Describe and evaluate explanations of insomnia. (8 + 16 marks) Insomnia is a state where an individual experiences difficulties with their sleep. There are 5 types of insomnia; long term‚ short term‚ trouble falling asleep‚ trouble staying asleep and waking up too early. Short term insomnia usually lasts a few days or weeks‚ it tends to be caused by immediate worries such as exams‚ deaths‚ noise‚ jet lag or temporary medical conditions such as colds. Long term (chronic) insomnia is experiencing
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Outline and evaluate psychological explanations of schizophrenia (24 marks) Brown and Birley studied stressful life events in the role of relapse in schizophrenics. They found that 50% of people experience a stressful life event e.g. death‚ relationship break-up‚ job loss etc. in the 3 weeks prior to a schizophrenic episode. A control sample reported a low and unchanging level of stressful life events over the same period. However not all evidence supports the role of life events. For example‚
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Noble Informative Speech Outline 28 September 2010 Eating Disorders Topic: Eating Disorders General Purpose: To inform Specific Purpose: To inform my audience about the three main types of eating disorders. Central Idea: To inform my audience about anorexia‚ bulimia‚ and binge eating. Introduction: Two years ago‚ I was hit with the news that my mentor was leaving to go to Remuda Ranch‚ which I learned was a rehabilitation center for women struggling with eating or anxiety disorders. This
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Outline and evaluate biological explanations of obesity Various explanations can be provided for the reasons of obesity‚ from biological explanations‚ to neurological and evolutionary theories. Even socio-economic reasons could give insight into why some people have a higher likeliness of obesity Evolutionarily‚ the thrifty gene hypothesis provides insight as to why many suffer from obesity‚ as it suggests that our current genes are no longer suited to our new environment. Modern day society is
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Neural & Synaptic Transmission The nervous system is made up of neurons and glila cells. Neurons are the basic communication links in the nervous system. Glila cell provide support for neurons and contribute to communication. Neurons normally transmit a neural impulse (an electric current) along an axon to a synapse with another neuron. The neural impulse is a brief change in neuron’s electrical charge that moves along an axon. It is an all-or-none event. Action potential triggers
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Outline and evaluate the working memory model (12 marks) Baddeley and Hitch proposed that memory has 4 components. The central executive‚ phonological loop‚ visuospatial sketchpad and the episodic buffer. The central executive decides how to share out and direct attention to incoming information. The phonological loop can be thought of as a maintenance rehearsal mechanism for retaining verbal information. It is sub-divided into two other components‚ the phonological store (inner ear)‚ which holds
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Outline and evaluate the Psychodynamic approach to abnormality (12marks) It claims that personality develops in childhood through a number of ‘psychosexual stages’ and that too much or too little pleasure at one of these can lead to fixation and abnormal behaviour. For example between the ages of two and four children are in the anal stage – too much focus on holding in faeces during this time can lead to an ‘anally retentive’ adult personality which is obsessively neat and tidy‚ in some cases leading
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Outline and evaluate the behavioural approach to abnormality This approach focuses on the behaviour of the person to explain psychological abnormalities. It believes that the behaviour is learnt‚ and therefore can be unlearnt. It focuses on 3 different things: classical conditioning‚ operant conditioning and social learning theory. Classical conditioning was developed by Pavlov through his work on animals. He explained the development of abnormal behaviours through stimulus-response associations
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This study is a replication of a study by Loftus and Palmer in 1974. The aim of the study is to test the effect of leading questions in eyewitness testimonies and how reliable the account of the witness is. The experiment uses two groups which receive two different verbs‚ ‘smashed’ and ‘contacted’. The method consists of an independent measure design. The independent variables are the way the words are phrased in the questions‚ while the dependent variable is the estimation made by the participants
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OUTLINE AND EVALUATE EVOLUTIONARY EXPLANATIONS OF FOOD PREFERENCES (4 MARKS + 16 MARKS) Outline (A01) Tastes experiences come from our taste receptors. These make us sensitive to a range of taste qualities. For example‚ sweet foods are usually associated with carbohydrates that are a great source of energy. Sour food allows us to identify food that has gone off and would therefore contain harmful bacteria. Salt food is vital for the function of our cells. Bitter tastes are associated with
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