Bryn Mawr College monographs . Fig. 17.—Field for green. Bright day, gray surrounding field and Fig. 18.—Field for green. Brightday, black surrounding field andpreexposure. Fig. 19.—Field for green. Darkday, black surrounding field andpreexposure. 22 Ferree and Rand : Color Sensitivity of Retina. 23 each stimulus, but also the subdivisions in which the differenthues were sensed. The rotary campimeter, by means of^vhich the fields were taken, was so constructed that thedifferent hues in which the stimulus was sensed at any pointin the field could be matched in color and brightness
Bryn Mawr College monographs . Fig. 17.—Field for green. Bright day, gray surrounding field and Fig. 18.—Field for green. Brightday, black surrounding field andpreexposure. Fig. 19.—Field for green. Darkday, black surrounding field andpreexposure. 22 Ferree and Rand : Color Sensitivity of Retina. 23 each stimulus, but also the subdivisions in which the differenthues were sensed. The rotary campimeter, by means of^vhich the fields were taken, was so constructed that thedifferent hues in which the stimulus was sensed at any pointin the field could be matched in color and brightness in cen-tral vision on a small electric color mixer. The equationsrepresenting these hues in terms of the Hering standardcolors and vvlute and black are shown in the maps referredto above. Space has been allowed for showing the effecton only two of the colors—red and green. In order to realize how profoundly the powers of chromaticresponse must have been afected to change the limits ofsensitivity by the amounts represented in the foregoingfigures and charts, one must bear in mind how abruptlysensit
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Keywords: ., bookauthorbrynmawr, bookcentury1900, bookdecade1900, bookyear1901
