Flicker brightness enhancement and visual nonlinearity
نویسندگان
چکیده
منابع مشابه
Flicker brightness enhancement and visual nonlinearity
The purpose of this study was to investigate the nonlinear mechanism underlying brightness enhancement, in which a flickering stimulus appears brighter than a steady stimulus of equal mean luminance. The flickering and matching stimuli were temporally alternated. Both were cosine windowed to minimize the potential effects of temporal transients. Subjects adjusted the amplitude of the matching s...
متن کاملVisual discomfort and flicker.
Flickering lights can be uncomfortable to look at and can induce seizures in observers with photosensitive epilepsy. However, the temporal characteristics contributing to these effects are not fully known. In the spatial domain, one identified source of visual discomfort is when images have Fourier amplitude spectra that deviate from the natural (∼1/frequency, 1/f) statistical characteristics o...
متن کاملFlicker distorts visual space constancy.
Effects of flicker on space perception were measured by displacing a flickering target during saccadic eye movements. A small target was flickered at 33, 66, 130 or 260 Hz. Using a 2-interval forced-choice design, sensitivity to the displacement was about twice as great when the target was moved in the direction opposite the eye movement as when it was moved in the same direction. This would be...
متن کاملIntensity and Critical Frequency for Visual Flicker
Using the rotating striped cylinder device previously employed for determination of the flicker response function with lower animals, corresponding measurements have been made with human observers. The curves based upon the relation between critical flash frequency and critical intensity for the signalling of the recognition of flicker have the properties of human flicker fusion data as obtaine...
متن کاملViagra slows the visual response to flicker
As an undesirable side effect, sildenafil citrate (Viagra) partially inhibits the phosphodiesterase PDE6 [1], which plays an essential role in phototransduction (reviewed in [2,3]). PDE6 not only activates the visual transduction cascade, but also controls the time over which the visual response is integrated, thereby helping to maintain the size of the visual response within an optimal range a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Vision Research
سال: 1996
ISSN: 0042-6989
DOI: 10.1016/0042-6989(95)00226-x