See What Happens When You Tickle a Rat | National Geographic

By studying how rats react to tickling, scientists are gaining insight into how a brain processes and responds to the sensation. Video courtesy Humboldt University of Berlin ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Why do you laugh when you’re tickled? Scientists at Humboldt University of Berlin are studying rats to try and solve the longstanding mystery. Given the right conditions, and enough back and belly tickling by a researcher, ratscan come to associate a researcher's cotton gloved hand with the sensation of being tickled. Tickling makes them “giggle,” albeit in frequencies too high for human ears to hear. The rats develop a fondness for the human hands, chasing their scurrying fingers in circles. The scientists observe the rat ticklishness, and track how their brain processes the sensation, hoping to uncover clues about the laugh-inducing feeling. READ: What Happens When Scientists Tickle a Rat http://news.nationalgeographic.com/2016/11/rats-tickling-brains-moods/ See What Happens When You Tickle a Rat | National Geographic https://youtu.be/d-84UJpYFRM National Geographic https://www.youtube.com/natgeo
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