Aggression

An intentional action aimed at doing harm or cause pain to another living being who is motivated to avoid such treatment


  • Hostile (hot) - intend to harm another person (physically or/and psychologically) motivated by anger and hostility
  • Instrumental (code) - harm for strategic purposes (gain wealth, political gain, protect in-group value)
  • Most aggression is a combination of both

Origins or Aggression

  1. Individual differences or personality traits
    • Narcissism - exaggerated feeling of self-importance
    • Machiavellianism - cunning and manipulative, use other people for their own gain
    • Psychopathy - persistent anti-social behavior
    • Gender - man are more physically aggressive, women display more “relational aggression” (rumor)
  2. Biological Factors
    • Genetic factors (warrior gene/MAOA gene) and (crime gene/CDH13)
    • Underdeveloped or damaged brain areas (damage in orbital cortex)
  3. Situational factors

Social Learning

  • Theory: Bob Doll Experiment - observing and learning aggression

  • Media and Video Games

    • TV characters are 1,000 times more likely to murder
    • Most crime on TV are violent, most crime in real life is non-violent
    • 0.2 correlation with violent action

Video Game Violence Study

  • Method

    • 2 Groups, one is playing a violent game, other is a natural game
    • After play, participants were asked to respond to hypothetical interpersonal conflicts
  • Result

    • There are a higher rate of aggression choice for the violent game group
  • Social Rejection

    • Studies shown that many perpetrators have experienced some sort of social rejection before
  • Unchecked Power

Types of Aggression

  • Violence towards women
    • Chain and India had higher abortion of girls due to one-child-policy
    • Sex trafficking
    • Sexual assaults is a problem all over the world
  • Violence against minorities
  • Dehumanization - the attribution of nonhuman characteristics and the denial of human qualities to out-group
    • Human nature
    • Human uniqueness

How to reduce Aggression

  • Catharsis - the release of a strong emotion such as anger, by expressing it directly
    • DOES NOT WORK to reduce regression
  • Best solution: Face-to-face interaction to resolve regression