Outline and evaluate biological explanations of obesity Various explanations can be provided for the reasons of obesity‚ from biological explanations‚ to neurological and evolutionary theories. Even socio-economic reasons could give insight into why some people have a higher likeliness of obesity Evolutionarily‚ the thrifty gene hypothesis provides insight as to why many suffer from obesity‚ as it suggests that our current genes are no longer suited to our new environment. Modern day society is
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Outline and evaluate one or more social explanations of aggression. Aggression has been defined as ‘any form of behavior directed towards the goal of hurting or injuring another human being or animal that is motivated to avoid such treatment’ (Baron). Various types of aggression have been identified; person-orientated aggression‚ which is when the main goal is to harm another person and instrumental aggression‚ when aggression is used in order to achieve a desired goal. An important
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Evolutionary psychologists believe that aggression is linked through genes and has been maintained biologically as people have adapted to the changing physical and social demands of the environment. In the past‚ males that found other mates desirable found it necessary to compete with other males. The most successful male was the most aggressive. This aggressive behaviour made sure that the fittest males survived and were more successful in securing mates and passing on their genetic fitness to their
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Outline and evaluate psychological explanations of schizophrenia (24 marks) Brown and Birley studied stressful life events in the role of relapse in schizophrenics. They found that 50% of people experience a stressful life event e.g. death‚ relationship break-up‚ job loss etc. in the 3 weeks prior to a schizophrenic episode. A control sample reported a low and unchanging level of stressful life events over the same period. However not all evidence supports the role of life events. For example‚
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Outline and evaluate Kants categorical imperative (25 marks) Kant’s categorical ethics is a deontological theory of ethics‚ this means that the actions are either intrinsically right or intrinsically wrong‚ this is due to absolute law; the outcome of the situation is not important to Kant’s theory even if the outcome may be good. Kant has a deontological theory because he believes that you must stick to the moral rules and beliefs that you have no matter what the turn out. An example of this would
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Outline and evaluate theories of formation‚ maintenance and breakdown of relationships‚ 25 marks. The reward/ need satisfaction model (Byrne and Clore 1970) is a good example of how relationships are formed. It is based on the behavioural model which is influenced by both operant and classical conditioning where we form relationships due to direct or indirect rewards. These could be money‚ status‚ companionship‚ sex etc. However this theory is limited as it doesn’t take into account that participants
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Outline and evaluate the biological explanation of depression. Biological explanation of depression can be explained by neurotransmitter dysfunction. Neurotransmitters such as noradrenalin and serotonin have been shown to be linked with depression. Bunney at al (1965) found that there was low levels of noradrenaline function in the brain of depressed individuals. Also‚ post mortem studies found increased noradrenaline receptors in the brains of depressed suicide victims. When there is low noradrenaline
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*Critically evaluate Evolutionary Psychology theory as an explanation for sex differences in sexual j*ealousy. Discuss evidence for and against this explanation The subsequent part of this essay will now focus on the evidence against the theory of Evolutionary Psychology and will look at arguments in contradiction of this. The topic this essay will focus on in the argument against Darwin’s evolutionary psychology theory as an explanation for sex differences within sexual jealousy is Social Psychology
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Describe and evaluate evolutionary explanations of gender. [8 + 16] During the evolutionary adaptation time period‚ between 10-40 thousand years ago‚ our ancestors were hunter-gatherers. This created a division between men and women. The men would hunt for food and the women would be in charge of the domestic duties such as cleaning and cooking. Doing the domestic chores would have kept women more protected‚ as it is less strenuous and would have guarded the camp whilst the men were out hunting
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Discuss genetic explanations for aggression. Early research concentrated on chromosomal abnormalities but no specific genotype has been associated with aggression. Genes determine how much testosterone a person’s body produces and how quickly it circulates around their body. Genes also determine the synthesis of testosterone receptors‚ and how many and how sensitive such receptors are. The gene called monoamine oxidase A (MAOA) produces an enzyme which regulates the metabolism of serotonin in
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