Import script: fail to impose correct time window/freq recording

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1

Hi,
I want to have a nice way to look at NIRS data that I have been pre-processed out of Brainstorm, ultimately to decide which subjects should be kept/remove.
I saved the data in .mat file chan x time

I used
bst_process(‘CallProcess’, ‘process_import_data_time’, sFiles, []
or
bst_process(‘CallProcess’, ‘process_import_data_epoch’, sFiles, []

with this i have the data in the brainstorm space, BUT i fail to have them with the proper characteristic, specifically the time window of the epoch. Brainstorm imports the data considering a 1000Hz recording sample. Even though I used the option

‘timewindow’, [0, 40]

could someone indicate me which option I missed?
best whishes

2

Hello,

Importing recordings from Matlab matrices or text files is still handled with older interface functions. You can't set the import options from the process options.

Three solutions to your problem:

  1. You load all your files with the interactive menu: right-click > Import MEG/EEG: This will ask you the missing information.
    image
  2. Do this only once, the options will be saved permanently, then if you call again process_import_data_time or process_import_data_epoch, they will used you redefined options.
  3. Use only scripts, but redefined the option structure manually. For example:
    % Prepare ASCII import options
    ImportEegRawOptions = bst_get('ImportEegRawOptions');
    ImportEegRawOptions.BaselineDuration  = 0;
    ImportEegRawOptions.SamplingRate      = 1000;
    ImportEegRawOptions.MatrixOrientation = 'channelXtime';
    ImportEegRawOptions.VoltageUnits      = 'None';
    ImportEegRawOptions.SkipLines         = 2;
    ImportEegRawOptions.nAvg              = 1;
    ImportEegRawOptions.isChannelName     = 1;
    bst_set('ImportEegRawOptions', ImportEegRawOptions);
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