With accumulating evidence regarding an extracranial contamination of the near-infrared spectroscopy signal (here, here and here), it would be interesting to use this space to have a friendly debate around that issue…
So, does frontal lobe oxygenation measured by near-infrared spectroscopy represent cerebral oxygenation ?
What do you think ?
Update (14/03/2014 – 14h23): Initially, I wanted to have this debate with colleagues involved in studies related to vasopressors/exercise/whole body heating/etc. However, after a discussion on twitter with researchers involved in neurocognition, you guys are more than welcome to comment ! I am here to learn !