Every night on the news there are reports about murders, wars, and rapes. But the news isn't the only place where people encounter violent or aggressive behavior. Driving home from work, people get cut off and cussed at on a daily basis. At school, children fight over who will be the first in the lunch line. On the street, people get pushed out of the way if they are not walking fast enough. The list could go on and on and on. The point is that humans exhibit aggressive behavior on a regular basis. However, does anyone know why people display these behaviors? Why do certain people seem more aggressive? Is there just one thing that controls when and how aggressive someone becomes? These are all questions that researchers have been addressing for many years. In fact there has been quite a debate over what causes people to be aggressive. However, in order to try to understand where aggression may stem from, you must understand how aggression is defined as well as all of the possibilities that may cause it.
The argument for nature surrounds the possible biological reasons for why human aggression is exhibited. The reasons for why there is aggressive behavior in humans include a range of hypotheses. Aggression may have a chemical, hormonal, or genetic basis. Research has shown that stimulation of certain parts of animals' brains leads to aggression. Stimulation of other parts stops aggression . Some researches believe that it stems from low levels of serotonin. Terrie Moffitt and colleagues studied the blood serotonin levels of 781 21-year-old men and women. The researchers report that "in this study, elevated whole blood serotonin was characteristic of violent men." (Low brain levels of serotonin, but high levels of blood serotonin, are associated with behavior disorders-apparently because of serotonin's different origin and function in blood and brain.) The violent men's mean serotonin level was .48 standard deviations (SD) above the norm for males as a group, and .56 SD above the mean for non-violent men. Among female subjects, no relationship between serotonin levels and aggression was seen . Others seem to think that it may be due to testosterone. High testosterone (male sex hormone) is associated with more unfaithfulness, more sex, more divorce, more competitiveness, and anti-social behavior . And still others believe that it may stem from a specific gene. A large survey of adopted children has found that living with an adoptive parent who committed crimes is less risky than merely having the genes from a person who committed crimes .
The Frustration-Aggression Hypothesis model states simply that: "Aggression is always a consequence of frustration." and "The existence of frustration always leads to some form of aggression", where Frustration is blocking a path towards the goal and Aggression is a series of actions whose goal response is injury to another organism or its substitute . When a human being notices that his way to a goal is blocked, aggression arises. Here aggression arises because the person is frustrated . Unfortunately, the second part of this sweeping claim is patently false. Frustration may make you bite your tongue, think about something else, or laugh it off. Heavily influenced by behaviorism as well as by Freud, frustration-aggression theorists define frustration as the thwarting of an action that would have produced reward or gratification .
I chose to write about the concept of aggression, more specifically aggressive behavior in adult patients in the Emergency Room. Aggression is defined as behavior aimed at causing harm or pain, psychological harm, or personal injury or physical distraction as per the New Oxford American Dictionary. As a staff member in the ER I have been exposed and also witnessed hospital staff exposure to aggressive or violent behavior from patients and family far too many times. I often find myself asking, why do they act like that? I take this opportunity to do some research on the topic and answer some of my questions. Some of the provoking factors below maybe identified but other times the signs are not recognized.
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According to Lorenz' Hydraulic Model of Motivation, the degree of consummatory response is a function of the amount of accumulated action specific energy and the sign stimuli to which the animal is exposed. Action specific energy accumulates in a reservoir until released by the appropriate stimulus, represented by weights on a scale pan, or until the pressure on the valve causes an action pattern to occur spontaneously (vacuum activity). The consummatory response or fixed action pattern(s) released vary depending upon how much action specific energy is released from the valve. Hydraulic Theory predicts that aggression is inevitable - the accumulating energy must find an outlet, humans and animals will actively 'look for fights', after an attack an animal / human will become less aggressive, and animals reared in isolation will show aggressive behavior . This model requires something to trigger the aggressive behavior, but like Freud, appears to somehow be innate in that it the aggression is inevitable.
Aggression Is A Behavior Psychology Essay
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The concept of aggression is broad, and includes many categories of behavior (street crime, child abuse, war, etc.). Theories on aggression are commonly categorized according to the three variables that are present whenever any aggressive act is committed.