Neurovis: Visualizing brain signals in 3D in real-time

Re:Neurovis: Visualizing brain signals in 3D in real-time by omginternets on Friday January 05, 2018 @05:22AM (#16077752)

> 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.

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Re:Neurovis: Visualizing brain signals in 3D in real-time by nabla9 on Friday January 05, 2018 @08:58AM (#16078557)

Standard? 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.

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Re:Neurovis: Visualizing brain signals in 3D in real-time by omginternets on Friday January 05, 2018 @09:07AM (#16078617)

My mistake: I got mixed up and reported standard sampling rates for MEG.

You are, of course, correct.

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Re:Neurovis: Visualizing brain signals in 3D in real-time by frereubu on Friday January 05, 2018 @05:54AM (#16077857)

Thanks 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!

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