> It can still be a great proxy for thought processing in different areas of the brain It's a great proxy for energy being used in different areas of the brain

> It can still be a great proxy for thought processing in different areas of the brain It's a great proxy for energy being used in different areas of the brain. The concept of 'thought' is not crisply defined, and lots of brain activity doesn't correspond to what we usually mean by the folk idea of 'thought'.