Abstract

Accuracy of localization of the radial position of a single stimulus was determined for various luminance-exposure duration combinations. Localization accuracy, provided the stimulus is seen, is independent of luminance and duration, but varies with the radial position of the stimulus. The results are discussed in terms of events critical to localization accuracy and it is concluded that the magnitude of photochemical events in the end organs does not limit localization accuracy for supraliminal stimuli.

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  1. C. H. Graham and R. Margaria, Am. J. Physiol. 113, 299 (1936).
  2. H. W. Karn, J. Gen. Psychol. 14, 360 (1936).
  3. E. Baumgardt, Rev. opt. 28, 661 (1949).
  4. G. Long, J. Opt. Soc. Am. 41, 743 (1951).
  5. C. H. Graham and E. H. Kemp, J. Gen. Physiol. 21, 635 (1938).
  6. M. Keller, J. Exptl. Psychol. 28, 407 (1941).
  7. C. H. Graham and C. Cook, Am. J. Psychol. 49, 654 (1937).
  8. J. I. Niven and R. H. Brown, J. Opt. Soc. Am. 34, 738 (1944).
  9. R. H. Brown, Naval Research Laboratory, Report 4372 (1954).
  10. W. S. Hunter and M. Sigler, J. Exptl. Psychol. 26, 160 (1940).
  11. H. K. Hartline, J. Cellular Comp. Physiol. 5, 229 (1934).
  12. C. H. Graham, Paychol. Rev. 57, 108 (1950).
  13. H. Leibowitz, J. Opt. Soc. Am. 43, 902 (1953).
  14. Psychological Research Summary Report 1946–1952, Port Washington, New York; Special Devices Center, U. S. Navy (1953).

Baumgardt, E.

E. Baumgardt, Rev. opt. 28, 661 (1949).

Brown, R. H.

R. H. Brown, Naval Research Laboratory, Report 4372 (1954).

J. I. Niven and R. H. Brown, J. Opt. Soc. Am. 34, 738 (1944).

Cook, C.

C. H. Graham and C. Cook, Am. J. Psychol. 49, 654 (1937).

Graham, C. H.

C. H. Graham and C. Cook, Am. J. Psychol. 49, 654 (1937).

C. H. Graham, Paychol. Rev. 57, 108 (1950).

C. H. Graham and E. H. Kemp, J. Gen. Physiol. 21, 635 (1938).

C. H. Graham and R. Margaria, Am. J. Physiol. 113, 299 (1936).

Hartline, H. K.

H. K. Hartline, J. Cellular Comp. Physiol. 5, 229 (1934).

Hunter, W. S.

W. S. Hunter and M. Sigler, J. Exptl. Psychol. 26, 160 (1940).

Karn, H. W.

H. W. Karn, J. Gen. Psychol. 14, 360 (1936).

Keller, M.

M. Keller, J. Exptl. Psychol. 28, 407 (1941).

Kemp, E. H.

C. H. Graham and E. H. Kemp, J. Gen. Physiol. 21, 635 (1938).

Leibowitz, H.

H. Leibowitz, J. Opt. Soc. Am. 43, 902 (1953).

Long, G.

G. Long, J. Opt. Soc. Am. 41, 743 (1951).

Margaria, R.

C. H. Graham and R. Margaria, Am. J. Physiol. 113, 299 (1936).

Niven, J. I.

J. I. Niven and R. H. Brown, J. Opt. Soc. Am. 34, 738 (1944).

Sigler, M.

W. S. Hunter and M. Sigler, J. Exptl. Psychol. 26, 160 (1940).

Other (14)

C. H. Graham and R. Margaria, Am. J. Physiol. 113, 299 (1936).

H. W. Karn, J. Gen. Psychol. 14, 360 (1936).

E. Baumgardt, Rev. opt. 28, 661 (1949).

G. Long, J. Opt. Soc. Am. 41, 743 (1951).

C. H. Graham and E. H. Kemp, J. Gen. Physiol. 21, 635 (1938).

M. Keller, J. Exptl. Psychol. 28, 407 (1941).

C. H. Graham and C. Cook, Am. J. Psychol. 49, 654 (1937).

J. I. Niven and R. H. Brown, J. Opt. Soc. Am. 34, 738 (1944).

R. H. Brown, Naval Research Laboratory, Report 4372 (1954).

W. S. Hunter and M. Sigler, J. Exptl. Psychol. 26, 160 (1940).

H. K. Hartline, J. Cellular Comp. Physiol. 5, 229 (1934).

C. H. Graham, Paychol. Rev. 57, 108 (1950).

H. Leibowitz, J. Opt. Soc. Am. 43, 902 (1953).

Psychological Research Summary Report 1946–1952, Port Washington, New York; Special Devices Center, U. S. Navy (1953).

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