Ueber den Einfluss des Sättigungsgrades auf die Schwellenwerte der Farben.

that of the colored field appeared to have no definite influence upon the threshold.If on the other hand the intensity of the inner field alone or of both fields be simultaneously changed, we find a decrease or a rise of threshold values accompanying a decrease or a rise, respectively, in intensity.Hence, if the brightness of the colored field decreases as a result of contrast, the threshold value rises, but if the intensity of the colored field is itself decreased, the threshold value decreases./. e., if the brightness of a colored field or its background be increased by the addition of white light, the objective threshold value will be found to rise in both cases, although, in the first case, the brightness of the colored field subjectively increases and the degree of saturation decreases, while in the second case the brightness decreases and the degree of saturation increases.