question regarding topoplotER

[Jim Li]

Dear all,

I have a question about the topoplotER:

I like the fact that the cartoon image of the nose and ears are drawn to
help visualize the relative position of the sensor and the head. For data
collection done in supine position, this works well when the subject's head
position is centered in the sensor. But if the head is tilted to the left or
right quite a bit (say a patient who can not cooperate), can I still count
on such a plot to tell the relative  position between patient head and
sensor-level activity? My experience seems to tell me "no", but I just want
to confirm...

Thanks,

Jim

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