Excerpt from On the After-Images of Subliminally Colored Stimuli
Again, in 1908, in a continuation of her former study, Miss Fernald writes: In agreement with the observations already made in our first paper, and later in the work of Miss Thompson and Miss Gordon, our results show that in many cases a characteristic colored after-image follows an. Unperceived color stimulus. In general this after-irnage is perfectly clear and distinct. That the phenomena here described are genuine after-images is shown by the fact that the color is in every case the color complementary to the stimulus as it would be] perceived either in central or in peripheral Vision, although the observer was kept in complete ignorance concerning the nature of the stimuli employed, and so had no clew as to what after - image was to be expected in cases in which the color of the] stimulus was not seen. Moreover, gray and white, though fre quently used as stimuli, were never followed by colored after images. 6 Hellpach here drops out of sight altogether, while the range of the subliminally aroused after - image is extended, from the extreme periphery, to include both the B - Y’ and the R - G zones.
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