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921.
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Kenneth D. Hopkins Robert A. Smith Warren G. Findley John N. McCall 《Psychometrika》1967,32(3):355-360
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Harold W. Hake Gerald W. Faust John S. McIntyre Harry G. Murray 《Attention, perception & psychophysics》1967,2(10):469-478
Judgments were made of the size of a small, luminous (inner) square appearing in the center of a somewhat larger, variable (outer) square, the whole pattern appearing in the dark. Accuracy of judgment was greatest when the outer square was constant from trial to trial but deteriorated when the outer square also varied in size, reaching a lower limit less than the accuracy produced under the absolute judgment condition (no outer square presented). An application of multiple discriminant analysis and the use of a maximum likelihood observer model provided estimates of the extent to which Os responded to inner and outer size variation as separate aspects of stimulation. Although Os differed markedly in this respect, their ability to identify inner square size under the various conditions did not reflect this difference. 相似文献
926.
Averaged responses of the occipital lobes to flashes imposed along the midline of the upper part of the retina are larger and of shorter latency than responses to flashes imposed on the lower retina. Since reaction times also are shorter when the upper retina is stimulated, this study provides further evidence for the generalization that reaction time varies inversely with amplitude and directly with latency of the evoked response. 相似文献
927.
T. G. R. Bower 《Attention, perception & psychophysics》1967,2(9):411-418
Object permanence or existence constancy was one of the phenomena which greatly exercised the philosophical fathers of experimental psychology. The topic has been little studied since. Michotte has described the psychophysics of existence constancy, while Piaget has studied its development. Michotte’s work was restricted to adults while Piaget’s notably lacked careful psychophysical control. The aim of the present study was to bridge the gap between the two, to study the psychophysics of existence constancy in infants. Results showed that there is remarkably little difference between infant and adult as far as psychophysical control is concerned. The major difference seems to be a rate of processing difference. However, changes in processing rate will not account for the development of the concept of object permanence. What seems to be learned is a rule which can override perceptual constancy and nonconstancy in some situations. 相似文献
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