I am working on MEG data in HCP database by importing one preprocessed file into brainstorm_db and I got 418 trials(epoches) just in one condition. However, I am trying to split this condition into several subconditions according to my own criteria(based on trial information,such as reaction time,etc...).
It is known that brainstorm provides toolbox to merge several conditions into one condition(db_group_conditions.mat). But the inverse process seems a little bit tricky. Except manually moving these trials(which is painstaking for me since there are hundreds of trials for each subject and I have nearly 100 subjects), could you please enlighten me an effective way to do this job?
Thanks so much~