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
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argument over whether heredity or the environment has the most impact on human psychological development. In the debate nature refers to human’s genotypes‚ the set of genes inherited from parents. Nurture refers to environment factors an individual is exposed to over time. A phenotype refers to the characteristics resulting from interaction of a genotype with the environment (Carter 192). Generally‚ psychologists argue that who we are is predetermined by our DNA. While sociologists and social and
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Evolution‚ Genes & the Environment Variation is when you refer to genes; it means that there is a large variety of phenotypes‚ alleles and genotypes which can sometimes cause genetic variation. This results in different physical characteristics. Some examples of variations in humans are eye colour‚ hair colour and gender. Variations caused by the environment are the climate (tanned/pale skin) this is affected by the environment as the sun comes in contact with your skin and will darken it‚ the
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dominant allele dictates the characteristic • Incomplete dominance: the dominant/recessive alleles “mix” to create an intermediate trait • Genotype‚ phenotype‚ and environment • Environment can impact genes • Especially in the womb • Environment can impact phenotype • Your genes/phenotype can impact your environment • Genes + Environment = Phenotype • E.g.: the rabbit + cold = black fur • Intelligence: genes + environment • Animal models • Genetic component: Benefit - selective breeding
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5a. Dracunculus medinensis‚ commonly known as the Guinea worm‚ is a human parasite. It enters the body through water fleas‚ but when the fleas reach the digestive tract‚ the fleas are killed and the worm larvae are not. Over the course of about a year‚ the larvae grow and develop into full-fledged worms carrying thousands of new larvae. The worms travel to the skin and expel acid to burn their way out. The burning sensation causes human hosts to feel the urge for cold water to ease the pain. However
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Trippple Award Specification (4BIO) Examination in 2012 Trippple Award Specification Key words are underlined in red. Practical work is printed in italics. Section 1: The nature and variety of living organisms Characteristics of living organisms include; M ovement R espitation S ensitivity G rowth R eproduction E xcretion N utrition In addition‚ all living organisms contain nucleic acids (DNA) and have the ability to control their internal conditions. Finally‚ all living
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PSYC1001 – Notes Introduction & Psych Perspectives What is Psychology? Psychology is the scientific investigation of mental (thinking‚ remembering and feeling) and behaviour. Understanding a person requires attention to the individual’s biology‚ psychological experience and cultural context. Behaviour – Overt (observable) actions; Physiological correlates of actions Mental Processes – Thoughts (memories‚ imagery‚ concepts); Emotions (fear‚ happiness‚ anger‚ arousal); interactions between
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Foreign Policy: Theories‚ Actors‚ Cases Chapter 1 – The History and Evolution of Foreign Policy Analysis by Valerie M. Hudson Key Points * Foreign Policy: The strategy or approach chosen by the national government to achieve its goals in its relations with external entities; includes decisions to do nothing * Foreign Policy Analysis: seeks to explain foreign policy‚ or FP behavior‚ with reference to the theoretical ground of human decision makers‚ acting singly and in groups. * Classical
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Chapter 2: Biological Beginnings 2.1 The Evolutionary Perspective Natural Selection & Adaptive Behavior Natural Selection: the evolutionary process by which individuals of a species that are best adapted are the ones that survive and reproduce Charles Darwin wrote On the Origins of Species explaining how those who survive are better adapted to the world than the nonsurvivors Adaptive Behavior: behavior that promotes an organism’s survival in the natural habitat Example: the attachment between
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1. What are the 3 main challenges to studying abnormal psychology that we discussed in class? List the 3 challenges and describe why they are important to consider. (4 points) Avoiding stigma‚ objectivity‚ and preconceived notions 2. What are 4 criteria used to define abnormal behavior? Define each criterion and give an example. (4 points) 4 D’s Dysfunction Distress Disability Deviance 3. Describe the diathesis stress model. Give an example of a diathesis and a stress and how they
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