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Figure 4 | Journal of Neurodevelopmental Disorders

Figure 4

From: Abnormal late visual responses and alpha oscillations in neurofibromatosis type 1: a link to visual and attention deficits

Figure 4

Blue-yellow stimulation: visual evoked potentials (VEPs) elicited by blue-yellow stimulation, in patients with neurofibromatosis type 1 (NF1) and controls, revealed significant differences between the groups in the amplitude of the late responses between 250 and 350 ms after stimulus phase-reversal. (A) Grand averages of the elicited VEPs for each stimulus contrast (labeled on the left) for the control and NF1 groups. Positive voltage is up. (B) Contrast response functions for P1 amplitude and latency. (C) Contrast response functions for P2 amplitude and latency. (D) Contrast response function for the VEPs’ mean amplitude between 250 and 350 ms after phase reversal (LC). All data are represented as mean ± 1 standard error of the mean.

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