BOLD信号具体数值
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有个小问题，我一直想不明白，请大家帮忙。
在一幅fMRI图像中，BOLD信号具体数值是多少？怎么样才能看到这个数据？
举个例子，有篇文章得到了下面的统计图，我想知道BOLD信号的数值是怎么得到的，用SPM能实现吗？
Discuss
Rest img mismatch after AFNI normalization
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Hi everybody,
I'm currently processing a series of rest fmri data which need to be manually normalized.
The procedure briefly goes like this:
-- dparsf completed the pre-normalization steps from 'dicom->nifti' to 'realign'
-- toggle spm, 'coregister: estimate',
-- switch AFNI，
'3dWarp -deoblique' and '3drefit -markers ' to generate sturctural .HEAD/BRIK pair
时间簇分析法TCA
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请问谁用时间簇分析法（TCA）处理过fMRI数据啊？
想知道这种方法需要使用什么样的软件，是怎样实现的。
谢谢大家!
想知道这种方法需要使用什么样的软件，是怎样实现的。
谢谢大家!
normal ditribution before RFX ananlysis
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Hi all,
In the article "Detection of functional networks in the resting brain" there was a step before group analysis involving transforming the individual Reho data to normal distribution. Has this function been implemented in REST ? If yes, what specific method is being used?
Thanks,
Hua
In the article "Detection of functional networks in the resting brain" there was a step before group analysis involving transforming the individual Reho data to normal distribution. Has this function been implemented in REST ? If yes, what specific method is being used?
Thanks,
Hua
今天碰到的几个问题
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近期碰到几个问题
拿出来大家看看：
做统计分析结果呈现的时候，因为是手动配准，用的AFNI tlrc坐标，最终结果在各种工具中呈现结果不同：
rest slice viewer效果最好，与模板匹配
同样的结果放到MRIcroN就不匹配（我用的模板和mask是同源的）
可能是MNI坐标与tlrc坐标不同的关系
在spm里面也一样 不匹配：
拿出来大家看看：
做统计分析结果呈现的时候，因为是手动配准，用的AFNI tlrc坐标，最终结果在各种工具中呈现结果不同：
rest slice viewer效果最好，与模板匹配
同样的结果放到MRIcroN就不匹配（我用的模板和mask是同源的）
可能是MNI坐标与tlrc坐标不同的关系
在spm里面也一样 不匹配：
dparsf潜在的bug?
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亲爱滴们：
今天碰到这样一个问题，焦头烂额：
由于这批数据需要手动配准，所以我的处理流程如下：
1. 用dparsf批处理至realign。
2.用spm做coregister.
3.用AFNI转换格式后做Normalize
4.转换个格式后，将得到的EPI相文件放入FunImgNormalized文件夹。
然后启动dparsf，
先跳过Smooth做的ReHo，很顺利，detrend, filter, reho...没有任何问题。
然后继续用dparsf做alff以及falff，操作过程如下：
-matlab下输入dparsf
-依次去掉smooth前所有的勾
-选择工作目录
- 输入时间点190
- 选择自定义模板
今天碰到这样一个问题，焦头烂额：
由于这批数据需要手动配准，所以我的处理流程如下：
1. 用dparsf批处理至realign。
2.用spm做coregister.
3.用AFNI转换格式后做Normalize
4.转换个格式后，将得到的EPI相文件放入FunImgNormalized文件夹。
然后启动dparsf，
先跳过Smooth做的ReHo，很顺利，detrend, filter, reho...没有任何问题。
然后继续用dparsf做alff以及falff，操作过程如下：
-matlab下输入dparsf
-依次去掉smooth前所有的勾
-选择工作目录
- 输入时间点190
- 选择自定义模板
help 3: Rest Dicom Sorter
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坛主，
这批数据比较早，2005年GE机器，TR 1s, 16sl, 200TR.
使用Sorter时候报错：
??? Error using ==> mkdir
系统找不到指定的文件。
Error in ==> rest_DicomSorter at 38
mkdir(dirname);
help 2: dparsf
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hi,
the previous error i brought up was fixed by adding the line
"rest_Fix_Read_Write_Error"
before initializing dparsf.
however, the time between pressing the bottom "run" and actual data precessing is much longer in the linux environment than windows (just now i experienced a 15 min lag).
so is the time for data precessing.
what might the problem be? how can i fix it?
i'm currently using double systems on my laptop, which are windows XP and linux fedora ver 12.
the previous error i brought up was fixed by adding the line
"rest_Fix_Read_Write_Error"
before initializing dparsf.
however, the time between pressing the bottom "run" and actual data precessing is much longer in the linux environment than windows (just now i experienced a 15 min lag).
so is the time for data precessing.
what might the problem be? how can i fix it?
i'm currently using double systems on my laptop, which are windows XP and linux fedora ver 12.
help: dparsf error
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Linux, fedora 12
Matlab 2010a
Dparsf lastest ver.
spm8
error:
??? Error using ==> DPARSF('editSliceOrder_Callback',gcbo,[],guidata(gcbo))
Error: This statement is incomplete.
Error in ==> DPARSF>editSliceOrder_Callback at 369
handles.Cfg.SliceTiming.SliceOrder =eval(['[',SliceOrder,']']);
Error in ==> gui_mainfcn at 96
feval(varargin{:});
Error in ==> DPARSF at 39
Matlab 2010a
Dparsf lastest ver.
spm8
error:
??? Error using ==> DPARSF('editSliceOrder_Callback',gcbo,[],guidata(gcbo))
Error: This statement is incomplete.
Error in ==> DPARSF>editSliceOrder_Callback at 369
handles.Cfg.SliceTiming.SliceOrder =eval(['[',SliceOrder,']']);
Error in ==> gui_mainfcn at 96
feval(varargin{:});
Error in ==> DPARSF at 39