Does the location of the ground matter? Can I choose the location?

 It is important to follow the X-trodes recommendations as it ensures acquiring accurate and consistent signals:

1. xtr EEG16 (XTELC046GM05) – on the bridge of the nose.
2. xtr EEG12 (XTELC048GM05) – on the back of the neck.
3. xtr EXG2 (XTELC0002005RM) – on the center of the forehead.