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SubjectPlacementInMEG

Connections

Guide the subject to the MEG room and seat her/him in the MEG chair. Plug all EOG, ECG and Ground electrodes on the right panel of the MEG machine as follows:

Plug the HPI coils on the left panel of the MEG machine. The HPI plug only has 5 plastic pins while the MEG connector has six pins (see below). Plug HPI coils at the back of the plug (The sixth pin, closest to you, is not used).

Subject plament in MEG helmet

Then, lift up the MEG chair by pressing the treadle until the top of the subject's head touches the back of the helmet. During this operation, ask your subject to be relax and do not sit up in the chair because she/he will naturally sit back during the recording time. Take care that the subject's head is well straight and medially placed in the helmet. If necessary, you can maintain the subject's head with moss pieces inside the helmet. Be careful, this is not really comfortable and ask your subject her/his preference.