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How Many EEG Channels Should I Use In My Research? [Less Than You Think!] | Mentalab

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Looking to do EEG research but unsure how many channels to use? Have a read to find out what you need to consider.

Wondering how many EEG channels you should use in your experiment? For a long time, researchers considered 32 EEG channels the “gold standard”. However, times are changing. Read on to find out more. Why are 32 EEG channels the gold standard? The reason so many researchers use 32 EEG channels is partly historical. Scientists believed that, if applied correctly (using the 10-20 or 10-10 positioning system), the minimum number of EEG channels needed to reliably localize brain activity during Evoked Response Potentials (ERPs) was 32. Even today, although there are many applications that require fe

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