Outline and Evaluate Two or More Biological Explanations...

There are two main biological theories which explain the assumed causes of schizophrenia: Genetic and Dopamine Hypothesis. Research by Mikaywa et al has found that there must be a genetic explanation of schizophrenia due to the fact that concordance rates for environmental causes are not 100%. Also Mikaywa noticed that schizophrenia runs in the family, meaning there must be something other than environmental causes, causing the disorder. What Mikaywa studied was DNA from human families who were affected by schizophrenia and found that those with the disorder are more likely to have the defective gene: PPP3CC. The PPP3CC gene regulates the immune system, and therefore is an important gene in terms of genetic vulnerabilities which may be†¦show more content†¦In support of this Kendler et al found that first degree relatives of those with schizophrenia are at 18 times more risk than the general population. Research has also found that schizophrenia symptoms may have a genetic component. This was suggested by Malaspina, who found that patients who have schizophrenia in their family histories are mor e likely to develop negative symptoms than those families who are schizophrenia free. In evaluation of family studies it may be concluded that they are not very reliable as they are retrospective. The studies for family studies where taken place when diagnosis was under a more liberal use of the term schizophrenia. Twin studies have also shown a genetic pre-disposition. Gottesman found 48% risk of schizophrenia in MZ twins compared to only 17% in DZ twins. Similar to the Gottesman study two other studies showed higher concordance rates for MZ twins and lower in DZ twins however each had slightly different results. McGuffin et al argues this is because of the use of different diagnostic criteria, which may affect the validity of the results. On the other hand the researchers used blind techniques to obtain the results eliminating any researcher bias. Both family and twin studies face the problem of ignoring environmental impacts. In family studies, genetically similar members of the same family tend to spend more time together, thereforeShow MoreRelatedOutline and Evaluate One or More Biological Explanations to Schizophrenia1149 Words   |  5 PagesOutline and evaluate one or more biological explanations of schizophrenia (8 marks AO1/16 marks AO1) Schizophrenia is classified as a mental disorder that shows profound disruption of cognition and emotion which affects a person’s language, perception, thought and sense of self. The dopamine hypothesis states that schizophrenic’s neurones transmitting dopamine release the neurotransmitter too easily, leading to the characteristic symptoms of schizophrenia. This hypothesisRead MoreTwo Biological Explanations of Schizophrenia Essay487 Words   |  2 PagesTwo 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. I study was preformed by Janicak et al 2001;Read MoreOutline and Evaluate Issues Surrounding the Classification and Diagnosis of Depression1051 Words   |  5 PagesOutline and Evaluate Issues Surrounding the Classification and Diagnosis of Depression Scheff’s Labelling Theory is a process which involves labelling people with mental disorders when they produce behaviour that does not fit with socially constructed norms and labelling those who reflect stereotyped or stigmatized behaviour of the ‘mentally ill’. A disadvantage of labelling an individual with depression is that labelling can accentuate and prolong the issue. In addition by labelling someoneRead MorePsychology Workbook Essay22836 Words   |  92 Pagessense lead to the same conclusions about behavior and mental processes. _____ Psychology is not a science. Objective I.2 Define the scientific method, and explain how it is used in psychology? Psychologists use the scientific method to evaluate competing ideas; find relationship of variables by collecting data |Margin Learning Question(s) (if applicable) |Page(s) | |1.2 What processes do scientists use toRead MoreSources of Ethics20199 Words   |  81 PagesCONTENTS 1.0- JOHN STEINER AND GEORGE STEINER SIX PRIMARY SOURCES OF ETHICS: 6 1- Religion: 6 2- Genetic Inheritance: 8 3- Philosophical Systems: 8 4- Cultural Experience: 8 5- The Legal System: 9 6- Codes of Conduct: 9 2.0- EXPLANATION OF THE SOURCES OF ETHICS: 10 2.1- RELIGION: 10 Teaching business ethics 12 2.11- Impact Of Religiosity: 13 2.12- Ethics Of Islam: 14 Nature of Islamic Ethics 17 The Human-Environment Relationship: 20 The Sustainable Care ofRead MoreOcd - Symptoms, Causes, Treatment131367 Words   |  526 Pageson the research and treatment of OCD. However, by the late 1980s and early 1990s, behavioral researchers like Paul Salkovskis and Jack Rachman were advocating a more integrative theory and treatment of OCD, an approach that amalgamated the behavioral treatment of OCD with Beck’s (1976) cognitive theory of emotional disorders. From these two theoretical perspectives on clinical disorders, a new cognitive-behavioral approach to obsessions and compulsions was born. In many respects, my own professionalRead MoreStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 PagesSelf-Assessment Library What’s My Attitude Toward Older People? 40 Myth or Science? â€Å"Dual-Career Couples Divorce Less† 47 An Ethical Choice Religious Tattoos 51 glOBalization! Images of Diversity from Around the Globe 54 Poin t/Counterpoint Men Have More Mathematical Ability Than Women 61 Questions for Review 62 Experiential Exercise Feeling Excluded 62 Ethical Dilemma Board Quotas 62 Case Incident 1 The Flynn Effect 63 Case Incident 2 Increasing Age Diversity in the Workplace 64 3 AttitudesRead MoreGsk Annual Report 2010135604 Words   |  543 PagesDo more, feel better, live longer GlaxoSmithKline Annual Report 2010 Contents Business review P08–P57 Governance and remuneration P58–P101 Financial statements P102–P191 Shareholder information P192–P212 Business review 2010 Performance overview Research and development Pipeline summary Products, competition and intellectual property Regulation Manufacturing and supply World market GSK sales performance Segment reviews Responsible business Financial review 2010 Financial position and resources