Article Figures & Data
Figures
- Figure 1.
Illustration of the experimental design. A, Observers wore Eyetronix Flicker Glass (EFG) for 1 h. Their binocular balance and interocular correlation function were assessed during one pre-deprivation session and five post-deprivation sessions. Post-deprivation sessions were run at 0, 10, 20, 30, and 40 min after deprivation. B, Binocular balance measurement. The images viewed by subjects were composed of two horizontal sine-wave gratings with equal and opposite phase shifts of 22.5°. The stimulus contrast for the nondominant eye was fixed at 100% and the dominant eye was δ × 100%. δ is the interocular contrast ratio that was selected in practice trials. To avoid potential positional errors, in configuration one, the phase of the dominant eye was set as +22.5°, and the other eye was set as −22.5° and used in reverse in configuration two. C, Interocular correlation measurement. The images for the two eyes were composed of two blended filtered noise textures CC (the common one that constituted the correlated part of the stimulus) and CLE or CRE, respectively (the uncorrelated part for the left eye and the right eye), modulated by out-of-phase sinusoidal envelopes MC, MLE, and MRE of one-quarter the frequency of the noise pattern (MLE is the same as MRE). And we could adjust the modulation parameter M to change the amount of correlation present in the common stripes of two eyes. Thus, those who have a degree of interocular correlation could see a visual effect of luster with orientation at 45° or 135° (here at 135°). D, The subject task was to identify the orientation of the correlation modulation of the stimulus, which could be oblique at 45° (left) or 135° (right). E, The interocular correlation (IOC) sensitivity function is described as a function of the spatial frequency by the truncated log-parabola model. Four parameters are studied: the peak gain, the peak frequency, the bandwidth, and the truncation.
- Figure 2.
Effects of 7 Hz alternate monocular deprivation on binocular perceived phase. Results of 10 subjects’ perceived phase changes (relative to the baseline) were plotted using 10 different blue symbols, and their average perceived phase changes as a function of measurement sessions are plotted with the green triangles. Error bars represent SEs.
- Figure 3.
Effects of 7 Hz alternate monocular deprivation on interocular correlation. A, Lines with six colors and six symbols (▵, ▿, ○, ◊, ∅, □) represent the averaged interocular correlation sensitivity as a function of spatial frequency in predeprivation and postdeprivation sessions, the shaded area indicates standard errors. B, AULIOCSF in the function of predeprivation and postdeprivation sessions. Results of 10 subjects were plotted using 10 different pink symbols, and the blue triangles represent the averaged AULIOCSF across 10 subjects. Error bars denote SEs.
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