Event-related phase reorganization may explain evoked neural dynamics

摘要: The traditional view holds that event-related potentials (ERPs) reflect fixed latency, polarity evoked responses appear superimposed on the 'background EEG'. validity of model has been questioned by studies arguing ERPs are generated at least in part a reset ongoing oscillations. But proof phase is distinct from 'artificial' influence components EEG phase-has proven difficult for variety methodological reasons. We argue theoretical analysis assumptions and empirical evaluation predictions oscillatory ERP offer promising way to shed new light mechanisms generating goes well beyond attempts prove reset. Research oscillations documents task relevant show common operating principle, which control timing neural activity. Both findings suggest reorganization necessity. further evidence (i) exhibit typical interactive relationship between pre- poststimulus power theta alpha frequency range small prestimulus related large vice versa, (ii) (interpeak) latencies (iii) amplitudes characteristics emphasize central cannot be substantiated conclude ERPR offers an integrative interpretation phenomena.