Schizophrenia is a long-term mental health condition that causes a range of different psychological symptoms which is caused by a mixture of genetic and environmental factors such as changes in the brain chemicals and stressful life experiences such as:
More Essay Examples on Dopamine Rubric To prove this, amphetamines drugs that increase dopamine levels in the brain were administered to rats in small dosages Randrup et al. PET brain scans further showed that dopamine levels had infact increased. The main critism facing the conclusions of such studies is that humans and animals have different physiology.
This thus limits generalisability. However, similar investigations have been carried out on humans, despite ethical concerns, but yielding consistent results.
Anti-psychotic drugs — most effective being Clozapine — were created, so as to reduce dopamine levels. These have shown to be highly effective in calming patients down and helping them cope with the illness, especially concerning hallucinations and delusions.
However, there is a lot more to the disorder i. This suggests that there is more to the disease than just increased levels of dopamine.
Before disregarding the Biological perspective however, it is essential to consider that glutamate, serotonin and GABA Gamma — Amino Butyric Acidother neurotransmitters found in the brain, have been suggested to also have an affect in the development of mental illnesses, but evidence is limited.
The Biological perspective also takes into consideration the view that there could be a predisposition to schizophrenia. In fact, Alastair provides evidence for this idea via his meta-analysis of twin studies conducted in the UK and Japan since Similar research has been conducted globally, ensuring that these conclusions are generalisable.
However, some Psychologists argue against this saying that because twins share the same pre-natal and sometimes post-natal environments; this is what is really causing schizophrenia, not genes. Despite, these arguments, a predisposition to schizophrenia is still evident. Most Psychologists do believe that there is a predisposition to schizophrenia and that environmental stressors trigger its development.
This is known as the Diathesis Stress Model, whereby both perspectives are seen to equally contribute in understanding schizophrenia and other mental health issues. Environmental stressors come in many forms, for example poverty, racial discrimination, communication with families, stereotyping by individuals in society and the use of drugs — all of which are expanded on in the following few paragraphs.
Firstly, the Sociogenic Hypothesis explains how poor socio-economic conditions create stress that may trigger schizophrenia in people. Usually such individuals have to deal with poverty at a daily basis and they live in urban areas — known for the high levels of pollution and noise.
The rates of schizophrenia were examined in 3 ethnic minorities in Israel — European, North African and Middle Eastern.
They experienced a considerable amount of discrimination and social prejudice — a form of stress — that should lead to the movement of these individuals down the social ladder. However, this was not the case. For example, the prevalence of Schizophrenia in Africans from the Caribbean, which is their native country, was much lower compared to those who had immigrated to London Hutchinson et al.This free Health essay on Essay: Schizophrenia is perfect for Health students to use as an example.
.The biological approach believes that the person’s genes control his/her behaviour. It proves that illnesses such as schizophrenia are inherited because of the person’s genes, which can be controlled using antipsychotic Medicines.
Schizophrenia & the Biological Perspective Essay. Q - Schizophrenia & the Biological Perspective Essay introduction. Does the Biological perspective in abnormal psychology make other perspectives obsolete? As part of Unit 1's Biological Approach, you will have looked at a twin study (Gottesman & Shields) and an adoption study (Kety et al.) which both claim that there is a genetic aspect to schizophrenia and that the disorder is passed on, biologically, in families.
Jun 07, · Discuss biological explanations of schizophrenia (24 marks) The biological approach assumes that schizophrenia has an organic cause, though this doesn’t deny the role of psychological factors in the onset of the disorder.
Biological basis of schizophrenia. Across the findings within the literature, the question of whether schizophrenia is associated with structural or functional abnormalities of the nervous system, or both, appears to have become the principal focus in many of the biological studies of schizophrenia.
Essay The Theories Of Biological Psychology. Name 2 psychologists who used this approach Charles Darwin.
Knight Dunlap. Outline the key assumptions The main assumptions of biological psychology is that behaviour is influenced by brain anatomy, genetics and biochemistry and that there is a direct relationship between behaviour and biology.