Now showing items 1-10 of 90
Ganglion cell acuity in hooded rats
(Elsevier, 1982)
Previous measurements of retinal ganglion cell acuity in hooded rats have differed significantly from behavioral tests of visual acuity. One possible source of this discrepancy is examined--that light deprivation in early ...
Visual detection by the rod system in goldfish of different sizes
(Elsevier, 1988)
New rods are continually generated and inserted across the entire differentiated retina in juvenile and adult goldfish; no other retinal cells share this characteristic. How does the preferential addition of rods affect ...
Light-evoked sustained inhibition in mudpuppy retinal ganglion cells
(Elsevier, 1982)
Intracellular recordings were made from off-center ganglion cells in the retina of the mudpuppy. Necturus maculosus. Current-voltage measurements revealed that the sustained light-evoked hyperpolarization of these cells ...
Complexity effects in form detection
(Elsevier, 1977)
This study examines the effect of pattern complexity on the detectability of dotted target patterns presented in dotted visual noise. The effects of complexity on performance in this detection task were shown to be ...
Assessment of foveal cone photoreceptors in Stargardt's macular dystrophy using a small dot detection task
(Elsevier, 1993-07)
We measured frequency-of-seeing curves for tiny (1.125 and 3.375 min arc) stimuli flashed briefly at absolute threshold to estimate the density of foveal cones in normals and in subjects with Stargardt's macular dystrophy. ...
Interactions of the horizontal and vertical human oculomotor systems: The saccadic systems
(Elsevier, 1972-01)
The human oculomotor system has been studied by numerous people for well over half a century. Since the visual system is our primary sensory input channel, it is important for us to know how information is processed by the ...
Two-criterion threshold techniques: Evidence for separate spatial and temporal mechanisms?
(Elsevier, 1983)
Contrast thresholds were determined for counterphase flickering and drifting spatial gratings using pattern and flicker/motion criteria. In contrast to previous reports, the two criteria yielded contrast sensitivity functions ...
Dark adaptation of the long-wavelength sensitive cones
(Elsevier, 1983)
Long-wavelength sensitive (L) cone dark adaptation curves were measured with a 10-msec, 20' v.a., 650 nm test flash and a moderate intensity adapting field. When the 650 nm and 500 nm fields were equated for the L cones, ...
"Self-screening" of rhodopsin in rod outer segments
(Elsevier, 1987)
Microspectrophotometry (MSP) shows rhodopsin highly concentrated (about 3.0mmol/l) in rod outer segments (ROS). Calculation of the in vivo absorption spectrum of human rhodopsin from such data reveals a striking failure ...