Biological Theories. There is an extensive focus on the biological vulnerabilities that are assumed to be present in early development. According to studies there are two different sources of vulnerability, the genetic factors and the environmental factors. These factors may influence the prenatal and postnatal brain development (Maddoux & Winstead, 2012).
The Genetics of Schizophrenia. Twin genetic studies and family studies have shown that the risk for schizophrenia is higher in individuals who have a biological relative with the disorder. As genetic relatedness of the relative to the patient becomes more close, the relative’s risk of developing psychotic disorder is higher (Maddoux & Winstead, 2012).
Prenatal and Perinatal factors. Moreover,
The Genetics of Schizophrenia. Twin genetic studies and family studies have shown that the risk for schizophrenia is higher in individuals who have a biological relative with the disorder. As genetic relatedness of the relative to the patient becomes more close, the relative’s risk of developing psychotic disorder is higher (Maddoux & Winstead, 2012).
Prenatal and Perinatal factors. Moreover,