From: Age- and frequency-dependent changes in dynamic contrast perception in visual snow syndrome
Freq. [Hz] | Group | Contrast threshold (MC) | Degree of freedom | t-value | p-value |
---|---|---|---|---|---|
median [iqr] * 100 | |||||
15 | controls | 0.77 [0.61] | 38 | −2.83 | 0.0074 |
patients | 1.17 [0.51] | ||||
20 | controls | 1.68 [1.19] | 37 | −1.31 | 0.1999 |
patients | 1.99 [0.69] | ||||
25 | controls | 2.71 [1.85] | 38 | −1.03 | 0.3088 |
patients | 3.10 [1.30] | ||||
30 | controls | 6.08 [3.75] | 38 | −0.16 | 0.8739 |
patients | 6.21 [3.09] | ||||
35 | controls | 7.60 [5.48] | 37 | −1.35 | 0.1841 |
patients | 9.12 [3.34] | ||||
40 | controls | 9.29 [5.55] | 38 | −1.81 | 0.0783 |
patients | 11.36 [3.64] |