fMRI of the Amygdala: All In Vein?

Neuroscientists might need to rethink much of what’s known about the amygdala, a small brain region that’s been the focus of a lot of research. That’s according to a new paper just published in Scientific Reports: fMRI measurements of amygdala activation are confounded by stimulus correlated signal fluctuation in nearby veins draining distant brain regions.

The amygdala is believed to be involved in emotion, especially negative emotions such as fear. Much of the evidence for this comes fr

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