[Eeglablist] extracting cluster specs for each subject

Agatha Lenartowicz alenarto at ucla.edu
Wed Jun 16 16:00:12 PDT 2010


Hi all ~ I would like to extract the subject specific dat contributing to each cluster solution (from an MP clustering applied to ICs). Can you point me to the appropriate data structure or set of files where these live?

Many thanks
agatha


On May 14, 2010, at 7:21 AM, Jason Ralph wrote:

> We have the same problem.  
> 
> There are 2 solutions: 
> 
> Solution #1
> 
> 1. Export .raw file. 
> 
> 2. Create a waveform tool to export events. Select relative time.
> 
> 3. In Excel (or write a script), convert NetStation's funky time format to seconds.milliseconds.  
> 4. Import .raw file into EEGLAB
> 5. Import events into EEGLAB (import events from matlab array or text file)  Your formatted event text file must have the fields type and latency, but you can add any additional fields desired.  
> 
> If you need help, we have written scripts to semi-automate this process.
> 
> 
> Solution # 2
> 
> 1.  Purchase Amp Server Pro SDK from EGI for $8,000.  ASPSDK allows you to capture EGI's data without using NetStation
> 2.  Acquire data directly into BCI2000 or Matlab  itself.
> 3.  Never use NetStation again!!!!
> 
> 
> We've been using solution 1 for some time, but are seriously considering solution 2.  
> 
> 
> 2010/5/12 Paweł Augustynowicz <pawel.augustynowicz at gmail.com>
> Dear All,
> 
>  
> I have a short question about import data from EGI simple binary file format with events. By default, EEGLAB imports EGI’s simple binary with events, but in only one dimension. I mean, that I can see only the name of the event. Additional data (event fields) are not imported. Does anyone have an idea of how to attach this data do EEGLAB? I assume that this information is written in additional channels. But EEGLAB deletes all of these channels except one with the basic info.
> 
> I tried to insert this data manually, by there is another problem. I have a few epochs in original NetStation recording. These epochs are essential because of the experiment design (experiment is too long and we have to do breaks). When I export this data from NetStation as simple binary, this file is being broken into files representing epochs in original recording. I can import this bunch of files with pop_readsegegi command. This function does the job well, except one little bug: NetStation counts time from the beginning of the experiment. Pauses during the recording are treated as the beginning of epochs. In EEGLAB all epochs have continuous time, so there is no possibility to attach events exported from NetStation, because the time after the first epoch is different.
> 
>  
> Does anyone ran on these problems and managed to resolve it?
> 
>  
> Regards,
> 
> Pawel Augustynowicz
> 
> The John Paul II Catholic University of Lublin
> 
>  
> 
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> 
> -- 
> Jason Ralph
> CogWorks Laboratory
> Cognitive Science Department
> Rensselaer Polytechnic Institute
> 110 8th Street, Troy, NY 12180
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