Genetic Basis of Schizophrenia and Delusional Disorder
TITLE
Outline one genetic explanation of schizophrenia and delusional disorder.
ESSAY
🌟Genetic Explanation of Schizophrenia and Delusional Disorder🌟
💥 🌟Basic Outline (1 mark):🌟
💥 Genetic explanation: Disorders like schizophrenia and delusional disorder are believed to have a genetic component, where individuals inherit the disorder from their biological parents.
💥 🌟Detailed Outline (2 marks):🌟
💥 Gottesman and Shields Study: Gottesman and Shields conducted research on the heritability of schizophrenia and delusional disorder. They found a higher concordance rate in monozygotic (MZ) twins, who share 100% of their genetic makeup, compared to dizygotic (DZ) twins.
💥 Concordance Rates: The study reported a concordance rate of over 50% among MZ twins, while DZ twins only showed a concordance rate of around 9%. This stark difference in rates suggests a significant genetic influence on the development of these disorders.
💥 Implications: The higher concordance rate in MZ twins supports the idea that genetic factors play a substantial role in the manifestation of schizophrenia and delusional disorder. This finding suggests that individuals with a family history of these disorders may have an increased risk due to inherited genetic predispositions.
SUBJECT
PSYCHOLOGY
LEVEL
A level and AS level
NOTES
Genetic Explanation of Schizophrenia and Delusional Disorder:
💥 One genetic explanation of schizophrenia and delusional disorder is that the person with the disorder has inherited it from their biological parent.
💥 Gottesman and Shields found a higher concordance rate for MZ twins (over 50%) compared to DZ twins (around 9%).
💥 As MZ twins share 100% of their genetic make💥up, this finding suggests a strong genetic cause for schizophrenia/delusional disorder.