The Time Constant in P300 Recording

Document Type

Article

Publication Date

1979

Keywords

EEG, Auditory event‐related potentials, P300, Time constant

Digital Object Identifier (DOI)

https://doi.org/10.1111/j.1469-8986.1979.tb01440.x

Abstract

A standard counting task was used to illustrate the effect of the time constant of the recording system on the amplitude and waveform of the P300 component. A random sequence of 1500 Hz (probability = .10) and 1000 Hz (probability = .90) tones was presented to one male subject. The EEG from Cz and Pz was recorded simultaneously at time constants of 0.1, 0.3, 1.0, and 10.0 sec. The ERP waveform was markedly affected by the time constant: the shorter the time constant, the smaller the amplitude of both the P300 and Slow Wave components.

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Citation / Publisher Attribution

Psychophysiology, v. 16, issue 1, p. 53-55

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