Is there anything that backs up the assumption below? It seems to make sense, but I'm wondering if it's possible the change in activity with the drug(s) could also mean that the areas are operating independently (on separate tasks switching so quickly to be essentially parrallel, or operating on an unconscious task).
"... to look for correlations in blood flow between two or more regions. When correlations are found, the assumption is that these brain regions are communicating and are engaged in the same cognitive processes ..."
Is there anything that backs up the assumption below? It seems to make sense, but I'm wondering if it's possible the change in activity with the drug(s) could also mean that the areas are operating independently (on separate tasks switching so quickly to be essentially parrallel, or operating on an unconscious task).
"... to look for correlations in blood flow between two or more regions. When correlations are found, the assumption is that these brain regions are communicating and are engaged in the same cognitive processes ..."