Title

BCIs that use P300 Event Related Potentials

Document Type

Book Chapter

Publication Date

2012

Keywords

ERP, electroencephalography, brain-computer interfaces, neural activity, brain signals, oddball paradigm

Digital Object Identifier (DOI)

https://doi.org/10.1093/acprof:oso/9780195388855.003.0012

Abstract

Event-related brain potentials (ERPs) in electroencephalography are manifestations at the scalp of neural activity that is triggered by, and is involved in, the processing of specific events. This chapter focuses on brain-computer interfaces (BCIs) that use P300, an endogenous ERP component. The P300 is a positive potential that occurs over central-parietal scalp 250–700 msec after a rare event occurs in the context of the oddball paradigm. This paradigm has three essential attributes: a subject is presented with a series of events (i.e., stimuli), each of which falls into one of two classes; the events that fall into one of the classes are less frequent than those that fall into the other class; and the subject performs a task that requires classifying each event into one of the two classes.

Was this content written or created while at USF?

Yes

Citation / Publisher Attribution

BCIs that use P300 Event Related Potentials, in J. Wolpaw & E. W. Wolpaw (Eds.), Brain-Computer Interfaces: Principles and Practice, Oxford University Press, p. 215-226

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