Find absolute, relative, and mean power of theta, beta and TBR (theta/beta ratio)

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CJMTEX
CJMTEX 2020 年 9 月 27 日
コメント済み: Star Strider 2020 年 10 月 13 日
I have raw eeg data that I need to find the absolute, relative, and mean power of the theta and beta bands and theta/beta ratio. I have attached the data file. The data was taken from OpenBCI and imported into MatLab. Please advise how I can do this as I have over 40 file I have to analyze the same. Thank you in advance.

回答 (1 件)

Star Strider
Star Strider 2020 年 9 月 27 日
You can filter them using the approach in Need to break down EEG signals into 4 frequency bands.
Once you have the filtered signals, square them (using the element-wise exponentiation operator .^, so vector ‘x’ would be ‘x.^2’ to convert amplitude units to power units).
I must leave to you how best to read those files, since I have no idea what the format is.
  6 件のコメント
CJMTEX
CJMTEX 2020 年 10 月 13 日
Thank you for you help. I was wondering if you knew of a person or company I can pay to process my eeg data? I have been trying to figure this out for months and it seems that the further I dig the more confused I become. I am running out of time so at this point I just need to get the data so I can write up my findings. Thank you in advance.
Star Strider
Star Strider 2020 年 10 月 13 日
There is no need to do that.
There are several posts on MATLAB Answers that filter EEG appropriately it (I wrote at least some of them). After you filter them, do whatever processing you need to do on the results.

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