Hi Andreas,
oh, I think you might take a look at the marsbar forum:
http://www.nabble.com/MarsBaR-f1948.html
For example, for your question whether to use in 'single' or in
'stacked' mode,
you should definitely read this posting of Matthew Brett at:
http://www.nabble.com/Re:-a-question-on-FIR-model-Marsbar,-'singel'-or-'stacked'-td13562661.html
Ulrike
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Ulrike Zimmer, PhD
Woldorff Laboratory
Center for Cognitive Neuroscience
LSRC Rm B242
Box 90999
Duke University
NC-27708 Durham
USA
Tel: (+1)-919- 668-1334
Fax: (+1)-919- 681-0815
Quoting Andreas Pedroni <[log in to unmask]>:
> Hi Ulrike,
>
> Thank you very much for you suggestion! I already used marsbar fir
> extraction, but what does it actually do with the data? I did not
> find out whether to use it in single or in stacked mode, since the
> description in the sourcecode is a bit confunsing to me (and some
> colleages). I also don't know, how (or if) the way I define my design
> matrix (e.g. convolution model) influences the fir? I think the
> marsbar toolbox is really great, but it lacks documentation in order
> to use it properly.
>
> Regards
>
> Andreas
>
>
>
>
> Am 21.05.2008 um 16:11 schrieb Zimmer:
>
>> Hi Andreas,
>>
>> the easiest & in my opinion also correctest way to extract time-
>> courses of ROIs
>> in SPM is to use the marshbar-toolbox of Matthew Brett.
>>
>>
>> The Toolbox is easy to add to SPM-matlab path (for SPM99, SPM2, SPM5)& very
>> user-friendly.
>>
>> to download it got to: http://marsbar.sourceforge.net/
>>
>> more specific info about how to get the time-course is in the FAQ at
>> http://marsbar.sourceforge.net/faq.html#extract_fir
>>
>> Ulrike
>>
>> --
>> Ulrike Zimmer, PhD
>> Woldorff Laboratory
>> Center for Cognitive Neuroscience
>> LSRC Rm B242
>> Box 90999
>> Duke University
>> NC-27708 Durham
>> USA
>> Tel: (+1)-919- 668-1334
>> Fax: (+1)-919- 681-0815
>>
>> Quoting Andreas Pedroni <[log in to unmask]>:
>>
>>> Hi SPM Members,
>>>
>>> I come up with a quite general question. If I want to analyse an
>>> average activation timecourse in a ROI, what is the appropriate
>>> approach to do so?
>>> In the literature, authors only write " ...averaged activation
>>> timecourses were extracted".
>>> Does the my design matrix and the convolution function influence
>>> extracted timecourses?
>>>
>>> Thanks for any suggestions!
>>>
>>> Andreas
>>>
>>
>>
>>
>>
>
>
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