Jaak Panksepp

Jaak Panksepp (June 5, 1943 – April 17, 2017) was an Estonian-born American neuroscientist, a psychobiologist, the Baily Endowed Chair of Animal Well-Being Science at Washington State University's College of Veterinary Medicine, and Emeritus Professor of the Department of Psychology at Bowling Green State University. He was born in Tartu, Estonia.
Panksepp created the term 'affective neuroscience', the name for the field that studies the neural mechanisms of emotion. He was known in the popular press for his research on laughter in non-human animals.
Panksepp died on April 17, 2017 from cancer at his home in Bowling Green, Ohio at the age of 73.