5 groups of human Ss were exposed to a chromatic (red) Ganzfeld. In one condition the Ganzfeld was completely homogeneous; the fields for the remaining groups each contained an unfocussable dot of varying size. The dependent variable was latency of color disappearance (to a specified criterion). Excluding the results of the homogeneous group, adaptation time increased as a linear function of size of dot. With the addition of the homogeneous group, the relationship became nonmonotonic, adaptation time for this group being greater than or equal to that of all but the group exposed to the largest dot.
Get full access to this article
View all access options for this article.
References
1.
AvantL. L.Vision in theGanzfeld. Psychological Bulletin, 1965, 64, 246–258.
2.
CohenW.Comparisons of homogeneous Ganzfelds with Ganzfelds containing simple figures. Dissertation Abstracts, 1956, 16, 1510–1511.
3.
CohenW.Spatial and textural characteristics of theGanzfeld. American Journal of Psychology, 1957, 70, 403–410.
4.
CohenW.Color perception in the chromaticGanzfeld. American Journal of Psychology, 1958, 71, 390–394.
5.
CohenW.Form recognition, spatial orientation, perception of movement in the uniform visual field. In MorrisA.HorneE. P. (Eds.), Visual search technique. (Pub. 712)Washington: National Academy of Science—National Research Council, 1960. Pp. 119–123.
6.
CornsweetT. N.Visual perception. New York: Academic Press, 1970.
7.
DoesschateG. T.Vision in an empty field. Psychological Abstracts, 1961, 35, 565.
8.
GibsonJ. J.WaddellD.Homogeneous retinal stimulation and visual perception. American Journal of Psychology, 1952, 65, 263–270.
9.
GrandageA.Orthogonal coefficients for unequal intervals. Biometrics, 1958, 14, 287–289.
10.
HochbergJ. E.TriebelW.SeamanG.Color adaptation under conditions of homogeneous visual stimulation (Ganzfeld). Journal of Experimental Psychology, 1951, 44, 153–159.
11.
KatzD.The world of color. London: Kegan Paul, 1935.
12.
KoffkaK.Principles of Gestalt psychology. New York: Harcourt Brace, 1935.
13.
MetzgerW.Öptische Untersuchungen am Ganzfeld: II. Zur Phanomenologie des homogenen Ganzfelds. Psychologische Forschung, 1930, 13, 6–29.
14.
PritchardR. M.HeronW.HebbD. O.Visual perception approached by the method of stabilized images. Canadian Journal of Psychology, 1960, 14, 67–77.
15.
SippolaB. C.DevezinA. A.Differential color adaptation in the Ganzfeld. Proceedings of the Louisiana Academy of Science, 1969, 32, 144–149.
16.
WeintraubD. J.Successive contrast involving luminance and purity alterations of theGanzfeld. Journal of Experimental Psychology, 1964, 68, 555–562.
