[garbre]

So they stimulated norepinephrine release in rats in an fMRI machine and they found it increased "activity" in sensory processing and the amygdala. Presumably it would increase "activity" in "higher" regions of the brain, except those only exist to a limited extent in rats.

For most humans, the question about stress is, "what is the effect of chronic stress?" which this paper did not answer. I'm sure it was still a good study, largely because it's demonstrating concrete mechanisms for things we think are happening anyway, but I can't confirm that because it's behind a paywall, like most publicly-funded research.

[kranner]

Preprint PDF: https://www.researchgate.net/profile/Johannes_Bohacek/public...