Dear all,
I'm recording my meditation sessions but in order to analyze the results I would like to know if there are some options available.
I have been checking the possible graphics offered in musemonitor website and I see that are different of the musemonitor app.
I would like to have an spectogram, discrete freq. graph of my whole session but I do not know how to get in musemonitor online graphics website.
I would like to record a session with the musemonitor app and then get an average discrete freq graph of my whole session. Would it be possible?
I wanna to analize the most frequent frequencies I have been during my meditation session.
I hope you understand what I wanted to say.
Thanks in advance!
Graphics MuseMonitor website
Re: Graphics MuseMonitor website
The Discrete frequency and Spectrogram graphs in the app are done using a real time FFT (Fast Fourier Transform) from the RAW EEG data.
If you want to do an FFT on a recorded session, first you will need to increase the recording interval from the default 1Hz interval to "Constant", which will be 220Hz, or 256Hz depending on your Muse model. This will give you the required RAW EEG data in the file for the FFT.
You can then do an FFT in Excel by installing the Excel Analysis Toolpack. If you search on YouTube there are a bunch of tutorials on how to do this.
I'm not sure about adding this to the online charts, as it would only work on files with Constant rate recording, and it would be a LOT of processing for a browser to handle. I'll think about it, but no time promises
If you want to do an FFT on a recorded session, first you will need to increase the recording interval from the default 1Hz interval to "Constant", which will be 220Hz, or 256Hz depending on your Muse model. This will give you the required RAW EEG data in the file for the FFT.
You can then do an FFT in Excel by installing the Excel Analysis Toolpack. If you search on YouTube there are a bunch of tutorials on how to do this.
I'm not sure about adding this to the online charts, as it would only work on files with Constant rate recording, and it would be a LOT of processing for a browser to handle. I'll think about it, but no time promises
Re: Graphics MuseMonitor website
Hi,
After a brief testing, I uploaded a graphics and I do not really understand the reason of the results:
Why is it Delta the higher brainwave? The first ones at the beginning of the meditation session should be the beta ones, those that are present in the awake humans and active thought. Then, while meditation time we should see and decrease of the beta and an increase of the alpha ones (occipital lobe active when we close the eyes) and then if we are in a deep meditation we could expect to see an increment of the value of the theta ones.
But in the graph I got, we can see almost all the time the Delta wave above of all (and it makes no sense because we have delta in deep sleep 0.5-3Hz) follow by alpha and theta.
Beta wave is the forth of the average so this graph does not allow me to understand.
I would expect to have at the beginning of the meditation the beta in the higher place followed by alpha, theta and delta and then at the end of the meditation session and increment of the alpha (decreasing beta) and maybe also an increment of theta.
I hope i could explain myself what I wanted to say. Thanks in advance for your help!!
After a brief testing, I uploaded a graphics and I do not really understand the reason of the results:
Why is it Delta the higher brainwave? The first ones at the beginning of the meditation session should be the beta ones, those that are present in the awake humans and active thought. Then, while meditation time we should see and decrease of the beta and an increase of the alpha ones (occipital lobe active when we close the eyes) and then if we are in a deep meditation we could expect to see an increment of the value of the theta ones.
But in the graph I got, we can see almost all the time the Delta wave above of all (and it makes no sense because we have delta in deep sleep 0.5-3Hz) follow by alpha and theta.
Beta wave is the forth of the average so this graph does not allow me to understand.
I would expect to have at the beginning of the meditation the beta in the higher place followed by alpha, theta and delta and then at the end of the meditation session and increment of the alpha (decreasing beta) and maybe also an increment of theta.
I hope i could explain myself what I wanted to say. Thanks in advance for your help!!
Re: Graphics MuseMonitor website
If Delta is unusually high, then you probably have bad sensor connectivity.
If you have muscle movement interference or a bad connection in general, Delta will be affected the most, as it's the lowest wave.
Check your RAW EEG and ensure that you have thin crisp lines before starting your session.
You can see in your screenshot above a number of markers:
* J - Jaw Clench.
* BF - Bad Fit.
* GF- Good Fit.
Ideally you should never see any of these. You'll also note that these markers are on the left of the graph only. The right of the graph which contains no warning markers has lower Delta.
If you have muscle movement interference or a bad connection in general, Delta will be affected the most, as it's the lowest wave.
Check your RAW EEG and ensure that you have thin crisp lines before starting your session.
You can see in your screenshot above a number of markers:
* J - Jaw Clench.
* BF - Bad Fit.
* GF- Good Fit.
Ideally you should never see any of these. You'll also note that these markers are on the left of the graph only. The right of the graph which contains no warning markers has lower Delta.
Re: Graphics MuseMonitor website
Dear,
I recorded another session and I got the following graph:
We can see that now delta is not higher so I can tell the sensors where good fit. However I can see that during the whole session the theta waves are above the beta ones which it makes no sense talking about neuroscience.
So for that reason I asked you in the previous post how to get a graphic where we can see the most represented frequency of the whole session. Only in this way we can proceed with a good neurofeedback after the meditation sesion so we can improve in every single session. It would be something like this:
So if I have the average graphic representing in which frequencies I have been for more time during the session I could get a lot of useful information.
For exemple, if I can see in the graphic that there are more area represented in the 15Hz zone, it would say to me that the next session I would have to try to get more area (in blue in the last graphic) in 10Hz for example so I would be less active.
So if it would be possible to get in a fast way this kind of graphic it would be very useful for all the users that are intereseted in neuroscience and neurofeedback.
thanks again for your implication
I recorded another session and I got the following graph:
We can see that now delta is not higher so I can tell the sensors where good fit. However I can see that during the whole session the theta waves are above the beta ones which it makes no sense talking about neuroscience.
So for that reason I asked you in the previous post how to get a graphic where we can see the most represented frequency of the whole session. Only in this way we can proceed with a good neurofeedback after the meditation sesion so we can improve in every single session. It would be something like this:
So if I have the average graphic representing in which frequencies I have been for more time during the session I could get a lot of useful information.
For exemple, if I can see in the graphic that there are more area represented in the 15Hz zone, it would say to me that the next session I would have to try to get more area (in blue in the last graphic) in 10Hz for example so I would be less active.
So if it would be possible to get in a fast way this kind of graphic it would be very useful for all the users that are intereseted in neuroscience and neurofeedback.
thanks again for your implication
Re: Graphics MuseMonitor website
Please note that it's not just a cut and dry thing that X *should* be higher than Y in a given situation. Everyone's brain is unique.
A discrete frequency FFT graph is available in Muse Monitor live while you are recording, I'll consider adding it to the online charts, but note that it will require a recording with the full data rate RAW EEG. It will not be possible with the default 1Hz recording setting.
A discrete frequency FFT graph is available in Muse Monitor live while you are recording, I'll consider adding it to the online charts, but note that it will require a recording with the full data rate RAW EEG. It will not be possible with the default 1Hz recording setting.
Re: Graphics MuseMonitor website
Yes, I understand and I really appreciate your work!
If it would be possible to add a discrete freq FFT for the whole sesion in online charts would be fantastic because with a quick overview you get a lot of information about which frequencies your brain spend more time was during the meditation session. This allow us to improve in every single session.
However, I repeat that I know it's hard work and for that reason I really appreciate your interest for helping.
Kind regards
If it would be possible to add a discrete freq FFT for the whole sesion in online charts would be fantastic because with a quick overview you get a lot of information about which frequencies your brain spend more time was during the meditation session. This allow us to improve in every single session.
However, I repeat that I know it's hard work and for that reason I really appreciate your interest for helping.
Kind regards