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How does the use of technology help criminal investigations
How accurate are eyewitness testimonies
How accurate are eyewitness testimonies
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Empirical studies on context-dependent memory date back to Carr Harvey (as cited in Smith & Vela, 2001). Memory is context-dependent, when contextual cues affect remembering (Morris & Gruneberg, 1994). Context-dependent memory implies that contextual information is stored along with the target information. Findings from the research (Godden & Baddeley, 1975; Smith, Glenberg, & Bjork, 1978) indicate that context change alters memorization and recall processes. According to Tulving (1973) the usage of contextual cues can improve the retrieval processes. This notion has been used and its relevance has been further proved by a variety of research.
This essay will discuss context-dependent research on one of the aspects of everyday memory, on eyewitness testimony. It will particularly focus on two directions of eyewitness testimony: cognitive interview and face identification. The discussion will go further on how that research can be applied in real life to facilitate the accuracy of eyewitnesses’ recall and recognition.
The essay will aim to show that despite some obvious limitations of the research, its correct application and attempts to neutralise the hindrances can broadly improve the results of testimonies.
The discussion will start with the cognitive interview area, and will be followed by the face identification topic.
Cognitive interview (or CI) is an interview protocol, which is used to enhance the memories of eyewitnesses by using mnemonic ...
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...& Bjork, R. A. (1978). Environmental context and human memory. Memory & Cognition, 6(4), 342–353. doi:10.3758/BF03197465
Smith, S. M., & Vela, E. (2001). Environmental context-dependent memory: A review and meta-analysis. Psychonomic Bulletin & Review, 8(2), 203–220. doi:10.3758/BF03196157
Tulving, E., & Thomson, D. M. (1973). Encoding specificity and retrieval processes in episodic memory. Psychological Review, 80(5), 352–373. doi:10.1037/h0020071
Wilcock, R. A., Bull, R., & Vrij, A. (2007). Are old witnesses always poorer witnesses? Identification accuracy, context reinstatement, own-age bias. Psychology, Crime & Law, 13(3), 305–316. doi:10.1080/10683160600822212
Winograd, E., & Rivers-Bulkeley, N. T. (1977). Effects of changing context on remembering faces. Journal of Experimental Psychology: Human Learning and Memory, 3(4), 397–405. doi:10.1037/0278-7393.3.4.397
Roediger III, H. L., Watson, J. M., McDermott, K. B., & Gallo, D. A. (2001). Factors that determine false recall: A multiple regression analysis. Psychonomic Bulletin & Review, 8(3), 385-407.
(Kennedy & Haygood, 1992; Williams & Loftus, 1994), which is worrying considering the growing and substantial body of evidence from laboratory studies, field studies, and the criminal justice system supporting the conclusion that eyewitnesses frequently make mistakes (Cutler & Penrod, 1995; Huff, 1987; Huff, Rattner, & Sagarin, 1986; Innocence Project, 2009; Wells, Small, Penrod, Malpass, Fulero, & Brimacombe, 1998). According to a number of studies, eyewitness misidentifications are the most common cause of wrongful convictions (Huff, Rattner, & Sagarin, 1986; Wells et al., 1998; Yarmey, 2003) and, through the use of forensic DNA testing, have been found to account for more convictions of innocent individuals than all other factors combined (Innocence Project, 2009; Wells, Memon, & Penrod, 2006).
Marsh, R. L., Cook, G. I., & Hicks, J. L. (2006). The effect of context variability on source memory. Memory & Cognition (Pre-2011), 34(8), 1578-86.
There has been considerable debate worldwide, regarding the accuracy of eyewitness testimony in the criminal justice system. Particularly, arguments have surrounded wrongful convictions that have resulted from incorrect eyewitness evidence (Areh, 2011; Howitt, 2012; Nelson, Laney, Bowman-Fowler, Knowles, Davis & Loftus, 2011). The purpose of this essay is to consider psychological research about the accuracy of eyewitness testimony and its placement in the criminal justice system. Firstly, this essay will define how eyewitnesses and their testimonies are used within the criminal justice system and the current debate surrounding its usage. Secondly, the impact of post-identification feedback will be used to show the affect on the confidence of a witness. Thirdly, studies around gender related differences will show how a witnesses gender can affect memory recall and accuracy. Fourthly, empirical studies will be used to highlight how a psychological experience called change blindness can cause mistakes in eyewitness identification. Finally, the effect of cross-examination will be used to explore the impact on eyewitness accuracy. It will be argued, that eyewitness testimony is not accurate and highly subjective, therefore, the criminal justice system must reduce the impact that eyewitness testimony is allowed to have. Developing better policies and procedures to avoid wrongful convictions by misled judges and jury members can do this.
The term that best explains the barriers to eyewitness memory is widely regarded as verbal overshadowing. The notion of verbal overshadowing has been coined as the inability to provide explicit memories due to the cognitive barriers people possess to depict accurately the events that have transpired. On a daily basis, individuals across the United States are sentenced to lengthy prison sentences resultant of wrongful convictions (Innocence Project, 2016). To illustrate the ambivalences caused by verbal overshadowing, if it even exists, behavioral scientists conducted a study to demonstrate the disparities. Many researchers have designed an experiment to measure a person’s cognitive ability to remember accurately a perpetrator that has committed a crime in a police lineup (Schooler & Engstler-Schooler,
Memory is a cognitive function of the brain that is often taken for granted. Memory may have many purposes, but most importantly it is essentially a record of an entire life span. From this perspective memory is the most important aspect of consciousness. Unfortunately, through formal experimentation it has been shown that memory is fairly inaccurate, inconsistent, and often influenced by our own experiences as well as the bias of others. Memory is not only affected during an observed event, but there are instances where memory can be influenced after an event as well. There are also instances where memory can be affected retroactively due to personal experiences and biases. Incorrectly recalling the memories of one’s life is usually not detrimental, but the flawed nature of long-term and short-term memory functions becomes a serious matter in regards to criminal eyewitness testimony. In the justice system eyewitness reports are legitimate and can be crucial in the judging process. The justice system was constructed to rely on testimony that is often inaccurate and inconstant in many ways.
Quas, J. A., Goodman, G. S., Bidrose, S., Pipe, M., Craw, S., & Albin, D. S. (1999). Emotion and memory: Children's long-term remembering, forgetting, and suggestibility. Journal of Experimental Child Psychology, 72, 235-270.
...Baddeley (1966) study of encoding in the short term memory and long term memory supports the MSM model on the mode of processing such that words are processed on recall and both models share the same opinion that processing does influence recall. Finally, the MSM model of memory states that all information is stored in the long term memory, however, this interpretation contrasts with that of Baddeley (1974) who argue that we store different types of memories and it is unlikely that they occur only in the LTM store. Additionally, other theories have recognised different types of memories that we experience, therefore it is debatable that all these different memories occur only in the long-term memory as presumed by the multi-store model which states the long term memory store as with unlimited capacity, in addition it also fails to explain how we recall information.
Human memory is flexible and prone to suggestion. “Human memory, while remarkable in many ways, does not operate like a video camera” (Walker, 2013). In fact, human memory is quite the opposite of a video camera; it can be greatly influenced and even often distorted by interactions with its surroundings (Walker, 2013). Memory is separated into three different phases. The first phase is acquisition, which is when information is first entered into memory or the perception of an event (Samaha, 2011). The next phase is retention. Retention is the process of storing information during the period of time between the event and the recollection of a piece of information from that event (Samaha, 2011). The last stage is retrieval. Retrieval is recalling stored information about an event with the purpose of making an identification of a person in that event (Samaha, 2011).
Furthermore this article expands upon this subcategory of memory by describing the two types of tasks involved with it: verbal-production ta...
Farrants, J. (1998, September). The 'false' memory debate. Counseling Psychology Quarterly. Retrieved September 14, 2000 from ProQuest database (Bell & Howell Information and Learning-ProQuest) on the World Wide Web: http://proquest.umi.com/pqdweb
Atkinson, R.C. & Shiffrin, R.M. (1968). Human memory: A proposed system and its control process.
According to Sternberg (1999), memory is the extraction of past experiences for information to be used in the present. The retrieval of memory is essential in every aspect of daily life, whether it is for academics, work or social purposes. However, many often take memory for granted and assume that it can be relied on because of how realistic it appears in the mind. This form of memory is also known as flashbulb memory. (Brown and Kulik, 1977). The question of whether our memory is reliably accurate has been shown to have implications in providing precise details of past events. (The British Psychological Association, 2011). In this essay, I would put forth arguments that human memory, in fact, is not completely reliable in providing accurate depictions of our past experiences. Evidence can be seen in the following two studies that support these arguments by examining episodic memory in humans. The first study is by Loftus and Pickrell (1995) who found that memory can be modified by suggestions. The second study is by Naveh-Benjamin and Craik (1995) who found that there is a predisposition for memory to decline with increasing age.
...pporting details. At the conclusion of the article, the authors share their thoughts on how it might be virtually impossible to determine when a memory is true or false. I also like their willingness to continue the investigations despite how difficult it might be to obtain concrete answers.
Memory is the tool we use to learn and think. We all use memory in our everyday lives. Memory is the mental faculty of retaining and recalling past experiences. We all reassure ourselves that our memories are accurate and precise. Many people believe that they would be able to remember anything from the event and the different features of the situation. Yet, people don’t realize the fact that the more you think about a situation the more likely the story will change. Our memories are not a camcorder or a camera. Our memory tends to be very selective and reconstructive.