منابع مشابه
Accommodation responses to stimuli in cone contrast space
The aim was to identify the cone contributions and pathways for reflex accommodation. Twelve illumination conditions were used to test specified locations in cone-contrast space. Accommodation was monitored continuously in a Badal optometer while the grating stimulus (2.2 c/d sine-wave; 0.27 modulation) moved sinusoidally (0.195 Hz) towards and away from the eye from a mean position of 2.00 D (...
متن کاملThe responses of horses to predator stimuli
It is not known whether the instincts of wild horses have remained strong during their centuries of domestication. Knowledge of this matter would give riders the opportunity to know more about the behavior of horses and consequently about safety for both horses and riders. In this current research, we studied the behavior of fifteen Caspian miniature horses of different ages and sexes using sti...
متن کاملAccommodation to stimuli in peripheral vision.
Can targets in peripheral vision elicit accommodation responses? We used a laser optometer to measure monocular steady-state accommodation for stimuli at retinal eccentricities ranging from 1 degree to 30 degrees. The optical distance from the eye to the stimulus was varied from 0 to -6 D by introducing lenses in front of the eye. The accommodative response was plotted as a function of optical ...
متن کاملFlicker ERG responses to stimuli parametrically modulated in color space.
PURPOSE To develop methods for recording human electroretinogram (ERG) responses to stimuli that modulate different classes of cones in various ratios, to draw inferences about the combination of cone signal in early retinal processing. METHODS Subjects viewed large-field temporal modulations presented on a computer-controlled color monitor. A flicker photometric paradigm was used to equate t...
متن کاملthe responses of horses to predator stimuli
it is not known whether the instincts of wild horses have remained strong during their centuries of domestication. knowledge of this matter would give riders the opportunity to know more about the behavior of horses and consequently about safety for both horses and riders. in this current research, we studied the behavior of fifteen caspian miniature horses of different ages and sexes using sti...
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ژورنال
عنوان ژورنال: Vision Research
سال: 2004
ISSN: 0042-6989
DOI: 10.1016/j.visres.2004.07.005