"It's joy, it's positive engagement with life, " said Jaak Panksepp, a Bowling Green University psychology professor.
“笑是欢乐，是积极地参与生活，”鲍林格林大学（Bowling GreenUniversity）心理学教授亚普·潘克斯普（JaakPanksepp）说。
But to Washington State University neuroscientist Jaak Panksepp, this supposed pleasure center didn't look very much like it was producing pleasure.
但华盛顿州立大学的神经科学家Jaak Panksepp认为，被视作大脑快乐中枢的地方看起来并没有产生快乐。
Jaak Panksepp of Washington State University, who studies laughter-like responses in animals but didn't participate in the new work, called the paper exciting.
华盛顿州立大学的雅克·潘克·塞普专门研究动物的笑声反应，但没有直接参与这项新的研究。他称研究报告令人兴奋不已。
Jaak Panksepp of Washington State University, who studies laughter-like responses in animals but didn't participate in the new work, called the paper exciting.
华盛顿州立大学的雅克·潘克·塞普专门研究动物的笑声反应，但没有直接参与这项新的研究。他称研究报告令人兴奋不已。
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