Strengths and Weaknesses of the Biological Model and Environmental Model in Determining the Etiology of Schizophrenia

Kety asked two groups of adoptees: who had schizophrenia, and a matched group who didn’t. The disorder was related in the biological and adoptive families of the two groups of adoptees – this was larger among biological relations of the schizophrenic adoptees than between ones of the controls, this supports the genetic explanation.

Outline and evaluate one or more biological explanations of schizophrenia (8 marks AO1/16 marks AO1)

Those that are recognized increase the possibility only by extremely small quantities. Consequently, these “genome scans” are improbable to offer a whole image of a person’s danger for acquiring a mental disorder like schizophrenia. Additionally, it possibly endures more than genes to instigate the disorder (Stefansson, Ophoff, Steinberg, Andreassen, Cichon, Rujescu, & Kahn, 2009). Experts reflect communications amongst genes and the environment are essential for schizophrenia to grow. Several environmental issues might be comprised, such as revelation to viruses or malnourishment before birth, difficulties during birth, and other not yet recognized psychosocial issues.

Genetics play a role in the development of schizophrenia. When looking closer at the brain chemistry between a person with schizophrenia and a person with out schizophrenia there are

There are two main biological theories which explain the assumed causes of schizophrenia: Genetic and Dopamine Hypothesis.

Aside from genetic studies, it has previously been noted that there are associations between some of the personality traits (which are quantitative in nature and applicable to all human beings) and some categorical psychiatric conditions like depression and schizophrenia [Koorevaar et al., 2013; Guerra et al., 2000]. Identification of the genetic components of personality traits, at the same time as studies are underway to identify genetic components of bipolar disorder and other psychiatric conditions, offer an opportunity to better understand the interactions and components of the biological components that shape psychological experience and psychiatric illness.

This paper defines schizophrenia from a biological and psychological perspective and also provides treatment to help combat symptoms of schizophrenia. This paper has three important contributions. First, by defining and expanding on schizophrenia from a biological perspective, I can identify the nature related predispositions. After expanding from a biological approach, secondly, I will analyze schizophrenia from a psychological aspect by determining if there is any environment or nurturing externals that can result to schizophrenia. Lastly, I will provide treatment details and also reveal early signs to schizophrenia. This paper is important because schizophrenia is an epic mental disease and it is crucially important to bring awareness to the public of how we can limit the illness. It is unclear whether schizophrenia have only a biological background or psychological background, but what was discovered is that both contribute to schizophrenia. Positive and negative treatment can be combatted undergoing pharmaceutical and psychotherapy,

Two Biological Explanations of Schizophrenia There are many biological explanations of schizophrenia. In this essay I will concentrate on the genetic explanation and biochemical explanation of the disorder. There are many studies that look in to genetics and the link to schizophrenia. This is dues to an original finding that schizophrenia runs in families and therefore suggests that genes are responsible for the disorder.

Biological theorists believe that individuals may have a genetic predisposition for the schizophrenia if a close family member has been diagnosed with the disorder. Stress during adolescent years seems to provoke the disorder among individuals who have a family history of the disorder. In addition, this theory suggests biochemical abnormalities related to the dopamine neurotransmitters may also contribute to the illness as the brains neurotransmission of the dopamine is too frequent in occurrence (Comer, 2005). CAT and MRI scans have also indicated that abnormal brain structuring may also play a role in the development of schizophrenia due to a common occurrence of enlarged ventricles within schizophrenia sufferers (Comer, 2005). Various parts of the brain may not develop for function properly which seems lead to Type II schizophrenia. Studies have also pointed towards the idea that exposure to certain viruses before birth may lead to the eventual development of schizophrenia (Comer, 2005).

Researchers favouring the biological explanation look at genetic factors, brain structure and biochemical explanations. Many researchers would suggest that the debate over whether schizophrenia is passed down through genetics is no longer a

Schizophrenia can be passed down thru generations even though there is not a specific gene associated with the disorder. It is considered to be a combination of genes that make a person susceptible to becoming schizophrenic. This information is found mainly thought the study of twins. By having the same genes it can be viewed why genes contribute to the potential of schizophrenia. Even though genetics is a viable factor in the analysis of the cause of schizophrenia there are more supporting factors found in neurotransmitters.

Carl Jung suggested that the presence of toxin x a mystery chemical that he though would eventually be identified. The demonstrated role of genetic factors in schizophrenia also suggested that biochemical’s should be investigated for it is the body chemistry and physiological processes that heredity may have an effect. (G, Davison, J, M,

Schizophrenia is a very serious, long-term disorder that affects about 1% of the world’s population. It affects people anywhere from twenty years old, to forty-five years old. It is known to be one of the most disabling diseases in this age group. Schizophrenia can break down a person’s behaviors, emotions, and thoughts. People who suffer from schizophrenia usually show very inappropriate displays of their actions and feelings. Sufferers have been known to hear voices, even when there is nobody around them. They have problems controlling their thoughts, and sometimes blurt out things that are very inappropriate. This paper will outline the biological, social, and psychological

Conclusions / Results: Conclusions suggest that the nature vs nurture dichotomy may not be as relevant as looking at the interaction between these two forces. It was discovered that while one’s genetic heritage creates a predisposition towards schizophrenia, other factors such as the home environment, the parental environment, dietary factors and others may determine whether the disease is manifested.

Schizophrenia is a mental illness that is diagnosed in 0.5%-1% of the population in their lifetime (van Os et al, 2010). Its literal translation is ‘split-brain’, though it does not refer to multiple personality disorder, but rather a split from reality characterized by its disturbed perceptions, disorganized thinking and inappropriate emotions (Myers, 2010). Much research has been carried out to gain a better understanding of the causes of this serious disorder. A popular theory is the diathesis-stress model. This theory of schizophrenia proposes that stress can elicit a pre-existing vulnerability to the disorder (Jones & Fernyhough, 2007). This model focuses on the interaction between genetic heritability of the disorder, and the environments interaction