Re: number of electrodes

Sharif Olorin <[email protected]> Wed, 25 Feb 2015 22:40:54 +0000

Newsgroups	gmane.comp.science.openeeg.general
Message-ID	<[email protected]>

> Does anyone know why EEG systems have up to 24 electrodes and not more? what is the real limitation? Is it electronics?

Do you mean OpenEEG systems, or EEG systems in general? If the latter,
most medical/research EEGs have more than 24 electrodes. I'm not sure
about OpenEEG, but generalising from similar designs I'd guess it's
something like a limitation imposed by the ADC chosen (number of
channels), or just plain cost savings. I don't see any reason the design
couldn't be modified to support more, it's certainly not a limitation in
fundamental physics or anything.

HTH,
Sharif

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