The following Matlab project contains the source code and Matlab examples used for determine the necessity for global signal regression.
Determine the Necessity for Global Signal Regression in Resting-State fMRI Studies
Calculate GNI from preprocessed resting state data and a whole brain mask
if GNI>3, global signal regression may not be necessary
reference:
Chen G, Chen GY, Xie C, Ward BD, Li W, Antuono P and Li SJ.

The source code and files included in this project are listed in the project files section, please make sure whether the listed source code meet your needs there.

## Project Files:

File Name | Size |
---|---|

license.txt | 1309 |

Rest2GNI.m | 5879 |