MultiplotER using Neuromag lay

Daria Osipova Daria.Osipova at FCDONDERS.RU.NL
Mon Mar 19 16:42:28 CET 2007


Oops they didn't get attached
Hopefully now it works



-----Original Message-----
From: FieldTrip discussion list [mailto:FIELDTRIP at NIC.SURFNET.NL] On Behalf
Of Shtrahman, Matthew
Sent: Monday, March 19, 2007 3:28 PM
To: FIELDTRIP at NIC.SURFNET.NL
Subject: Re: [FIELDTRIP] MultiplotER using Neuromag lay

Hi,

Can someone give me the link where I can download NM306mag.lay?

Thanks,

Matt


-----Original Message-----
From: FieldTrip discussion list on behalf of Joachim Gross
Sent: Mon 3/19/2007 5:38 AM
To: FIELDTRIP at NIC.SURFNET.NL
Subject: Re: [FIELDTRIP] MultiplotER using Neuromag lay

Hi Eve,

I think I had a similar problem.
In my case the channel labels in NM306mag.lay did not exactly match the
labels in avgdata.label.
After changing either set of labels it worked for me.

Joachim

alotof eve wrote:
> Hi, Christian,
>
>   Sorry I didn't reply this for a long time. Thanks for these
> suggestions. They work well. And I found after using read_data, the
> other processing still can work for whole data.
>
>   However, I met another problem.
>
>   After I did timelockanalysis, I tried to plot average data using
> multiplotER. I downloaded the file "NM306mag.lay" and other two you
> offered. The layoutplot(cfg) shows that the files are correct.
> However, when I used multiplotER(cfg,avgdata), the figure showed up
> was blank. Nothing on it even the lables.
>
>    Could you or other experts tell me the possible way to figure it
> out? Thanks so much.
>
> Best,
> Eve
>
>
> */Christian Hesse <c.hesse at FCDONDERS.RU.NL>/* wrote:
>
>     Hi Eve,
>
>>     I can use meg-pd toolbox now. However, it seems all the functions
>>     in FieldTrip are for evoked data while my raw data is continuous
>>     data.
>
>     FieldTrip handles a variety of data, and the low level reading
>     functions can deal with continuous or epoch based raw data.
>
>     When you analyze your data in FT, you usually start by defining
>     your trials, i.e. epochs in your continuous data that are of
>     interest, w.r.t. to some sort of trigger or event. The function
>     PREPROCESSING then scans through your raw data file and returns a
>     data structure which contains all of the specified epochs (for a
>     particular trial definition) in a field data.trial. Please note
>     that this has nothing to do with evoked vs induced responses just yet.
>
>     You can use the output of PREPROCESSING as input to either
>     TIMELOCKANALYSIS or FREQUANALYSIS which look at evoked and induced
>     phenomena, respectively. Afterwards you can call various
>     statistical functions such as FREQDESCRIPTIVES, etc ...
>
>     So the reason why I have been giving you the examples using
>     read_header and read_data is because I needed to determine the
>     nature of the error you were getting without really knowning
>     anything about what sort of data is in your file. In your use of
>     FT you do not actually use these functions yourself, but basically
>     use functions like DEFINE_TRIAL and PREPROCESSING to start with.
>
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