Spatial frequency tuning in the visual evoked potential elicited by sine-wave gratings
β Scribed by J.L. Reed; M.S. Marx; J.G. May
- Book ID
- 118371043
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 704 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0042-6989
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At low contrast levels there is good agreement between the psychophysical contrast sensitivity function and the tuning curve of the visually evoked potential (i.e., VEP amplitude vs spatial frequency). At high contrast, however, some researchers have found bimodal VEP tuning curves whereas others ha
The latency in the visual evoked potential was measured at spatial frequencies of 2-12 c/deg in 10 subjects. The contrast levels of the sinuosoidal grating patterns were set at 1.5, 1.75, 2.0, 2.25, 2.5, 2.75 and 3.0 log units above each subject's contrast sensitivity threshold. Two factors were sho