PSYC 2310 Chapter 12: PSYC 2310 Chapter 12 Notes.docx

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2310
• Professor: Jeffrey Yen

Document Summary

Emotional or hostile aggression: aggression in which one inflicts harm for its own sake on another. A jealous lover lashing out or soccer fans having a brawl in the stands after a game. Instrumental aggression: aggression in which one inflicts harm in order to obtain something of value. Killing other in self-defence or to gain money or attention. Men who had committed violent crimes, such as rape and assault in prison had higher testosterone levels than men who had committed property crimes, such as burglary and theft. Similarly, men with higher testosterone levels violated more rules while in prison. 50% of the variance in aggression may be caused by genetics factors. Children who are highly aggressive early in life are more likely to be aggressive later partaking in serious aggressive acts including criminal behaviour. Studies have shown that aggression is stable over years.