THE RELATIONSHIP BETWEEN P300 AND EVENT-RELATED THETA EEG ACTIVITY
Commentary on Klimesch, Verleger, and Schurmann et al. on Memory-Brain

Abstract

Klimesch (1995a), Verleger (1995), and Schurmann et al. (1996) agree that the main power of the event-related potential (ERP) P300 component is in the delta range. What is still debatable is the relationship between P300 and theta ERP activity. It is important to differentiate two aspects of the association between P300 and theta response: (1) Theta ERP activity may contribute directly to P300 expression, for example, P300 may contain theta power; and (2) the relationship between P300 and theta response may be functional and mediated by general processing in the theta frequency channel of the EEG rather than just being underlaid by the theta power within the P300 latency range. We present data in support of both aspects. The latter one may be an example of the interaction between delta and theta ERP components.

Keywords

References

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