Le Thu, 15 Sep 2005 20:46:18 -0400, r norman
<NotMyRealEmail at _comcast.net> a écrit :
>>Can someone provide a reasonably concise definition of "Blood
>>Oxygenation Level-Dependent Signal Level" and its correlates?
>Google on "blood oxidation level dependent signal" and you get a lot
>of good hits. The functional MRI (fMRI) imaging signal that is
>recorded depends on blood oxygen level. Therefore the level
>(magnitude) of that signal is called "blood oxygenation level
>dependent".
Maybe this is also relevant for HEG (HemoEncephaloGraphy) which
estimates the frontal activity levels via near IR spectrometry and
blood oxygenation.
Jeff
