Chapter

Electroencephalography

Jaakko Malmivuo

in Bioelectromagnetism

Published in print October 1995 | ISBN: 9780195058239
Published online March 2012 | e-ISBN: 9780199847839 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195058239.003.0013
Electroencephalography

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Evoked potentials are those components of the EEG that arise in response to a stimulus (which may be electric, auditory, visual, etc.). Such signals are usually below the noise level and thus not readily distinguished, and one must use a train of stimuli and signal averaging to improve the signal-to-noise ratio. Single-neuron behavior can be examined through the use of microelectrodes which impale the cells of interest. Through studies of the single cell, one hopes to build models of cell networks that will reflect actual tissue properties.

Keywords: evoked potential; EEG; signal-to-noise ratio; microelectrodes; cell networks; tissue properties

Chapter.  2290 words.  Illustrated.

Subjects: Neuroscience

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