Abstract
In the visual cortex of monkeys and humans, several types of processing are conducted, such as orientation-selective edge detection. It was also reported by Campbell and associates that the cerebral visual cortex conducts processing consisting of spatial-frequency-and-orientation-specific multiple narrow-band channels. It has also been reported that spatial-frequency-and-orientation-specific visual stimuli cause adaptations in the corresponding channels, resulting in reductions of the visual sensitivity around some frequency ranges. In the course of simulation studies using Landolt rings to measure visual acuity, we found that spatial-frequency-specific adaptations would cause paradoxical transient improvements in visual acuity. We therefore conducted perceptual experiments to see if these improvements in visual acuity take place after spatial-frequency-specific visual adaptation, with positive results. These findings may be significant in designing road information boards for car drivers, because such an adaptation often occurs while driving a car.
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References
Cambell FW, Robson JG (1968) Application of Fourier analysis to the visibility of gratings. J Physiol 197:551–566
Uchida K, Ueda K, Onodera H, Horiba I, Yamamoto S, Sugie N (1999) Designing a human-friendly road information board for high-way drivers from the viewpoint of a multiple spatial frequency channel model of the human visual system. Proceedings of the 1999 IEEE International Conference on System, Man, and Cybernetics, p 607–611
Marr D (1982) Vision. Freeman, New York, chapter 2
Heeley DW, Timney B (1988) Meridional anisotropies of orientation discrimination for sine-wave gratings. Vision Res 28:337–344
Nagano T (1977) Spatial frequency responses of the human visual system. Circulars of the Electrotechnical Laboratory, No. 193
Jones RM, Tulunay-Keesey U (1975) Local retinal adaptation and spatial frequency channels,Vision Res 15:1239–1244
Blakemore C, Campbell FW (1969) On the existence of neurons in the human visual system selectively sensitive to the orientation and size of retinal images. J Physiol 203:237–260
Wilson HR, Bergen JR (1979) A four mechanism model for threshold spatial vision. Vision Res 19:19–32
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Uchida, K., Nagai, Y., Ueda, K. et al. Spatial frequency-specific visual adaptation may cause paradoxical transient improvements in visual acuity: computer simulation and confirmatory experiments. Artif Life Robotics 6, 191–195 (2002). https://doi.org/10.1007/BF02481266
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DOI: https://doi.org/10.1007/BF02481266