related a potassium inward rectifier channel demonstrated in a GWAS study at genome-wide significance level (Kang et al., 2012). These studies suggest that EROs can capture separate aspects of the neural response elicited by the target stimulus that are distinct from P3 amplitude and thus can serve as a promising phenotype for genetic studies. A study using coherence analysis of event-related EEG from an auditory oddball task (Winterer et al., 2003) found a significant association between polymorphism in exon 7 of the GABAB receptor 1 gene and EEG coherence in parietotemporal regions in both resting state and during the performance of auditory choice reaction time task.
