Now showing items 11-20 of 90
The effect of deviations from linearity on the detection of dotted line patterns,
(Elsevier, 1973-11)
Four experiments were carried out to determine the detectability of dotted line stimulus patterns embedded in backgrounds of randomly dotted visual noise. The results indicate that straight lines are more easily detected ...
Phosphoinositide metabolism and prostacyclin formation in retinal microvascular endothelium: Stimulation by adenine nucleotides
(Elsevier, 1990-01)
Phosphoinositide lipid metabolism and prostacyclin production are implicated in endothelium dependent vascular relaxation in large blood vessels. To determine if these biochemical pathways might be involved in the regulation ...
Growth-related changes in the receptive field properties of retinal ganglion cells in goldfish
(Elsevier, 1981)
Intraocular recordings were made from retinal ganglion cells of small ( 140 mm) intact, submerged goldfish while stimuli were presented on a tangent screen. Very few cells recorded in either small or large fish responded ...
In search of the elusive long-wave fundamental
(Elsevier, 1982)
Action spectra for threshold detection of flicker (30 Hz) were obtained on 11 deuteranopes under carefully controlled adaptation conditions. Individual differences were large, so that each one of the long-wave fundamentals ...
Extrinsic current and flash sensitivity in turtle cones
(Elsevier, 1994-02)
The effects of hyperpolarizing current and background light on intracellular responses of red cones in turtle were compared. Even though a background light always reduced response amplitude, hyperpolarizing current did so ...
The delayed rod afterimage
(Elsevier, 1982)
A flashed background, presented to a dark-adapted eye, can saturate the rod system, making an incremental test patch invisible. But as the afterimage decays, the test can be distinguished. Increment thresholds measured ...
Flicker fusion characteristics of rod photoreceptors in the toad
(Elsevier, 1983)
Critical fusion frequency (CFF) of toad rods was examined at various intensities using intracellular recordings. Data were compared to CFF measurements (as a function of intensity) obtained with the electroretinogram (ERG) ...
The kinetics of cone visual pigments in man
(Elsevier, 1971-06)
Rushton's general kinetic equation for human cone pigments is tested by estimating the photolysis rate at equilibrium from the initial photolysis rate and comparing it to the equilibrium rate of regeneration measured ...