psychology (Holt, New York, 1938).

    Google Scholar 

  3. 3

    Pritchard, R. M., Quart. J. Exp. Psychol., 10, 2, 77 (1958).

    Article  Google Scholar 

  4. 4

    Müller-Lyer, F. C., Z. Psychol., 9, 1; 10, 421 (1896).

    Google Scholar 

  5. 5

    Thouless, R. H., Brit. J. Psychol., 21, 339 (1931); 22, 1 (1931); 22, 216 (1932).

    Google Scholar 

  6. 6

    Vernon, M. D., A Further Study of Visual Perception (Camb. Univ. Press, 1954).

    Google Scholar 

  7. 7

    Tausch, R., Psychologische Forschung, 24, 299 (1954).

    Google Scholar 

  8. 8

    Emmert, E., Klin. Mbl. Augenheilk., 19, 443 (1881).

    Google Scholar 

  9. 9

    Gregory, R. L., Wallace, J. G., and Campbell, F. W., Quart. J. Exp. Psychol., 11, 1, 54 (1959).

    Article  Google Scholar 

  10. 10

    Anstis, S. M., Shopland, C. D., and Gregory, R. L., Nature, 191, 416 (1961).

    ADS  CAS  Article  Google Scholar 

  11. 11

    Shopland, C. D., and Gregory, R. L., Quart. J. Exp. Psychol. (in the press).

  12. 12

    Humphrey, G. (personal communication).

  13. 13

    Segall, M. H., and Campbell, D. T., Cultural Differences in the Perception of Geometric Illusions (unpublished monograph, State Univ. of Iowa and Northwestern Univ., 1962).

    Google Scholar 

  14. 14

    Segall, M. H., Campbell, D. T., and Herskovitz, M. J., Science, 139, 769 (1963).

    ADS  CAS  Article  Google Scholar 

  15. 15

    Gregory, R. L., and Wallace, J. G., Recovery from Early Blindness. Exp. Psychol Soc. Mon., 2 (Heffer, Cambridge, 1963).

    Google Scholar 

  16. 16

    Kohler, W., and Wallach, H., Proc. Amer. Phil. Soc., 88, 269 (1944).

    Google Scholar 

  17. 17

    Osgood, C. E., and Heyer, A. W., Psychol. Rev., 59, 98 (1951).

    Article  Google Scholar 

  18. 18

    Hubel, D. H., and Wiesel, T. N., J. Physiol., 160, 106 (1962).

    CAS  Article  Google Scholar 

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GREGORY, R. Distortion of Visual Space as Inappropriate Constancy Scaling. Nature 199, 678–680 (1963).

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