The first twin study of event-related brain potentials (ERPs) was published by Dustman and Beck in 1965 (Dustman and Beck, 1965). They showed that the correlation between waveforms of sensory evoked potentials elicited by light flashes measured between MZ co-twins is of the same order as the correlations between two separate recordings made in the same person, whereas DZ twins showed markedly lower resemblance.
