Peter:
It works. It saved me a lot of troubles. Otherwise, I cannot image how to
combine them one by one.
You are my hero, at least for today.
Best Regards.
Jiansong
> From: Peter LaViolette <[log in to unmask]>
> Date: Fri, 22 Jun 2007 13:28:53 -0400 (EDT)
> To: Jiansong Xu <[log in to unmask]>
> Cc: <[log in to unmask]>
> Subject: Re: [SPM] roi
>
> Hit build in marsbar instead of import. then select from image, and select
> your binarized image, and apply no function. I think that should do it.
> Pete
>
>
> On Fri, 22 Jun 2007, Jiansong Xu wrote:
>
>> Peter, Thanks again.
>>
>> It works. But, ...
>>
>> My plan is to use marsbar to calculate the mean BOLD signal changes within
>> the big ROI. When I imports this mask into marsbar, marsbar separate the
>> ROI into > 60 ROIs. It did exactly what I did not want to do at the first
>> step. Can you or anyone else provide a clue to calculate the mean BOLD
>> signal changes in this big ROI?
>>
>> Best
>>
>> Jiansong
>>
>>
>>> From: Peter LaViolette <[log in to unmask]>
>>> Date: Fri, 22 Jun 2007 12:49:36 -0400 (EDT)
>>> To: Jiansong Xu <[log in to unmask]>
>>> Cc: <[log in to unmask]>
>>> Subject: Re: [SPM] roi
>>>
>>> Hit results, grab the SPM.mat file, and select the contrast you want.
>>> Then in the lower right corner of the GUI there is a save button. Press
>>> it. You are then saving the glass brain values as an image. Because they
>>> are values you have to binarize it (1s and 0s) to create your ROI.
>>> Therefore you press imcalc, select the image you just saved, it prompts
>>> you for an equation, type in i1>0, which takes all the glass brain voxels
>>> that are above zero and changes them to 1. Then name the new image and
>>> you are all set.
>>> Pete
>>>
>>> On Fri, 22 Jun 2007, Jiansong Xu wrote:
>>>
>>>> Peter:
>>>>
>>>> Thanks. But, I didn't get it. Could you a little bit more detail (the
>>>> sequence of button pushes).
>>>>
>>>> Best
>>>>
>>>> Jiansong
>>>>
>>>>
>>>>> From: Peter LaViolette <[log in to unmask]>
>>>>> Date: Fri, 22 Jun 2007 12:14:16 -0400 (EDT)
>>>>> To: Jiansong Xu <[log in to unmask]>
>>>>> Cc: <[log in to unmask]>
>>>>> Subject: Re: [SPM] roi
>>>>>
>>>>> Plot the results, hit save, then do an imcalc selecting the image you
>>>>> saved, and use the equation i1>0 to binarize it.
>>>>> Pete
>>>>>
>>>>> On Fri, 22 Jun 2007, Jiansong Xu wrote:
>>>>>
>>>>>> Dear Friend:
>>>>>>
>>>>>> I'm using SPM2 and want to make a ROI consists of all the significant
>>>>>> voxels
>>>>>> of a contrast, which too can I use?
>>>>>>
>>>>>> Thanks
>>>>>>
>>>>>> Jiansong
>>>>>>
>>>>>>
>>>>>>
>>>>
>>>>
>>>>
>>>>
>>
>>
>>
>>
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