WAVELENGTH DISCRIMINATION FUNCTION DERIVED FROM POST-DISCRIMINATION GRADIENTS IN THE PIGEON
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概要
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Pigeons were trained to discriminate between two wavelengths with a yes/no procedure. Post-discrimination gradients ranging between the training wavelengths (420-470, 470-520, 520-570 and 570-650nm) were obtained for four groups. The sum of the differences between the choice probabilities at adjacent wavelengths was assumed as a measure of the rate of change in apparent color, and a wavelength discrimination function ranging from 430 to 640 nm was obtained. The function was compared with the functions obtained recently with different methods and showed that the wavelength discrimination was best at 450, 500-510, 530-540 and 600 nm spectral regions. The findings were related to generalization gradients, color-naming data and physiological data.
- 公益社団法人 日本心理学会の論文
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