thephotosocietyのインスタグラム(thephotosociety) - 3月2日 06時47分

Video By: @mclain.david / @thephotosociety
It’s impossible to tickle yourself but you can tickle rats, at least when they feel safe and are in a good mood. It turns out they even make ultrasonic sounds while being tickled, the rat equivalent of laughter. I shot this footage of Neuroscientist Dr. Jaak Panksepp tickling rats in his lab at Bowling Green State University while working on the feature documentary film BOUNCE: How The Ball Taught The World To Play. We were interested in ticklish rats because they offer insights into the unusually complicated question of why play and laughter are so important to humans and other animals. Panksepp, an Emeritus Professor of the Department of Psychology, has been tickling rats for two decades and was the first neuroscientist to prove rats are actually ticklish. This might sound trivial but the implications are quite profound. As Dr. Panksepp recently told Popular Science “This is the only deep scientific approach we currently have to understanding the evolutionary sources of our own emotions, which are very important for deepening psychiatric understanding and treatment of affective disorders.”

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