Abstract

In measurements of the probability of observation of peripherally observable test flashes it has been found disadvantageous to have special attention for the direction in which the flashes can be seen instead of general attention for the whole visual field.

© 1956 Optical Society of America

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References

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  1. J. P. Guilford, Psychometric Methods (McGraw-Hill Book Company, Inc., New York, 1936), p. 166.
  2. J. P. Guilford, see reference 1, p. 445.
  3. H. R. Blackwell, J. Opt. Soc. Am. 43, 456–464 (1953).
    [Crossref] [PubMed]
  4. H. R. Blackwell, J. Opt. Soc. Am. 42, 606–617 (1952).
    [Crossref] [PubMed]
  5. I. Langmuir and W. Westendorp, Physics 1, 273, see especially p. 284 (1931).
    [Crossref]
  6. J. B. de Boer, Philips Research Repts. 6, 224, see especially p. 226 (1951).
  7. M. A. Bouman, Docum. Ophthalm. 4, 23, see especially p. 50 (1950).
    [Crossref]
  8. H. A. van der Velden, Ophthalmologica 111, 321 (1946).
    [Crossref] [PubMed]

1953 (1)

1952 (1)

1951 (1)

J. B. de Boer, Philips Research Repts. 6, 224, see especially p. 226 (1951).

1950 (1)

M. A. Bouman, Docum. Ophthalm. 4, 23, see especially p. 50 (1950).
[Crossref]

1946 (1)

H. A. van der Velden, Ophthalmologica 111, 321 (1946).
[Crossref] [PubMed]

1931 (1)

I. Langmuir and W. Westendorp, Physics 1, 273, see especially p. 284 (1931).
[Crossref]

Blackwell, H. R.

Bouman, M. A.

M. A. Bouman, Docum. Ophthalm. 4, 23, see especially p. 50 (1950).
[Crossref]

de Boer, J. B.

J. B. de Boer, Philips Research Repts. 6, 224, see especially p. 226 (1951).

Guilford, J. P.

J. P. Guilford, Psychometric Methods (McGraw-Hill Book Company, Inc., New York, 1936), p. 166.

J. P. Guilford, see reference 1, p. 445.

Langmuir, I.

I. Langmuir and W. Westendorp, Physics 1, 273, see especially p. 284 (1931).
[Crossref]

van der Velden, H. A.

H. A. van der Velden, Ophthalmologica 111, 321 (1946).
[Crossref] [PubMed]

Westendorp, W.

I. Langmuir and W. Westendorp, Physics 1, 273, see especially p. 284 (1931).
[Crossref]

Docum. Ophthalm. (1)

M. A. Bouman, Docum. Ophthalm. 4, 23, see especially p. 50 (1950).
[Crossref]

J. Opt. Soc. Am. (2)

Ophthalmologica (1)

H. A. van der Velden, Ophthalmologica 111, 321 (1946).
[Crossref] [PubMed]

Philips Research Repts. (1)

J. B. de Boer, Philips Research Repts. 6, 224, see especially p. 226 (1951).

Physics (1)

I. Langmuir and W. Westendorp, Physics 1, 273, see especially p. 284 (1931).
[Crossref]

Other (2)

J. P. Guilford, Psychometric Methods (McGraw-Hill Book Company, Inc., New York, 1936), p. 166.

J. P. Guilford, see reference 1, p. 445.

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Figures (1)

Fig. 1
Fig. 1

Location of the fixation light F and the four test spots 1 to 4 on the screen in front of the observer. The line from the observer’s right eye to F was perpendicular to the screen.

Tables (1)

Tables Icon

Table I Geometric mean, MC, and standard deviation, sC, for a probability of observation of 25, 50, and 75%, respectively.

Equations (1)

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C = ( P - p ) / ( 1 - p ) ,