3 ms·
> fMRI takes a lot of post-processing with complex statistics to produce any kind of useful information. So does EEG. The reason EEG is closer to real-time th
by omginternets 9y ago
> fMRI takes a lot of post-processing with complex statistics to produce any kind of useful information.
So does EEG. The reason EEG is closer to real-time than fMRI is because of the sampling rate. With fMRI, .9 Hz is considered quite good. For EEG, 2000 Hz is considered standard.
- frereubu 9y agoThanks for the clarification. I've only worked with fMRI, so wasn't aware of the ins and outs of EEG processing despite being aware of the spacial / temporal resolution difference. It makes this method even more suspicious!
- nabla9 9y agoStandard? 2000 Hz sampling rate may be used with intracranial electrodes. If the EEG is measured from the scalp 200-250 Hz sampling rate is usually good enough. It enables EEG recordings up to 80-90 Hz. Most clinical uses are interested EEG below 40 Hz.
- omginternets 9y agoMy mistake: I got mixed up and reported standard sampling rates for MEG. You are, of course, correct.