József Haller, Ph.D., DSc, studied the neurobiology of aggression for most of his scientific career. He published more than 150 articles in peer-reviewed scientific journals and authored three books on the subject. His last book was Neurobiological Bases of Aggression and Violent Behavior (Springer, 2014). As a leader of the Behavioral Neurobiology Department of the Institute of Experimental Medicine, Budapest, Hungary, he contributed to aggression research by initiating the concept of abnormal aggression in animals, developing two laboratory models of aggression-related psychopathologies, and differentiating the neurobiological bases of normal manifestations of aggression from those of its abnormal forms and violence. His scientific work is widely known and cited in the field. He was recently appointed the head of the Institute of Behavioral Sciences and Law Enforcement, University of Public Service, Budapest, Hungary, where he teaches criminal psychology and conducts research in this field.

Chapter 1. Dissecting the concept of aggression from biology to law enforcement.- Chapter 2. The heritability of aggressiveness and violence-proneness.- Chapter 3. Neurogenetics, genome-wide association and candidate gene studies.- Chapter 4. Social factors of biological change.- Chapter 5. The biology of glucocorticoids - normal and abnormal aggression.- Chapter 6. Glucocorticoids in humans.- Chapter 7. The aggression circuitry in animals.- Chapter 8. Distorted circuitry in violent animals.- Chapter 9. The neurobiology of human aggression and violence.- Chapter 10. Biological factors of psychological change.