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(a) Raw VEP and AEP waveforms from the traveling human phantom at each of the five sites. Data from the human phantom was used to determine adjustment factors to better align the latency and amplitude of the VEP/AEP components across sites. The derived adjustment factors were applied to the data for all participants and controls prior to final analysis. (b) VEP and AEP waveforms from the traveling human phantom with the adjustment applied.
