Abstract

The paper discloses the results of a series of tests carried out to evaluate the complexity of visual tasks for the purpose of specifying the fundamental principles for the standardization of lighting conditions. In addition to the parameters of the difficulty of visual tasks which are in current use in the practice of standardization, i.e., target dimensions, target contrast with the background, a certain number of additional characteristics are proposed and examined. The results of tests to evaluate the influence of these characteristics on the complexity of the visual task are reported. The relationship between the difficulties of visual tasks performed at different working levels of the visual analyzer is considered. It is shown that the degree of influence of external parameters on the complexity of a visual task depends to a great extent on the working conditions. The experimental data obtained result in certain conclusions and propositions regarding further investigations of the influence of qualitative and quantitative lighting characteristics on the visual capacity.

© 1967 Optical Society of America

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References

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  1. L. Schneider, Lichttechnik No. 6u, 7 (1963).
  2. L. A. Raizelsky, Svetotekh. No. 10 (1964).
  3. A. S. Shaikevich, Svetotekh. No. 5 (1966).
  4. P. I. Khoroshilov, Svetotekh. No. 10 (1966).
  5. C. I. Kroll, G. A. Tishenko, Svetotekh. No. 10 (1964).
  6. M. M. Yepaneshnikov, T. N. Sidorova, Svetotekh. No. 10 (1964).
  7. C. I. Kroll, V. V. Meshkov, Svetotekh. No. 12 (1965).
  8. V. A. Ilyanok, V. G. Samsonova, Svetotekh. No. 5 (1963).
  9. C. I. Kroll, Svetotekh. No. 6 (1963).
  10. F. M. Chernilovskaya, Izd. Med. (1964).
  11. A. B. Matveev, Svetotekh. No. 1 (1963).
  12. I. Kgek, E. Foitova, Svetotekh. No. 10 (1964).
  13. V. D. Glezer, Izd. Nauka (1966).
  14. A. N. Leontiev, Ed., Engineer Psychology, (Izd. Mesc. Gos. Univ. (1964).
  15. M. A. Faermark, Svetotekh. No. 11 (1964).
  16. M. A. Faermark, Svetotekh. No. 8 (1965).
  17. M. A. Faermark, Svetotekh. (in press).
  18. M. A. Faermark, Physiol. Optika (in press).
  19. M. A. Faermark, Svetotekh. No. 5 (1966).
  20. M. A. Faermark, Svetotekh. (in press.)

1966 (4)

A. S. Shaikevich, Svetotekh. No. 5 (1966).

P. I. Khoroshilov, Svetotekh. No. 10 (1966).

V. D. Glezer, Izd. Nauka (1966).

M. A. Faermark, Svetotekh. No. 5 (1966).

1965 (2)

M. A. Faermark, Svetotekh. No. 8 (1965).

C. I. Kroll, V. V. Meshkov, Svetotekh. No. 12 (1965).

1964 (6)

L. A. Raizelsky, Svetotekh. No. 10 (1964).

C. I. Kroll, G. A. Tishenko, Svetotekh. No. 10 (1964).

M. M. Yepaneshnikov, T. N. Sidorova, Svetotekh. No. 10 (1964).

I. Kgek, E. Foitova, Svetotekh. No. 10 (1964).

M. A. Faermark, Svetotekh. No. 11 (1964).

F. M. Chernilovskaya, Izd. Med. (1964).

1963 (4)

A. B. Matveev, Svetotekh. No. 1 (1963).

L. Schneider, Lichttechnik No. 6u, 7 (1963).

V. A. Ilyanok, V. G. Samsonova, Svetotekh. No. 5 (1963).

C. I. Kroll, Svetotekh. No. 6 (1963).

Chernilovskaya, F. M.

F. M. Chernilovskaya, Izd. Med. (1964).

Faermark, M. A.

M. A. Faermark, Svetotekh. No. 5 (1966).

M. A. Faermark, Svetotekh. No. 8 (1965).

M. A. Faermark, Svetotekh. No. 11 (1964).

M. A. Faermark, Svetotekh. (in press.)

M. A. Faermark, Svetotekh. (in press).

M. A. Faermark, Physiol. Optika (in press).

Foitova, E.

I. Kgek, E. Foitova, Svetotekh. No. 10 (1964).

Glezer, V. D.

V. D. Glezer, Izd. Nauka (1966).

Ilyanok, V. A.

V. A. Ilyanok, V. G. Samsonova, Svetotekh. No. 5 (1963).

Kgek, I.

I. Kgek, E. Foitova, Svetotekh. No. 10 (1964).

Khoroshilov, P. I.

P. I. Khoroshilov, Svetotekh. No. 10 (1966).

Kroll, C. I.

C. I. Kroll, V. V. Meshkov, Svetotekh. No. 12 (1965).

C. I. Kroll, G. A. Tishenko, Svetotekh. No. 10 (1964).

C. I. Kroll, Svetotekh. No. 6 (1963).

Matveev, A. B.

A. B. Matveev, Svetotekh. No. 1 (1963).

Meshkov, V. V.

C. I. Kroll, V. V. Meshkov, Svetotekh. No. 12 (1965).

Raizelsky, L. A.

L. A. Raizelsky, Svetotekh. No. 10 (1964).

Samsonova, V. G.

V. A. Ilyanok, V. G. Samsonova, Svetotekh. No. 5 (1963).

Schneider, L.

L. Schneider, Lichttechnik No. 6u, 7 (1963).

Shaikevich, A. S.

A. S. Shaikevich, Svetotekh. No. 5 (1966).

Sidorova, T. N.

M. M. Yepaneshnikov, T. N. Sidorova, Svetotekh. No. 10 (1964).

Tishenko, G. A.

C. I. Kroll, G. A. Tishenko, Svetotekh. No. 10 (1964).

Yepaneshnikov, M. M.

M. M. Yepaneshnikov, T. N. Sidorova, Svetotekh. No. 10 (1964).

Izd. Med. (1)

F. M. Chernilovskaya, Izd. Med. (1964).

Izd. Nauka (1)

V. D. Glezer, Izd. Nauka (1966).

Lichttechnik (1)

L. Schneider, Lichttechnik No. 6u, 7 (1963).

Svetotekh. (13)

L. A. Raizelsky, Svetotekh. No. 10 (1964).

A. S. Shaikevich, Svetotekh. No. 5 (1966).

P. I. Khoroshilov, Svetotekh. No. 10 (1966).

C. I. Kroll, G. A. Tishenko, Svetotekh. No. 10 (1964).

M. M. Yepaneshnikov, T. N. Sidorova, Svetotekh. No. 10 (1964).

C. I. Kroll, V. V. Meshkov, Svetotekh. No. 12 (1965).

V. A. Ilyanok, V. G. Samsonova, Svetotekh. No. 5 (1963).

C. I. Kroll, Svetotekh. No. 6 (1963).

A. B. Matveev, Svetotekh. No. 1 (1963).

I. Kgek, E. Foitova, Svetotekh. No. 10 (1964).

M. A. Faermark, Svetotekh. No. 11 (1964).

M. A. Faermark, Svetotekh. No. 8 (1965).

M. A. Faermark, Svetotekh. No. 5 (1966).

Other (4)

M. A. Faermark, Svetotekh. (in press.)

M. A. Faermark, Svetotekh. (in press).

M. A. Faermark, Physiol. Optika (in press).

A. N. Leontiev, Ed., Engineer Psychology, (Izd. Mesc. Gos. Univ. (1964).

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Figures (3)

Fig. 1
Fig. 1

Targets used in trials.

Fig. 2
Fig. 2

Dependence of correct shape detection probability on the time of exposition with different target angular dimensions: τ = time of exposition (msec); p = probability of the correct shape detection; α = disk angular diam in min of arc.

Fig. 3
Fig. 3

Dependence of correct shape detection probability on the time of exposition with different target contrasts with the background: τ = time of exposition (msec); p = probability of correct shape detection; K = target contrast with the background.

Tables (10)

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Table I The Dependence of the Visual Task Complexity (Time of Detection) on the Degree of Resemblance of the Shapes Being Detected for the Targets Equal in Areas to the Disk of α = 4′ Angular Dimension with K = 0.68

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Table II The Dependence of the Visual Task Complexity (Time of Detection) on the Degree of Resemblance of the Shapes Being Detected for the Targets Equal in Areas to the Disk of α = 20′ Angular Dimension with K = 0.68

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Table III The Change of the Relative Rate of Shape Detection Against the Degree of Resemblance of the Target Being Detected When Varying the Test Angular Dimensions (in Each Case Its Own Absolute Rate of Target Detection in 1–2 Pair is Taken for the Unit)

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Table IV The Dependence of the Visual Task Complexity (Time of Detection) on the Degree of Resemblance of the Shapes Being Detected for the Targets Equal in Areas to the Disk of α = 20′ Angular Dimension with K = 0.94

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Table V The Change of the Relative Rate of Shape Detection Against the Degree of Resemblance of the Targets Being Detected When Varying the Contrast of the Target with the Background (in Each Case Its Absolute Time of Target Detection in 1–2 Pair is Taken for the Unit)

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Table VI Comparison of the Complexity of the Visual Tasks on Revelation and Detection

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Table VII Comparison of Time of Detection and That of Revelation with Varying Target Angular Dimension

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Table VIII Comparison of the Time of Detection and That of Revelation when Varying the Target Contrast with the Background

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Table IX The Influence of Contrast Change on the Complexity of Visual Detection Under Strain Work Conditions

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Table X Comparison of Contrast Effect on the Complexity of Visual Detection Under Free and Strain Work Conditions

Equations (3)

Equations on this page are rendered with MathJax. Learn more.

Δ ρ = C Δ log B ,
τ 1 = K log 2 n ,
τ 2 = q i = 1 i = n p i log 2 p i ,

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