Fig. 6
From: Light-based gamma entrainment with novel invisible spectral flicker stimuli
Estimated mean SNR values from experiment A-B and estimated probability of each rating on perceived discomfort and flicker in experiment C. Barplot (a) shows the estimated mean SNR values of each stimulus in experiment A and estimated mean difference from CON averaged over the levels of brightness. All light-based gamma stimuli are found to be significantly different from the CON light. The level of brightness was found to be non-significant for the SNR values. Barplot (b) shows the estimated mean SNR values of each angle of exposure in experiment B and the estimated mean difference from direct exposure. Exposure from an angle of 30° to the right of the center was significantly different from the direct exposure. A trend of increasing response with increasing brightness and a trend of decreasing response with increasing exposure angle is observed. Mean differences are estimated from the linear mixed effects models after adjustment for multiple comparisons using the Sidak method. Only significant differences are shown in the barplots. The probability of each rating on perceived discomfort (c) and flicker (d) is estimated from the cumulative linked mixed effects model.
