Figure 4From: Lateral inhibition in visual cortex of migraine patients between attacks Correlation between the number of days since the last migraine attack and the slope of 1H WD- VEP amplitude changes (negative, linear regression: uninterrupted line) or the slope of N1-P1 TR-VEP amplitude changes (positive, linear regression: dashed line) in the total cohort of migraine patients. Back to article page