In addition, in the pursuit of endophenotypes, oscillatory measures of basic mechanisms such as reward feedback processing may hold particular promise because they allow for examination of specific frequencies, their timing and extent of phase locking (ITC), which may be more precisely tied to the postsynaptic potentials and physiology that underlies the EEG. Thus, whereas ERPs can be limited by assumptions about which factors influence the emergence of distinct event-related brain potentials (Makeig et al., 2004), considering the oscillatory nature can better inform our understanding of brain-behavior relationships as this approach retains a richer representation of EEG signals across time-frequency domains.
