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References

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  1. Gebhard, Quart. J. Exptl. Psychol. 7, 2 (1949).
  2. Gebhard, Science 121, 3136, 173 (1955).
  3. Gebhard, Duffy, Moubray, and Byham, J. Opt. Soc. Am. 46, 851 (1956).
    [Crossref]
  4. H. de Lange, Physica 18, 935 (1952).
    [Crossref]
  5. H. de Lange, J. Opt. Soc. Am. 44, 380 (1954).
    [Crossref]
  6. H. de Lange, Thesis, Delft (June, 1957).

1956 (1)

1955 (1)

Gebhard, Science 121, 3136, 173 (1955).

1954 (1)

1952 (1)

H. de Lange, Physica 18, 935 (1952).
[Crossref]

1949 (1)

Gebhard, Quart. J. Exptl. Psychol. 7, 2 (1949).

J. Opt. Soc. Am. (2)

Physica (1)

H. de Lange, Physica 18, 935 (1952).
[Crossref]

Quart. J. Exptl. Psychol. (1)

Gebhard, Quart. J. Exptl. Psychol. 7, 2 (1949).

Science (1)

Gebhard, Science 121, 3136, 173 (1955).

Other (1)

H. de Lange, Thesis, Delft (June, 1957).

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Figures (5)

Fig. 1
Fig. 1

Discrimination threshold areas at 1000, 100, 10, and 1 troland, approximately. Errors indicated are standard deviation. Modulation is expressed in percent of mean retinal illumination.

Fig. 2
Fig. 2

Discrimination threshold areas at 1000, 100, 10, and 1 troland, approximately. Errors indicated are standard deviation. Modulation is expressed in percents of mean retinal illumination.

Fig. 3
Fig. 3

Discrimination threshold areas at 1000, 100, 10, and 1 troland. Errors indicated are standard deviation. Modulation is expressed in percents of mean retinal illumination.

Fig. 4
Fig. 4

Discrimination threshold areas at 1000, 100, 10, and 1 troland, approximately. Errors indicated are standard deviation. Modulation is expressed in percents of mean retinal illumination.

Fig. 5
Fig. 5

Lines of equal apparent modulation at 1000 troland, approximately. Errors indicated are standard deviation.

Equations (2)

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L ( t ) = L 0 + M L 0 sin · 2 π f t
[ L ( t ) = L 0 + 1 2 L 0 cos · 2 π · 2 t sin · 2 π · 80 t ] .