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AS and A Level: Cognitive Psychology

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  1. Marked by a teacher

    In this essay I am going to contrast and compare three approaches in psychology which are behaviourist, cognitive, and humanist. I am going to show how these psychological approaches contribute to the understanding of the human mind and behaviour.

    4 star(s)

    Both transitions and changes make people experience different emotions. A person may either become stressed or even depressed, have negative feelings of him, or became withdrawn from others. However that way an individual reacts will depend on the transition or change itself, and on the individual whom is going through it. Psychologists believe the way an individual reacts through a moment of transition or change can be explained after an analyse of the individual's past experiences, knowledge, habits, social life, and culture, and application of an appropriated approach in psychology or a combination of approaches in psychology.

    • Word count: 2492
  2. Marked by a teacher

    Describe and Evaluate 2 Models Of Memory

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    According to the model, if attention is paid to an external stimulus, an internal thought, or both, then it is stored in the short-term memory. It is mostly stored in auditory form, however other types of encoding are also possible. Short-term memory is also called working memory and relates to what we are thinking about at any given moment in time. It is the memory from which an answer to a question comes out - the output. The presence of the short-term memory store and the auditory encoding is supported by the experiment conducted by Conrad in 1964, where he showed participants sequences of letter at random in a rapid succession, and relied on errors made to create his conclusion.

    • Word count: 1840
  3. Marked by a teacher

    Measurements of Accuracy of Eyewitness Testimonies

    4 star(s)

    This means that the experimental hypothesis was accepted, and the null hypothesis was rejected. Furthermore, these results gave further support for work done by Loftus and Palmer (1974) on leading questions, who showed that slight manipulations in questions can alter eyewitness testimonies. Introduction The increasing demand for accurate and detailed evidence in today's society means that there is a greater dependence on eyewitness testimonies. However, the idea that we are capable of recalling the exact details of a past event has been criticised and contradicted by a number of psychological studies. This investigation aims to measure the accuracy of Eyewitness testimony and discuss the relevance and implications of these findings in today's society.

    • Word count: 1767
  4. Marked by a teacher

    Define short-term memory and describe the main factors that influence the number of items recalled from short-term memory. Evaluate Nairne's theory relative to traditional theories, clearly stating your criteria for evaluation.

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    The capacity of short-term memory has been assessed using the techniques of digit span and the recency effect in free recall (Eysenck and Keane 2002 [3]). In the nineteenth century the capacity of immediate memory preoccupied a number of theorists (Baddeley 1999 [1]). Take for example the work of William Hamilton. He observed that if someone threw a handful of marbles on the floor, the maximum number to be perceived with reasonable accuracy would be about seven (Baddeley 1999 [1]).

    • Word count: 3768
  5. Marked by a teacher

    To retain recall, which is more beneficial, rote rehearsal or imagery?

    4 star(s)

    (Cardwell, 1996, p153). Atkinson and Shiffrin (1968) suggested that memory is made up of a series of stores. One is the sensory information store (SIS); the next one is the short-term memory (STM) and the long-term memory (LTM). The stores differ in their encoding, storage and retrieval characteristics. (See Fig 1.) The SIS incoming information is registered by the senses and held in the system until the image fades. This information is held as a sensation in a sensory system e.g. visual system.

    • Word count: 3447
  6. Marked by a teacher

    Craik and Lockhart believed that depth is a critical concept for levels of processing theory.

    4 star(s)

    Depth of processing involves elaboration. Organization Organization is another form of deep processing. Research has shown that organization creates a lasting memory like semantic processing. It is implicit rather than explicit memory and no conscious processing needs to take place. Mandler (1967) conducted and experiment in which he gave participants a pack of 52 picture cards, each of which had a word printed on it. Participants were then asked to sort the cards into piles, using anything from two to seven categories, and could go by any system the wished. They were then asked to carry on with the sorting until they came to two identical sorts.

    • Word count: 2805
  7. Marked by a teacher

    Are memories permanent and unalterable?

    4 star(s)

    In a survey of psychologists by Loftus and Loftus (1980), 84% favored the position that stored information is never lost from the memory system, although it may normally be inaccessible. Some evidence in support of this favored position can be found in the studies of Wilder Penfiel and his associates. While treating epileptic patients during 1940s, he was removing the damaged areas in their brains. In order to spot the damaged area he was stimulating the surface of the brain with a weak electrical current.

    • Word count: 2311
  8. Peer reviewed

    The cognitive perspective in psychology is often used to explain behaviour. Discuss the cognitive perspective in psychology. In your answer, refer to at least two topics that you have studied in psychology.

    5 star(s)

    However, the cognitive approach is often criticised for being too mechanistic and reductionist. This is because it reduces complex human processes and behaviour to those of a computer and ignores the fact that humans are biological organisms and are not machines. One topic that the cognitive approach applies to is anxiety disorders, and more specifically, phobias. Cognitive psychologists believe that fearful emotional responses in the form of phobias are the result of maladaptive thought processes, and that individuals have distorted interpretations of events such as automatic negative thoughts and over generalisation.

    • Word count: 594
  9. Peer reviewed

    Two attributional biases with evidence

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    The Fundamental Attribution Error is the general tendency observers have to decide that an actor's behaviour has an internal cause. We have the general belief that a person's behaviour and actions are due to their own personality traits. It is likely that this is because of an expectation that our behaviour and personality match or fit each other. A real life example is "He dropped the jug because he is clumsy" Nisbett et al (1973) wanted to see if people tend to attribute the cause of a person's behaviour as due to an internal cause rather than external cause.

    • Word count: 676
  10. Peer reviewed

    Loftus and Palmer APFCC

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    cause them to distort the way they constructed and stored the information in memory. The study shows that we reconstruct our memory based on schemas already stored. Eye witness testimony is important to the judicial system, as witness accounts can often influence the outcome of a jury. It is well reported that people are often inaccurate at remembering faces, weapons and numerical data such as speed and time. It is therefore evident that there are a number of variables that can affect eye witness testimony, such as the way in which a question is worded after a particular event.

    • Word count: 869
  11. Peer reviewed

    What effect does the order in which a testimony is presented have on persuading a jury?

    4 star(s)

    And because, in this system, the prosecution is heard first and the defence last, it can be assumed that the number of guilty verdicts heard under this system is greater than the number of innocent verdicts because the jury pay more attention to the case when the prosecution is heard. In the study conducted, Pennington used a mock jury with a group of participants who heard the prosecution first and the defence last, and another group who heard the defence first and the prosecution last.

    • Word count: 569
  12. Peer reviewed

    Outline & Evaluate the Cognitive Interview

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    Fisher and Geiselman found that reporting everything and mental reinstatement check for consistency of the eyewitness report, and changing the order and perspective helps to create a different route to recall, increasing the amount of information. The cognitive interview has strong supporting research; Kohnken et al for example, reviewed research into eyewitness testimony and found that the cognitive interview increased the amount of correct information recalled by 48%, compared to the standard interview.

    • Word count: 461
  13. Peer reviewed

    A study by Loftus and Palmer (1974) into the accuracy of Eye Witness Testimony aimed to find out if changing the wording of a question could distort ones ability to recall from memory an event.

    4 star(s)

    Similarly, when called back a week later and asked if any broken glass was seen, they found that although there wasn't any present, 32% in the 'smashed' condition said they had seen broken glass. Loftus and Palmer therefore concluded that by using the word 'smash' it gives suggestions of strong impact and thus shows that leading questions have an impact on the accuracy of eyewitness' ability to re-call situations. The strengths from this study include providing useful insight for the police so they know that when interviewing witnesses they should be aware of the way they phrase their questions to ensure the memory of the witness isn't distorted in any way.

    • Word count: 864
  14. Free essay

    Trace Decay Theory

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    Ebbinghaus concluded that over time, the trace faded and the list of syllables was lost. However, there are some criticisms of this experiment, one being that he was the only participant so it is hard to make a generalisation from such a small sample. A further criticism of his experiment was using himself as a participant which could lead to experimenter bias. He knew what his aims and results were, so there was a possibility of demand characteristics. Overall, the criticisms of the trace decay theory are that we cannot physically see the trace so it is impossible to prove,

    • Word count: 904
  15. Peer reviewed

    Outline and evaluate research relating to the linguistic relativity hypothesis

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    Brown & Lenneberg studied Zuni speakers in New Mexico, whose language had no separate word to describe yellow and orange, and found that they had difficulty in a task that required them to distinguish the two. This appears to support the hypothesis, but there has been research to indicate the contrary. Challenging research comes from Rosch, who studied speakers of Dani (a language of New Guinea). Dani has no words for separate colours, instead only distinguishing brightness, and yet its speakers were successful in tasks that required them to distinguish between a wide array of colours.

    • Word count: 825
  16. Peer reviewed

    The Biological model

    4 star(s)

    It has been found that an excess of the neurotransmitter dopamine has been linked to SZ. Finally infection is a common cause for physical illness; Barr et al found a significant link between mothers who had influenza whilst pregnant and their child developing SZ. As there are physiological causes of abnormality therefore the treatments are physiological these are Drugs, ECT, which involves a small electric shock being sent to the brain causing a small seizure/convulsion and psychosurgery.

    • Word count: 515
  17. Peer reviewed

    'To what extent does psychological research support Atkinson and Shiffrin's model of memory?'

    4 star(s)

    There is some evidence to support this view. In one particular experiment, participants were asked to rehearse a list of items out loud. In general, the more frequently an item was rehearsed the more likely it was to be recalled from LTM (Rundus, 1971). However, evidence from everyday situations implies that rehearsal is a lot less important than the multi-store model suggests. Eysenck & Keane (1995) said that people rarely rehearse information in their everyday lives yet information is constantly entering LTM.

    • Word count: 832

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