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. 2010 May 1;33(5):703–713. doi: 10.1093/sleep/33.5.703

Figure 2.

Figure 2

Grand average of difference wave obtained by subtracting the standard ERPs from novel ERPs. The difference wave to the novel sounds reflects 2 components: negative deflection is MMN at 130 ms and positive deflection is P3a at 230 ms.