The Nature of Aggression (or is it Nurture?)
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
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The nature vs. nurture topic has been a continuing debate for many aspects of human behavior, including aggression. There have been many studies indicating that chemical relationships between serotonin, testosterone, and frontal lobe brain chemistry may play a key role in determining aggressive behavior, while other studies have explored environmental and societal factors that have been said to control patterns in human aggression.
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 (1). 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
It was not a topic that was brought up earlier, because there was tainted history of using biology to figure logistics of criminal behavior. Instead, criminologists look at social and environmental factors such as poverty rates, drug/weapon accessibility, and socialization. Over 100 studies have shown genes play a role in crime. Kevin Beaver, an associate professor at Florida State University’s College of Criminology and Criminal Justice states approximately 50 percent of a human’s aggressive behavior is comprised of the thousands of expressed genes affected by the environment (Cohen). The other half of a human’s aggressive behavior is usually environmental or social factors such as, neighborhood, wealth, and education. It is important to also know the other factors that “make” someone a criminal because it will also help researcher see what else contributes to criminal activity (Eysenck).
There are two main biological explanations to aggression, neural and hormonal. The neural explanation is the serotonin and dopamine neurotransmitters and how they affect our aggression; the hormonal mechanisms are the testosterone and cortisol chemicals.
Is aggression an innate and deterministic quality from birth, or is it something that one that all can control, as a matter of free will and choice, to be used when we need it in a calculated manner? At birth all people are born with aggression as a survival trait. As we educate ourselves as we have seen in the video “The Truth About Violence” even in an educated culture such as the United States we still have violence. Violent people and we are drawn to violent sports such as cage fighting and football. Even the most mild manner people who don’t like violence in movies, sports or anywhere else can find enjoyment from participating in violence. When a person results to violence I don’t believe they can control the amount of aggression
Aggression is a natural part of human behavior, and can even be adaptive in certain situations. However, when aggression manifests itself in violent behaviors, it becomes problematic. Patterns of aggression change throughout childhood, adolescence, and early adulthood, and these changes usually differ between males and females (Loeber, 1997). Physical aggression is typically greatest early in life and decreases during adolescence, whereas more serious violence tends to increase with age, particularly during adolescence (Loeber, 1997). Despite the changes that occur in aggressive tendencies throughout childhood and adolescence, aggression is seen as a very stable trait, almost as stable as
There are two main arguments supporting the idea that aggression and violence are biological and therefore inevitable in our world. In their essay Genetic Seeds of Warfare: Evolution, Nationalism and Patriotism, Paul Shaw and Wong Yuwa, in a darwinistic approach to human nature , argue that aggression is natural in the animal
During our lifetime every one of us feels anger and aggression occasionally, some more than others, maybe as a child in the play ground or later as an adult when somebody cuts you up when you are driving along. But what causes anger and aggression and why do we all suffer from it? Well there are lots of different theories to what causes aggression and where aggressive behaviour comes from. So throughout this essay I will examine the different concepts and theories from different psychologist and develop and show an understanding of Aggression
After viewing Origins of Human Aggression (The Nature of Things), I learned a lot about origins of human aggression. In the first part of the video, it focused on 2 year old children and how aggression is derived. The video states a study shows that signs of aggression start within the first couple months of a newborn’s life (Maher, Origins of Human Aggression (The Nature of Things). This study within the video I believe is accurate. I was told by my parents that as I grew I began to be more aggressive. The older I got, I began to do things such as: throw objects, hit people, and throw a tantrum if I could not get my way. One time I cried for an hour just so my mother would buy me a pair of shoes. Throwing that tantrum got me my way, but
The nature versus nurture debate is an ongoing debate among social scientists relating to whether ones personality/personal characteristics are the result of his/her inherited genetic traits or the result of environmental factors such as upbringing, social status, financial stability, and more. One of the topics that are discussed among psychologists is the study of violent behavior among people as a whole, and in particular, individuals. Social scientists try to explain why people commit acts of violence through explanation of either side of the nature or nurture schools of thought. However, the overwhelming amount of research done into the relation of violent behavior and the nature versus nurture debate indicated that nurture is the primary explanation to explaining violent behavior because violent traits are learned from adults, someone’s social upbringing is a major factor to why some people are more violent than others, and finally influences from news media, movies, and video games enhance the chance for someone to exhibit violent behavior. In conclusion, violent behavior is a complex issue without a clear explanation that is overwhelmingly supported by the nurture side of the debate.
Physical assault and aggression is the second leading cause of death among 14 to 17 year olds, next to vehicular accidents (Loeber). But why are humans so aggressive in the first place? There are two sides of the debate: Nature, and Nurture. Some say that it’s human nature, genetics that cause most behaviors, while others say that we act as we learned during childhood. This argument applies to aggression as well. Aggression is mainly caused by things during childhood and adolescence where people learn from various sources about aggression, although, human psychology plays a slight factor.
Violence take multiple forms, many of which are covered in the nightly news. Murder, rape, familial abuse, bullying, workplace hostility, armed robbery—all of these are societal problems with far-reaching repercussions. There have long debates and discussions regarding whether nature or nurture influences individual violent behavior. People are concerned about what makes an individual to engage in violent behavior such murder or burglary among other types of crimes. They are also concerned about what makes people stop such behavior. However, there is no precise conception whether nature, nurture or both influence violence. Some people assume that, violent behavior results from individual’s life experiences or upbringing also known as nurture. Others feel that violent behavior is more complex and results from individual’s genetic character or nature. In other words, it is not clear whether violent behavior is inborn or occurs at some point in persons’ lives, but even it’s hard, emphasizing one and ignoring other influences is always an unwise way to go.
From the dawning of man, violence has always been one of the defining characteristics of humankind. Throughout all of history we see evidence of man's tendencies toward acting violently in response to his emotions - everything from anger, fear, to just plain enjoyment. But to where can we trace the true origin of violence, the place where it all begins? Does the root of violence stem from societal and cultural values or can we point the finger at a deeper cause, one with a neurobiological basis? Can we successfully predict the violent tendencies in individuals, and if so, how? And if there is a biological basis for violent behavior, where does that leave our society and our
There are clearly no simple genetic or hormonal factors that can explain the variation in aggressive in males and females. Studies of human males suggest that there is at most a small genetic component to aggression, but a greater one for personality traits associated with such behavior. The biological mechanisms translating the message in the genes into antisocial or criminal behavior are not known. Therefore, there is clearly no simple aggressive gene effect. Many genes are likely to be involved, and each may have a weak effect on aggressive behavior. A direct genetic effect on aggression, for example, may determine how quickly an individual responds to aggravation. Aggression may also be influenced indirectly; for example, a man's size and strength may affect the way he behaves and how others react to him. (Turner, 253)
Social Psychological Theories of Aggression Social learning theorists propose that behaviour, such as aggression is learnt through observation, imitation and behaviour shaping. This behaviour is learnt automatically through observation of male and female role models, for example parents, peers and media characters. Whether or not this behaviour is imitated depends on the type of reinforcement that the role model receives. Vicarious reinforcement involves the outcome of a role models behaviour, for example if a child observes a parent acting aggressively and receiving positive rewards for they are more like to be imitate this behaviour in the future, than they would be if the role model
This is not to deny, however, that there is a relationship between aggression and biological influences. Complex neural systems in the brain when stimulated electrically or chemically can promote aggressive behaviors. Similar effects are noted with certain types of head injuries. Head injury victims may react with rage distinct from ordinary anger (Rosenbaum, Hoge, Adelman, Warnken, Fletcher, & Kane, 1994). Their rage may
The Anatomy of Violence presents the latest findings in the field of biological psychology and human behavior, focusing on brain chemistry, as it relates to human behavior, and offers great insight on how brains of those who commit acts of violence or crime differ from those who do not. Mr. Raine provides solid scientific data regarding the ways in which brain chemistry differs and how injuries can alter personality using medical MRI and fMRI and various neurotransmitter studies. A clear connection between human biology and behavior emerges, bringing