Hi Douglas,
Thanks for the reply. can i get a link to a publication or
report that describes the GLM analysis applied to tensors?
thanks,
sid.
On Mon, Feb 9, 2009 at 10:22 AM, Douglas N Greve
<gr...@nmr.mgh.harvard.edu>wrote:
>
> It will probably be the case that it just gives the entire volume (the
> "masking" routine just looks for 0-valued voxels). I don't think it actually
> uses the mask for anything, though.
>
> glmfit is run because that's what the tensor analysis is.
>
> Siddharth Srivastava wrote:
>
>> Hi everyone,
>> I have recently started using the dt_recon processing
>> pipeline
>> in freesurfer. I just ran a dataset through it, and had a few questions
>> about
>> the methodology
>> 1) How does the script calculate the mask from the DW data set. Is there
>> any way
>> to influence the mask calculation routine? I am familiar with bet/bet2 and
>> i have
>> an set of parameters tuned to my dataset. within dt_recon, i get the
>> entire volume
>> as a mask, while fsl generated a nice inclusive mask. Is there any way i
>> can use
>> the bet generated mask with dt_recon?
>> 2) why is a glm fit done at the end of the processing stage?
>>
>> best regards,
>> sid.
>> ------------------------------------------------------------------------
>>
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>
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