Tomas Ljungberg is a physician and researcher. He has worked for several years in adult and child-and-adolescence psychiatry, and he has also worked for many years in several different research areas like psychopharmacology, neurophysiology, child development and psychotherapy research. He is an associate professor in pharmacology at the Karolinska institute and a former adjunct professor in psychopharmacology at Uppsala university. He is at present working as a senior research supervisor in Region Sörmland.