Abstract
This article gives a short overview on the life and achievements of Jaak Panksepp. Jaak Panksepp dedicated his life to the study of mammalian emotions. By means of electrical stimulation of the brain and psychopharmacological challenges he carved out seven primary emotional systems being highly conserved across different species of mammals including homo sapiens. The primary emotional systems are called SEEKING, CARE, LUST, PLAY (positive emotions), and FEAR, RAGE, SADNESS (negative emotions). While his early career was characterized by the direct study of these primary emotions in mammals, in his late career he invested more and more time in applying his knowledge to different fields of psychology including personality neuroscience and psychiatry.