DPARSF--the detected time points of subject "..." is: 0, ... slice timing correction

Submitted by dominic on Thu, 10/29/2009 - 12:34

 Dear DPARSF developers, 

I'm trying to use the DPARSF toolbox to process some nifti (hdr, img) resting state sequences. It seems to be able to read the files (stored in FunImg), but when I un-tick the 'Slice Timing' box it appears with the message "the detected time points of subject "..." is: 0 ...". Does this mean that we have to conduct the slice timing step? 

many thanks,

Dominic

Forums: 
Resting-state fMRI topics

functional connectivity

Submitted by sunshine on Mon, 10/26/2009 - 23:30

我用rest中的functional connectivity做两个脑区的相关行分析，分别选择了两个脑区中的某一个体素作为ROI，进行相关性分析。不同的是数据预处理时高斯平滑核分别选择4和6进行处理。得到的结果却相差很大，有的出现一次正相关，一次负相关，有的出现两次相关性相差几十倍。想请问各位老师：改变高斯核会有这么大变化吗？还是这个情况属于不正常，可能是处理步骤出了问题？

Forums: 
Resting-state fMRI topics