Organizing Your Gut Instincts
The human body's longest nerve, the vagus nerve, is that the autobahn between the two scientists have referred to as the"two minds" -- the one in mind and another on your gastrointestinal tract. The nerve is key for telling you that the tank is full and to put the fork down because it helps synthesize biochemical signals from the gut to the most primitive part of the brain, the brainstem.But in this animal research, researchers have discovered a greater goal behind this intricate circuitry between the vagus nerve. This"gut-brain axis" can help you remember where you ate by directing signs to some other portion of the brain, the hippocampus, the memory center.After our stomachThe scientists feel that this gut instinct, that link between spatial consciousness and meals, is likely a neurobiological mechanism that dates back ages to when the definition of food has been a herd of bull running away from your nomadic hunters who tracked them.Back then especially, it would be critical for your gut to work with the mind such as a Waze or Google Maps navigation program, stated Scott Kanoski, an assistant professor of biological sciences in USC Dornsife and corresponding author of the paper. Those drifting early people could remember a website where they had discovered and collected food and return for more."When animals find and consume a meal, for example, the vagus nerve is activated and this global positioning process is engaged," Kanoski said. "It might be advantageous for an animal to recall their external surroundings so they could have food ."The analysis was published on June 5.To examine this gut-brain connection, the research team conducted the research on rats. They saw that rats with their gut-brain vagus nerve pathway disconnected could not recall info about their surroundings."We found impairments at hippocampal-dependent memory once we cut off the communication between the gut and the brain," explained lead author Andrea Suarez, a PhD candidate in biological sciences. "These memory deficits were coupled with damaging neurobiological results in the hippocampus."Specifically, the disconnected pathway influenced markers in the brain which are crucial for the increase of new neural connections and fresh cells.However, it did not seem to affect the rats' stress levels or their weight, the scientists noted.