Outline and evaluate biological explanations for aggression (24) The biological explanation for aggression states that aggression is innate behavior in people and the environment around them does not cause it. Neurotransmitters in the brain‚ chemicals that allow impulses to be transmitted from one area to another‚ can be used to explain why some people are aggressive. There is evidence to suggest that the neurotransmitters serotonin and dopamine are linked to aggression‚ low levels of serotonin
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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 psychological explanations for schizophrenia (24) One psychological explanation of SZ was put forward by Bateson et al (1956) who looked at childhood as a base for developing SZ‚ for example the interactions children have with their mothers. His explanation‚ the Double Bind theory‚ states that schizophrenia can occur due to conflicting messages given from parents to their children‚ for example when a parent expresses care but does so in a critical way. This means that the child
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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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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 different types of attachment’ Ainsworths ‘strange situation’ was developed as a tool to measure types of attachment in infants. The experiment was carried out in a purpose build playroom and children were observed with cameras. It consisted of several situations‚ standardised for all those who took part. Each condition involved variation of the presence of the mother and/or a stranger‚ over 3 minute intervals. During these different conditions‚ the child’s behaviour was monitored
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Functionalism is a consensus structuralist theory‚ which sees the source of crime and deviance located in the structure of society. Although crime and deviance might be stigmatised in society‚ some sociologist think it is important to have it occur and there are some benefits to it. Durkheim (1982) argued that crime is an inevitable feature of social life‚ because individuals are composed to different influences and circumstances‚ and so not everyone can be equally committed to the shared values
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One theory of attachment that behaviourists such as Dollard and Miller (1950) have put forward is Learning Theory‚ this theory believes that all behaviours are acquired though learning which takes place through classical and operant conditioning. Learning theory provides explanations on how attachments between the caregiver and baby are formed‚ one explanation is through classical conditioning; learning by association. This is based upon Pavlov’s work with dogs in 1927. Before conditioning an unconditioned
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Describe and Evaluate Bowlby’s theory of attachment. An attachment refers to ‘a close two-way emotional relationship between two people. In Child Psychology this focus is on the main care-giver most commonly (but not exclusively) our mothers.’ According to Bowlby‚ children develop an attachment to one main caregiver which is qualitatively different than any others e.g. warm and continuous relationship with mother. This attachment has to occur within the sensitive period (6-24 months) or there could
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Outline and evaluate the evolutionary explanation for gender roles Gender refers to culturally constructed distinctions between femininity and masculinity. Individuals are born female or male but they become feminine or masculine through complex developmental processes that take many years to unfold. For example‚ women usually look after babies while men are the providers. The evolutionary approach argues that gender role division appears as an adaptation to the challenges faced by the ancestral
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