Showing papers by "Albion College published in 1969"
TL;DR: Two experiments support a proposed theory that predicts that, within certain limits, increases in target-field luminance or duration will increase the target’s susceptability to masking.
Abstract: Studies of visual backward masking demonstrate that increases in target-field luminance or duration will decrease the target’s susceptibility to masking. A proposed theory predicts that, within certain limits, increases in target-field luminance or duration will increase the target’s susceptability to masking. Two experiments support these predictions.
20 citations
TL;DR: In this paper, the nature of liminal measurement is discussed, and the standard deviation is proposed as a suitable alternative measure to the limen, which is a measure of the distance between two points.
Abstract: The nature of liminal measurement is discussed, and the standard deviation is proposed asa suitable alternative measure to the limen.
4 citations
TL;DR: In this article, the relation between luminance level and color discrimination at 570 millimicrons was studied and it was found that color discrimination ability was a joint function of the luminance levels of the stimulus and the ratio of luminance of the stimuli to that of the surrounding.
Abstract: This experiment studied the relation between luminance level and color discrimination at 570 millimicrons. A variety ofstimuli whose luminances varied from .1 to 100 ft-L were viewed against a variety of surrounds. 1t was found that color discrimination ability was a joint function of the luminance level of the stimulus and the ratio of the luminance of the stimulus to that of the surround.
3 citations
TL;DR: In this paper, color discrimination ability was measured at four spectral regions usually named blue, green, yellow, and red, and two methods, temporal forced-choice and phenomenal report, were compared Data suggest that for color discrimination, phenomenal report is a preferable technique.
Abstract: Color discrimination ability was measured at four spectral regions usually named blue, green, yellow, and red Two methods, temporal forced-choice and phenomenal report, were compared Data suggest that for color discrimination, phenomenal report is a preferable technique
1 citations
TL;DR: In this paper, the authors provide evidence of the history of water in five Cretaceous aquifers by water analyses comparisons and a study of the ratios of the major ions, Ca2+, Mg2+, Na+, Cl−, SO2−4 and HCO−3.