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
Free Obesity
responsible for the crime. Eyewitnesses have historically been asked to identify the perpetrator by “placing a suspect among people not suspected of committing the crime” (Schuster‚ B. 2007). This procedure is called a lineup. The drawbacks to using eyewitness accounts to help ascertain the identity of suspected criminals are numerous. The lineup relies on the memory and perception of the witness who may have been under extreme stress during the time of the crime making it difficult for the witness to
Premium Criminal justice Criminal law Crime
Outline and evaluate the biological approach to abnormality? The biological or medical approach regards abnormality as illness or disease. Mental illness is thought to be related to the physical structure and functioning of the brain. There are four possible causal factors of abnormality: brain damage‚ infection‚ biochemistry and genes. The first factor is brain damage. Abnormal behaviour may occur if the structure of the brain is damaged in some way. Once disease or brain damage has caused mental
Premium Schizophrenia Psychology Mental disorder
Outline and evaluate research into the duration of memory (12 marks) Peterson and Peterson researched into the duration of the STM. They used trigrams and asked their participants to recall them after a retention interval‚ the retention interval was different every time. They found that after 3 seconds participants could recall about 90% correctly but after 18 seconds only 2% could be recalled correctly. Peterson and Peterson concluded that the STM has a limited duration and when rehearsal is
Premium High school
Outline and evaluate the psychodynamic approach to abnormality The psychodynamic approach to abnormality assumes that unconscious desires and memories influence behaviour and may lead to abnormality. It claims that personality develops in the 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
Premium Sigmund Freud
Outline and evaluate genetic factors in aggression The use of twin studies helps explain how there could be genetic factors in aggressive behavior. There are two types of Twin‚ monozygotic (identical) and Dizygotic (non-identical). If both types are studied in terms of aggression and the M-Z twins are more similar in aggressive behaviour it would suggest there is a genetic influence on aggression. Coccaro et al found that when comparing MZ and DZ twins‚ over 50 % of variance in aggressive behaviours
Premium Aggression Violence Genetics
Eyewitness Testimony 1 RUNNING HEAD: Eyewitness Testimony Eyewitness Testimony Mark Maldonado Grantham University PS280 Psychology and the law Eyewitness Testimony 2 Eyewitness testimony can create a number of problems for police and prosecutors. Some eyewitness’s do make mistakes on identifying someone and causes that person to be wrongfully convicted. It has happened time and time again. There is an organization called the Innocence Project that stated 75% of the 218 people exonerated
Free Psychology Eyewitness identification Question
Outline and Evaluate the Working Memory Model The working memory model is a theory for how short-term memory works‚ and an expansion of the views expressed in the MSM theory. Baddeley and Hitch in 1974 felt that STM was not just one store but a collection of different stores. These concepts lead them to form a model which consists of three slave systems; the central executive‚ the phonological loop and the visuo-spatial sketchpad. They used the phrase ‘working memory’ to refer to the division of
Premium Working memory Baddeley's model of working memory Short-term memory
Outline and Evaluate the biological approach to abnormality The biological approach sees abnormality as a physical illness and removes psychological blame and responsibility for the behaviour form the patients. Biochemistry; which is where abnormal functioning in the brain can be caused by abnormal levels of neurotransmitters and hormones. Neurotransmitters are the chemical messengers that allow neurones to communicate with one another at synapses. Hormones are chemical messengers that are secreted
Premium Dopamine Mental disorder Nervous system
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
Premium Working memory Baddeley's model of working memory Short-term memory