Hi François,
I used brainstorm for MEG analysis. After I imported the unprocessed file of MEG of HCP in brainstorm, how can I get the data information in MEG (the signal actually recorded by the head table electrode)?
Thank you!
This tutorial explains how to import HCP data:
https://neuroimage.usc.edu/brainstorm/Tutorials/HCP-MEG
To learn how to use Brainstorm in general, follow all the introduction tutorials in the section "Get started" using the example dataset provided:
https://neuroimage.usc.edu/brainstorm/Tutorials
The last tutorial "Scripting" explains how to write Brainstorm scripts.
Thank you for your prompt reply.
My problem now is that I want to export the actual content of MEG. I used "export to matlab" for the imported raw data, which contains only some information of the channel, but no information collected by the channel. How can I get the information collected by the channel?
You need to epoch the data first (import data chunks from the continuous file to the database).
This is introduced in tutorial #15.
I strongly recommend you start by following the introduction tutorials before trying to work with your own data. Learning how to use the software properly will save you a lot of time in the future.