________________________________ From: Felix Yuan Sent: Thursday, December 14, 2017 1:20:20 PM To: hcp-users@humanconnectome.org<mailto:hcp-users@humanconnectome.org> Cc: Eduardo Gonzalez-Moreira Subject: HCP resting-state MEG sensor position problem
Dear HCP experts, My name is Felix and I am Prof. Pedro Valdes-Sosa MSc student, during the last days I had been working with the resting state MEG data from the Human Connectome Project (preprocessed data). Related with this, I am getting an unexpected scalp topography since for resting state data the alpha activity must be over the occipital areas (see attached pic occipital_area.jpg). However, in my analysis the alpha activity appears over the left temporal lobe for all the subject areas (see attached pic temporal_lobe.jpg). Could you please tell me whether the sensor position coordinates that I took from data.grad.chanpos are right and which space it came from? In which space are the sensors position and how I could transform it to MNI space? I have checked on the fieldtrip website and found that there should be a field , which is data.elec in the data from the preprocessing output of fieldtrip structure, where can I download it if possible? Thanks for your time and help, All the Best, Felix _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users
