Abstract
The II5 color mechanism was isolated in two observers with a 667 nm, 200 ms, 1 deg foveal test flash. Stiles's field displacement law and the law of field additivity were tested with increment thresholds upon monochromatic and bichromatic adapting fields. The data of both observers obey the displacement law and exhibit no systematic deviations from additivity. Our results cannot reject the hypothesis that the first log unit of adaptation observed under II5-isolation conditions is determined exclusively by the quantum catch rate of the long-wavelength-sensitive cones.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 71-81 |
| Number of pages | 11 |
| Journal | Journal of the Optical Society of America |
| Volume | 70 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 1980 |
| Externally published | Yes |
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ASJC Scopus subject areas
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Cite this
Stiles's II5 color mechanism : tests of field displacement and field additivity properties. / Sigel, C.; Pugh Jr, Edward N.
In: Journal of the Optical Society of America, Vol. 70, No. 1, 01.01.1980, p. 71-81.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Stiles's II5 color mechanism
T2 - tests of field displacement and field additivity properties.
AU - Sigel, C.
AU - Pugh Jr, Edward N
PY - 1980/1/1
Y1 - 1980/1/1
N2 - The II5 color mechanism was isolated in two observers with a 667 nm, 200 ms, 1 deg foveal test flash. Stiles's field displacement law and the law of field additivity were tested with increment thresholds upon monochromatic and bichromatic adapting fields. The data of both observers obey the displacement law and exhibit no systematic deviations from additivity. Our results cannot reject the hypothesis that the first log unit of adaptation observed under II5-isolation conditions is determined exclusively by the quantum catch rate of the long-wavelength-sensitive cones.
AB - The II5 color mechanism was isolated in two observers with a 667 nm, 200 ms, 1 deg foveal test flash. Stiles's field displacement law and the law of field additivity were tested with increment thresholds upon monochromatic and bichromatic adapting fields. The data of both observers obey the displacement law and exhibit no systematic deviations from additivity. Our results cannot reject the hypothesis that the first log unit of adaptation observed under II5-isolation conditions is determined exclusively by the quantum catch rate of the long-wavelength-sensitive cones.
UR - http://www.scopus.com/inward/record.url?scp=0018853649&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0018853649&partnerID=8YFLogxK
U2 - 10.1364/JOSA.70.000071
DO - 10.1364/JOSA.70.000071
M3 - Article
C2 - 7411265
AN - SCOPUS:0018853649
VL - 70
SP - 71
EP - 81
JO - Journal of the Optical Society of America
JF - Journal of the Optical Society of America
SN - 0030-3941
IS - 1
ER -