利用rest基于ROI计算functional connectivity报错

老师好,我在做基于ROI的FC时候出现这个报错,mask我是选default mask的,检查过协变量数据和放入的被试是一致的,请问怎么解决呢?

Exception occured. (MATLAB:catenate:dimensionMismatch)
Error using fc (line 112)
Dimensions of matrices being concatenated are not consistent.
112#line, fc, in "F:\0_fMRI_softs\REST_V1.8_130615\fc.m"
1419#line, (parfor body), in "F:\0_fMRI_softs\REST_V1.8_130615\fc_gui.m"
1370#line, btnComputeFC_Callback, in "F:\0_fMRI_softs\REST_V1.8_130615\fc_gui.m"
96#line, gui_mainfcn, in "D:\Matlab\matlab\toolbox\matlab\guide\gui_mainfcn.m"
39#line, fc_gui, in "F:\0_fMRI_softs\REST_V1.8_130615\fc_gui.m"