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Illustrative VEP recordings before and after rTMS-QPI in a healthy subject. Panels (A,B) show 6 sequential blocks of 100 averaged VEP responses (numbered 1 to 6) before (A) and immediately after (B) one session of occipital rTMS-QPI. Above: corresponding amplitude changes of N1P1 (straight line) and P1N2 (dashed line) components.
