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. 2018 May 14;12:176. doi: 10.3389/fnhum.2018.00176

Table 2.

Pearson r and significance level for correlations between low contrast flicker fusion and the low contrast peak-to-peak amplitudes and the M efficiency ratio of the VEP, as well as correlations between high contrast flicker fusion and the high contrast peak to peak amplitudes and P efficiency ratio of the VEP.

VEP Flicker fusion
Low contrast df(64) High contrast df(63)
First order kernel LC K1 (N70-P100) r = 0.075, p = 0.274
LC K1 (N140-P170) r = −0.052, p = 0.338
HC K1 (N80-P100) r = −0.181, p = 0.074
HC K1 (N140-P180) r = −0.116, p = 0.159
Second order kernel slice 1 LC K21 (N70-P100) r = −0.345*, p < 0.002
HC K21 (N70-P110) r = −0.415**, p < 0.000
Second order kernel slice 2 LC K22 (N70-P80) r = −0.320*, p < 0.004
LC K22 (N110-P150) r = −0.041, p = 0.456
HC K22 (N70-P90) r = −0.213, p = 0.044
HC K22 (N110-P150) r = −0.016, p = 0.450
LC M efficiency r = 0.314*, p < 0.005
HC P efficiency r = −0.132, p = 0.147

p < 0.005*, p < 0.0005**, LC, low contrast; HC, high contrast.

correlational analysis of the flicker thresholds with amplitudes were analyzed in separate one tailed Pearson list-wise tests, corrected for multiple comparisons.