Questions about the differences in results when performing fMRI preprocessing in different versions of Dparsf-A
Hello. Prof. Yan. I have some questions.
1)
I and my lab member simultaneously calculated ReHo values in the same fMRI data using different version of the dpabi (ex. DPABI_V6.1_220101 VS DPABI_V8.2_240510/ actually dparsf-A in the dpabi).
we applied the same batch file including slice-timing, realignment, new segment+DARTEL, Nuisance covariate regression(polynomial trend:1), Friston 24, add mean back, Normalize(by DARTEL), band-pass filtering, ReHo cluster 27.
老师你好,我拿到的数据已经进行了时间层校正和头动校正,我是在这基础上进行了平滑(平滑核666),使用EPI模板进行配准,去除协变量、Nusance Regression等预处理,然后计算了ALFF,但是ALFF的结果看起来灸学是没有做过平滑一样,很多小方块,请问这可能是什么原因呢,检查了预处理的每一步骤的结果图,没有发现问题所在。