Folder share for exporting patient zip files

[mattiher]

Hi Francois!

@Francois

Why not simply epoch the original separated files as 1s epochs?
And why do you need epoching in the first place? Reviewing data would be easier directly from the continuous files, using custom shortcuts:
https://neuroimage.usc.edu/brainstorm/Tutorials/EventMarkers#Custom_shortcuts

Sorry, my description was too unclear. Yes, we are using the continuous file for reviewing data. However, because the recording had crashed in the middle of the night, I had to reconstruct one whole night raw data recording from two parts A and B. So now the senior scientist can review one continuous raw data (A+B).
The reason I epoched this to 1 minute epochs, was that I wanted to do time-frequency analysis only to delta band for whole night recording. This was something like what you have advised in the following topic:

How can I do time-frequency analysis on continuous data?

Greetings, I am trying to acquire a spectrogram for a long steady-state study. Naturally methods such as Morlet wavelet convolution are not applicable to lengthy and continuous data. How can I have a Time-frequency plot for my lengthy steady-state Data (Hours long) using brainstorm?

We wanted to have a rough estimation of structure of the sleep and in what time range the spindles might be occuring. I didn't create the real spectrogram, but only one dimensional curve of the delta power during the night in few channels. Example below:

@Francois

I hope you made a full backup of your database before starting to play with these copying and exports.

Yes, the backups should be ok. I have both automatic backups and manual snapshots of brainstorm_db folder.

@Francois

I'm not sure. I've had tons of problems with large zip files with the Windows tools. Try with something more robust instead, like 7zip.

@Francois

These export to zip / import from zip features were not really designed to handle such gigantic files.

The 7-zip was not able to open them either, so as you said it is probably the big size of the files.

@Francois

I would recommend you find a way to skip these import/export parts in Brainstorm and directly exchange the actual files (zipping them with 7zip if it's more convenient for you to send only one file).

I believe this solves my problem. I let you know if I still have problems with this. Actually, I was considering this direct change of files, but I saw a line in Tutorial 1 in Database chapter which says:
"All the files in the database have to be imported through the GUI. Do not try to copy files by yourself in the brainstorm_db folder, it won't work." I misunderstood this and assumed that also file export by copying database folders is a bad idea.

Thank you Francois!