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Colors are typically categorized, and color sensations can be conceived to lie on a continuum of psychological complexity from simple, sensations provoked by colors that fall near the centers of color categories and that convey predominately a single percept (like ‘blue’), to complex, sensations...
The paper reports a series of studies that attempt to examine the issue of tachistoscopic identification of letter material. In particular a reductionist approach is used to investigate the influence of retinal locus, cerebral dominance, metacontrast, letter symmetry, and ocular dominance on the...
When questioned, many subjects reported thinking of the months of the year in terms of a spatial ‘form’. Experiment II demonstrated that the RT profile generated when subjects made centre-end or first/second half judgements about month positions was similar to that obtained for cued locations on...
The saturation of mixtures of white and chromatic lights may be measured by magnitude estimation as a function of the proportion of chromatic light in the mixture. When the intensity of the white light is kept constant, and the intensity of the chromatic light is varied, the psychophysical...
For mixtures of white and colored lights, the intensity of the colored light necessary to produce a linear psychophysical saturation curve is determined. This intensity may be defined as equilibrium between chromatic and achromatic excitation. From a measurement of the equilibrium throughout the...
The questionableness of geometric models of stimulus similarity has led to the development of an alternative approach by Tversky which makes no dimensional or metric assumptions. Rather, stimuli are described as sets of qualitative stimulus aspects and stimulus similarity as a function of common...
Two experiments, using a partial vs. whole report procedure to isolate ‘iconic’ from short-term memory loss, are reported. In the first experiment 10 Ss had to judge the difference between two line lengths in a display of three pairs of lines (in rows). Results showed no significant variation in...
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