The vagus nerve is necessary for the rapid and widespread neuronal activation in the brain following oral administration of psychoactive bacteria
Aadil Bharwani, Christine L. West, Kevin P. Champagne-Jorgensen, Karen‐Anne McVey Neufeld, Joseph Ruberto, Wolfgang Kunze, John Bienenstock, Paul Forsythe
This study shows that live Lactobacillus rhamnosus induces rapid brain activation via the vagus nerve, while chronic exposure leads to distinct long-term brain changes.
bioRxiv · Dec 2, 2019Neuroscience