The detection of gratings in narrow‐band visual noise*
- 1 December 1971
- journal article
- Published by Wiley in The Journal of Physiology
- Vol. 219 (2), 355-365
- https://doi.org/10.1113/jphysiol.1971.sp009666
Abstract
1. The detectability of sinusoidal gratings comprised of either one or many cycles was measured in veiling luminances the spatial frequencies of which were either narrow- or broad-band.2. In narrow-band noise, the single-cycle grating was detected with approximately 0.6 log units less contrast than the many-cycle grating. On the other hand when both broad-band and narrow-band noise were present, there was no measurable difference in the detectability of the two types of grating.3. The results are interpreted as supporting the hypothesis of Campbell & Robson (1968) that spatially varying luminance patterns are processed by mechanisms selectively sensitive to limited ranges of spatial frequencies.Keywords
This publication has 7 references indexed in Scilit:
- Spatial-Frequency Channels in Human Vision*Journal of the Optical Society of America, 1971
- On-Frequency Masking with Continuous SinusoidsThe Journal of the Acoustical Society of America, 1971
- Spatial-Frequency Discrimination in Human VisionJournal of the Optical Society of America, 1970
- Visibility of aperiodic patterns compared with that of sinusoidal gratingsThe Journal of Physiology, 1969
- Adaptation to spatial stimuli.1969
- Application of fourier analysis to the visibility of gratingsThe Journal of Physiology, 1968
- Optical and retinal factors affecting visual resolution.The Journal of Physiology, 1965