Event-related potentials or ERP represent the analysis of brain wave signals related to a particular event. Here, we explain how they work.
Electroencephalography and magnetoencephalography, or EEG and MEG pick up brain wave signals, or neural oscillations. These brain oscillations reflect different brain processes. It is particularly interesting to look at these signals when something triggers the brain. For example, how do the brain waves look like when we give someone a reward? or when they act surprised?
The analysis of brain waves signals at a specific point in time, when a stimulus is presented, are called event related potentials. Each wave, or potential often reflects a distinct brain process. Positive peaks and negative peaks can be observed which are abbreviated with P or N. A number represents at what time the peak occurs.
References:
Luck, S. J. (2005). An Introduction to the Event-Related Potential Technique. Cambridge, MA: MIT Press.
Luck, S. J., and Kappenman, E. K. (eds). (2012). The Oxford Handbook of (Event)-Related Potential Components. New York: Oxford University Press.
Narrated by: Miles Wischnewski
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2 окт 2024
