Dear Alfonso,

Thanks for your prompt response. We tried to to run the functions you mentioned. We managed to convert our matrix into NIFTI format using "conn_mtx_write". However, when we tried to run our group-level analysis using "conn_module", we got an error message that there is a mismatch in the number of subjects in the design matrix. CONN only finds 1 subject whereas our design matrix contains a total of 100 subjects (2 times 50 subjects for 2 different conditions). I attach the matrix and the error message.
Thanks in advance.

Jaron