Rats enjoy being tickled but, just like humans, only if they are in the mood

The father of evolution, Charles Darwin, once wrote “of laughter from being tickled, the mind must be in a pleasurable condition”. Now researchers have discovered the same is true for rats in a finding that could help shed light on the “mysterious sensation” and also on the basic wiring of the mammal brain. In a series of experiments, the rats found themselves being repeatedly tickled by the hand of a scientist. In a normal situation, they appeared to find this intensely enjoyable. “We tickled and gently touched rats on different body parts and observed a variety of ultrasonic vocalizations [USVs],” the researchers wrote in the journal Science. “Rats seemed to warm up to tickling and vocalized less before the initial interaction than during breaks between interaction episodes. “Play behaviour (rat chasing…


Link to Full Article: Rats enjoy being tickled but, just like humans, only if they are in the mood

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