I have overall 150 data, and my professor asked me to extract each participant’s FA and MD values. I know how to get mean FA and MD by using TBSS in FSL. However, since we are still collecting data and I need to add those new data (not follow-up, they are totally new brain data) on already existing ones, wouldn’t each participant’s FA and MD values change with each time I add the new data?
Moreover, do you know any other way to extract FA and MD values for each participant in a specific tract in my case (adding new data every week )?
I really appreciate any help you can provide.