biological explanation of schizophrenia tutor2u

Schizophrenia has a large number of clinical characteristics. Biological explanations for schizophrenia: genetics, the dopamine hypothesis and neural correlates. The labelling theory is a flawed explanation of the cause of schizophrenia as it does not consider any biological factors that could contribute to the development of the disorder. However, the diathesis-stress model doesn't claim this. 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. Key Concepts: Terms in this set (16) Biological Explanations. The precise and accurate causes of schizophrenia are unknown. Therefore, this explanation is extremely over-simplified and reductionist. Test your knowledge and understanding of the biological approach to explaining and treating OCD including genetic and neural explanations and drug therapy, with this fantastic OCD revision quiz. Reliability and validity in diagnosis and classification of schizophrenia, including reference to co-morbidity, culture and gender bias and symptom overlap. Cognitive explanations aren't offered as an alternative to biological explanations of schizophrenia. The dopamine hypothesis is an explanation for schizophrenia, which believes that the disease is caused by increased levels of the neurotransmitter. But mostly it has biological and genetic roots. Includes diagnosis and classification, biological explanations, psychological explanations, biological treatments, psychological treatments, and the interactionist approach. The Neuropsychology of Anxiety. In the 1970’s scientists were also starting to find other explanations for sz such as genetics resulting in the Biological explanation of sz which then over took the Psychodynamic approach and discredited a lot of the research done in the filed of explanation. The risk of schizophrenia increases if a person inherits specific variants in a gene related to “synaptic pruning”—the elimination of connections between neurons—according to a study from Harvard Medical School, the Broad Institute and Boston Children’s Hospital. Drug therapy is supported by the Dopamine Hypothesis and lends support to the biological explanation of schizophrenia. It causes a range of different psychological symptoms. Make sure to reference the impact that these strengths/weaknesses have on the AO1 you’re discussing. There seems to be a chemical imbalance in the action of the neurotransmitter dopamine in the brains of those with schizophrenia. STUDY. Some of these are Thought control, delusions of passivity, control and influence, and hallucinatory voices. The approach argues that mental disorders are related to the physical structure and functioning of the brain. Lower social classes tend to include those who have experienced unemployment and those living in deprived areas. This suggests that genes play a significant role. However, it has been revised and added to multiple times, as scientific advancements have been made. AQA A Level Psychology- Schizophrenia key terms and definitions. Reliability and validity in diagnosis and classification of schizophrenia, including reference to co-morbidity, culture and gender bias and symptom overlap. Test. This can include theories, therapies, or research. Introduction Psychological explanations of schizophrenia Schizophrenia is a psychotic disorder as it often involves a loss of contact with reality and a lack of self insight. According to the cognitive school of thoughts, these are the causes of this disorder rather than the consequences of schizophrenia. Schizophrenia is characterized by the distortions in thoughts, attention, language, and perception. Biological explanations for schizophrenia: genetics, the dopamine hypothesis and neural correlates. Political and Religious thinking may go high when you have schizoid episodes. Created: Jan 6, 2018. Doctors often describe schizophrenia as a type of psychosis.This means the person may not always be able to distinguish their own thoughts and ideas from reality. The closer the genetic relationship the more likely the people are to share the disorder. Schizophrenia is a disabling, chronic, and severe mental illness that affects more than 21 million people around the world. These negative schemas th… Psychological-explanations-for-schizophrenia. Remote learning solution for Lockdown 2021: Ready-to-use tutor2u Online Courses Learn more › Info. PLAY. … It only shows that these people have a predisposition (an increased risk). It was developed by the author in collaboration with Jeffrey Gray and numerous colleagues, (e.g. Describe and evaluate one or more biological explanations of schizophrenia Research has shown that schizophrenia is heredity and can runs in families. This suggests social class may be involved in some way in the development of schizophrenia. Get this resource as part of a bundle and save up to 71%. Dopamine is a neurotransmitter, the levels of which seem to be associated with schizophrenia symptoms. The two types of explanations are COMPLEMENTARY - they work together. Updated: Jan 8, 2019. pdf, 356 KB. Learn. Created by. [Gray, J.A., McNaughton, N., 2000. All antipsychotics affect neurotransmitters in the brain to bring about changes in symptoms. Psychology - Biological Explanations for Schizophrenia. Flashcards. Beck’s negative triad Beck (1987) believes people become depressed because the world is seen negatively through negative schemas (see below), which dominate thinking and are triggered whenever individuals are in situations that are similar to those in which negative schemas were learned. ICD-10 codes schizophrenia as F20 and lists 7 types of schizophrenia. Beck perceived negative schemas as developing in childhood and adolescence, when authority figures, such as parents, place unreal demands on individuals and are higim critical of them. Emphasises the role of inherited factors and dysfunction of brain activity in the development of a behaviour or mental disorder. AO2: Ability to evaluate the strengths and weaknesses of the AO1 content, whether it be a therapy, theory or research. G. Gründer, P. Cumming, in The Neurobiology of Schizophrenia, 2016 Abstract. Evidence for the dopamine hypothesis:. Gottesman found that schizophrenia is more common among biological relatives of a person with schizophrenia and also that the closer the degree of genetic relatedness, the greater the risk. The biological explanation is deterministic if it claims that schizophrenia is inevitable in people with the wrong genes. Hyperdopaminergia: This refers to higher than usual levels of dopamine in the subcortex (central areas of the brain). Gravity. This school of thought explains that different features of schizophrenia appear when the individual experience them. When any person is confronted by any sort of delusions or hallucinations he turns to some closed one, but when it is denied by them then the patient thinks that th… Report a problem. Psychological-explanations-for-schizophrenia. One biological explanation is that schizophrenia is inherited/passed on through genes Twin studies are used to investigate relative contributions of genes and environment in the development of schizophrenia – if there are purely genetic influences then a 100% concordance rate with monozygotic twins is expected, and 50% with dizygotic twins This idea is based on the role of chemical messengers between nerve cells called neurotransmitters. Paranoid schizophrenia (F20.0) is the most common type, tending to develop later and having more positive symptoms.Hebephrenic (or disorganised) schizophrenia (F20.1) develops earlier and involves confused emotions.Catatonic schizophrenia (F20.2) is very rare and sufferers are motionless and silent. For example, Frith (1992) f ound that cognitive deficits are linked to abnormalities in areas of the brain that use dopamine , especially the prefrontal cortex . The main biochemical explanation for schizophrenia is the dopamine hypothesis. This review provides a historical perspective on a model for schizophrenia based on results of experiments derived from learning theory. This twin study was carried out by Irving Gottesman (left) and James Shields in the 1960s. Schizophrenia (Biological explanations (The dopamine hypothesis…: Schizophrenia (Biological explanations, Diagnosis & classification of schizophrenia, Psychological therapies, The Interactionist approach, Psychological explanations, Biological therapies) Individuals will have schizoid symptoms in families having this disorder. Social Causation: People in the lowest social classes and groups such as immigrants have a higher incidence of schizophrenia in the UK. This is linked with positive symptoms such as hallucinations. About this resource. Schizophrenia is a state of confused state of feeling in thinking, feeling and emotions. Psychological-explanations-for-schizophrenia. Schizophrenia is a serious and chronic mental illness that impairs a person's thoughts and behavior, and if untreated, can include psychosis. Write. It was a key piece of research that established that there is a genetic component to the mental illness schizophrenia. Negative symptoms of schizophrenia, including speech poverty and avolition. When an idea is backed up by a well-researched scientific theory, it has construct validity. AO1: Ability to outline and describe enough information/theory about the topic in order to get full marks (4). A number of factors have been proposed as being linked to schizophrenia: genetic, psychological, endocrinological, metabolic, environmental, virological, and auto-immunological factors, as well as neurotransmitter systems and structural disorders of the brain. Spell. The main biological explanations of schizophrenia are as follows: •€€€€€€€€genetics – there is considerable evidence of a genetic predisposition to develop schizophrenia •€€€€€€€€biochemistry – the dopamine hypothesis argues that elevated levels of dopamine are related to symptoms of schizophrenia •€€€€€€€€neuroanatomy – differences in brain structure (including ventricle size, brain … Schizophrenia is a severe long-term mental health condition. Explain why the labelling theory is a flawed explanation for the cause of schizophrenia. Match. For example, in terms of biochemistry – the dopamine hypothesis argues that elevated levels of dopamine are related to symptoms of schizophrenia. Another psychological explanation for sz is the cognitive explanation. docx, 169 KB. iaedmond123.

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