Dear Philip,
On 19/12/13 16:57, Chris Watson wrote:
> You would have to either look at SPM's code [...]
Further to Chris' answer, the SPM functions to look at (using SPM8 line
numbers) are:
* spm_fmri_spm_ui.m l.380-425: compute globals, scale data and determine
threshold
* spm_spm.m l.661-681: apply threshold and compute mask
Best wishes,
Guillaume.
> On 12/19/2013 10:22 AM, Philip Lin wrote:
>> First, thanks for your answering.
>>
>> About Q2, how do I decide which voxel should be masked ? Is there any guide or formula to decide it ? In other words, If I write a program to reproduce GLM as in SPM8, how could I know which voxel should be masked and which voxel should be estimated ?
>>
>> and Does these masked voxels be excluded during whole analysis ?
>>
>> Thanks, again.
>>
>> Philip Lin
>>
>>
>>
>
--
Guillaume Flandin, PhD
Wellcome Trust Centre for Neuroimaging
University College London
12 Queen Square
London WC1N 3BG
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