Neural and Hormonal causes of aggression.
The biological explanations of aggression say that aggression is caused by differences in the biological make-up of individuals. One example of these biological differences that could cause aggression is neural mechanisms.
Neurotransmitters Neurotransmitters are chemicals which trigger a response in the brain, serotonin and dopamine are both examples of neurotransmitters which are thought to influence aggression levels.
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This is because serotonin is thought to inhibit our response to emotional stimuli that might otherwise lead to aggressive behaviour, so low levels of serotonin mean we will respond aggressively more often.
Dopamine — We are unsure of whether there is a causal link between dopamine and aggression, however research has found a relationship between the two.
For example, Lavine found that an increase in dopamine levels through the use of amphetamines was associated with an increase in aggressive behaviour, suggesting that higher levels of dopamine correlate with higher levels of aggression.
Evaluation Mann et al — found that after being given dexfenfluramine, which reduces serotonin levels, participants reported higher levels of aggression. However, this was only found in males. Bond — said that if low levels of serotonin cause aggression then drugs that increase the level of serotonin should result reduced aggression, and her research found exactly this.
Dopamine levels a consequence of aggression — Couppis and Kennedy found that in mice dopamine levels will increase and act as a reward during an aggressive act.
This could mean that the increased levels of dopamine are not a cause of aggression but a consequence of it.Neural and hormonal mechanisms in aggression, including the roles of the limbic system, serotonin and testosterone.
Genetic factors in aggression, including the MAOA gene. Neural Mechanisms Serotonin Much of the research on the role of neurotransmitters on aggression has focussed on serotonin activity. A number of research approaches have .
Neural mechanisms and hormones as a cause of aggression (serotonin, dopamine, testosterone, cortisol) for A level psychology for neural mechanisms and hormones as an explanation for aggression. Nov 17, · A strength of neural mechanisms in aggression comes from Badawy (), who claims that the influence of serotonin on aggressive behaviour may be important in explaining the relationship between alcohol and aggression.
He found alcohol consumption depleted serotonin levels. Neural, Hormonal, and Genetic Factors in Aggression NEUROTRANSMITTERS Serotonin HORMONAL MECHANISMS GENETIC FACTORS Cortisol - Mediating effect on aggression-related hormones.
Nov 17, · Therefore, the neural explanation of aggression can be criticised for being reductionist as it fails to consider alternative explanations.
(A02) A strength of neural mechanisms in aggression comes from Badawy (), who claims that the influence of serotonin on aggressive behaviour may be important in explaining the relationship .
May 15, · The biological explanations of aggression say that aggression is caused by differences in the biological make-up of individuals.
One example of these biological differences that could cause aggression is neural mechanisms.