Fig. 2: Flicker ERG peak times and amplitudes in infants and healthy adults.

Boxplots show flicker ERG implicit times to the first peak (A) and flicker ERG amplitudes (B) of moderate preterm infants (n = 40), very/extremely preterm infants (n = 40), and adults with closed eyelids (n = 11) for 5 levels of flicker stimuli. Horizontal bars are median values; boxes show interquartile range, capped lines are 95% confidence intervals, dots show statistical outliers.