What makes people suddenly just lash out and take their aggression out on other people? Why do people develop such aggressive behaviors? To better understand how a relatively normal person gets so aggressed, we have to develop a theory on what causes aggression. I will try to hypothesize how biological factors, frustration, crowding, and averse events affect a person’s personality in the cause of aggression. I will be using aggression as the independent variable and biological, frustration, crowding, and adverse events as the dependent variable.

The first psychologist to study the cause of aggression was Sigmund Freud, the founder of psychoanalysis. He believed that a person has an instinct for aggressions that can either be directed inward (depression or suicide),

Frustration also has a big role in the affect of aggression on personality. This theory, which is just now starting to be accepted by psychologist, makes a big link between aggression and frustration. When a person notices that his way to a goal is blocked, aggression arises.

A group of researchers at Yale University led by John Dollard developed the frustration-aggression hypothesis. (Northumbria, n.d) In this theory, frustration and aggression are linked in a cause and effect relationship. Frustration is the cause of aggression and aggression is the result of frustration. A variety of experimental studies were performed on the examination of prison populations. The results showed that the higher the frustration level, the more prone the person was to act aggressively or commit a crime.

There are still numerous research studies to better understand aggression. Understanding aggression is the first step in controlling it. I feel that biology plays the biggest role and has the most scientific understanding behind it. As technology advances, we will be able to delve into the brain and understand this phenomenon more closely. Until that day, I feel we will never understand it.

Aversive events can be self-explained. People often become aggressive when they are in pain or are exposed to loud noise, foul odors or just being around something that is irritating. (UWC Class Outline,n.d) An example would be a fight with you girlfriend could cause you to hit her or push her around. Negative Emotions tend to activate angry feelings, thoughts, and memories and cause aggression.

Many people think of crowding as a negative situation. Although every person has his or her own amount of space, it does not always perceive negatively. An example would be if we attended an exciting football game and we all packed onto the bleachers to support the football team. Also, it

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