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Group-averaged ERP voltage waveforms, and scalp topography for N1, N2 and P3 as a function of condition. (A) Exemplar waveforms from CZ, PO7 and PO8 are displayed for nochange, vocal-change, facial-change and bimodal-change. (B) The ERP topography (top view shown) for N1, N2 and P3 components as a function of modality
