The LGN models of COS were formulated on the basis of cat physiology, where almost all cell response functions are compressive as a function of contrast.
Phylogenetic non-independence was accounted for by analyzing independent contrast values within a multiple linear regression framework that specified contrast ω as a function of contrast TE content, GC content at third positions (GC3) and protein length.
To determine behavioral performance and stimulus visibility as a function of contrast, we fitted the following Weibull function to the psychophysical data of our monkeys: (1) In this function, Perfmax corresponds to the performance at the highest contrasts, c are the different contrast levels used, α is the threshold contrast, and β determines the slope of the function.
Contrast as a function of fiber protrusion was maximized at zero fiber protrusion for all eyes examined and declined monotonically.
In contrast, the evolution of the average of the longitudinal and transverse strains as a function of sin2 Ψ is shown to be linear.
Because of the small surface energy, crossovers in stability of microporous materials as a function of particle size are unlikely, in contrast to the behavior of dense polymorphs.
The average (across base contrast levels, phase shifts between monocular images, and subjects) normalized perceived contrast, defined as the contrast of the matched probe grating divided by the base contrast of each condition, is plotted in Figure 3B as a function of interocular contrast ratio between the monocular images.
The peak lags are plotted in the lower panel as a function of visual contrast or log precision.
Figure 3 shows the Kullback-Leibler divergence as a function of stimulus contrast.
Furthermore, the decrease in optical contrast as a function of increasing tip-sample separation was studied.
