{"id":195,"date":"2013-11-21T18:55:19","date_gmt":"2013-11-21T18:55:19","guid":{"rendered":"http:\/\/opentextbc.ca\/introductiontopsychology\/?post_type=chapter&#038;p=195"},"modified":"2016-11-17T22:38:39","modified_gmt":"2016-11-17T22:38:39","slug":"chapter-8-remembering-and-judging","status":"publish","type":"chapter","link":"https:\/\/opentextbc.ca\/introductiontopsychology\/chapter\/chapter-8-remembering-and-judging\/","title":{"raw":"9. Remembering and Judging","rendered":"9. Remembering and Judging"},"content":{"raw":"Canada has had its share of memories being introduced into legal cases with devastating results:\u00a0Thomas Sophonow was accused of murdering a\u00a0young waitress who worked in a donut shop in\u00a0Winnipeg, Manitoba.\u00a0Several eyewitnesses testified\u00a0against Sophonow but there were problems with each\u00a0one. For example, the photo array shown to a number\u00a0of witnesses contained a picture of Sophonow, which\u00a0was significantly different than the other men in the\u00a0array.\r\n\r\nDubious allegations of repressed memories forced Michael Kliman, a teacher at\u00a0James McKinney Elementary School\u00a0in Richmond, B.C.,\u00a0\u00a0to endure three trials before his ultimate acquittal. His world came crashing down when he was\u00a0accused of molesting a Grade 6 student some 20\u00a0years earlier, a student who \u201crecovered\u201d her memories 17\u00a0years after the abuse allegedly happened. According to an article in the <em>Vancouver Sun<\/em> (Brook,\u00a01999): \u201cIn 1992, after years of psychiatric treatment,\u00a0she \u2018recovered\u2019 long-lost memories of a year-long\u00a0series of assaults by Kliman and, encouraged by the \u00a0Richmond RCMP, laid charges.\u201d\r\n<div class=\"bcc-box bcc-highlight\">\r\n<h3>She Was Certain, but She Was Wrong<\/h3>\r\nIn 1984 Jennifer Thompson was a 22-year-old college student in North Carolina. One night a man broke into her apartment, put a knife to her throat, and raped her. According to her own account, Ms. Thompson studied her rapist throughout the incident with great determination to memorize his face. She said:\r\n\r\n\"I studied every single detail on the rapist\u2019s face. I looked at his hairline; I looked for scars, for tattoos, for anything that would help me identify him. When and if I survived.\"\r\n\r\nMs. Thompson went to the police that same day to create a sketch of her attacker, relying on what she believed was her detailed memory. Several days later, the police constructed a photographic lineup. Thompson identified Ronald Cotton as the rapist, and she later testified against him at trial. She was positive it was him, with no doubt in her mind.\r\n\r\n\"I was sure. I knew it. I had picked the right guy, and he was going to go to jail. If there was the possibility of a death sentence, I wanted him to die. I wanted to flip the switch.\"\r\n\r\nAs positive as she was, it turned out that Jennifer Thompson was wrong. But it was not until after Mr. Cotton had served 11 years in prison for a crime he did not commit that conclusive DNA evidence indicated that Bobby Poole was the actual rapist, and Cotton was released from jail. Jennifer Thompson\u2019s memory had failed her, resulting in a substantial injustice. It took definitive DNA testing to shake her confidence, but she now knows that despite her confidence in her identification, it was wrong. Consumed by guilt, Thompson sought out Cotton when he was released from prison, and they have since become friends (Innocence Project, n.d.; Thompson, 2000).\r\n\r\n<em>Although Jennifer Thompson was positive that it was Ronald Cotton who had raped her, her memory was inaccurate. Conclusive DNA testing later proved that he was not the attacker. Watch this book trailer about the story.<\/em>\r\n\r\n<a href=\"http:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/picking-cotton-video.png\"><img src=\"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/picking-cotton-video-150x150.png\" alt=\"&quot;&quot;\" class=\"alignright wp-image-2649 size-thumbnail\" height=\"150\" width=\"150\" \/><\/a><a href=\"http:\/\/www.youtube.com\/v\/nLGXrviy5Iw\">Watch: \"Picking Cotton: A Memoir of Injustice and Redemption\" [YouTube]<\/a>: http:\/\/www.youtube.com\/watch?v=nLGXrviy5Iw\r\n\r\nJennifer Thompson is not the only person to have been fooled by her memory of events. Over the past 10 years, almost 400 people have been released from prison when DNA evidence confirmed that they could not have committed the crime for which they had been convicted. And in more than three-quarters of these cases, the cause of the innocent people being falsely convicted was erroneous eyewitness testimony (Wells, Memon, &amp; Penrod, 2006).\r\n\r\n<em>Watch this video for Lesley Stahl\u2019s\u00a060 Minutes\u00a0segment on this case.<\/em>\r\n\r\n<a href=\"http:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/eyewitness-testimony.png\"><img src=\"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/eyewitness-testimony-150x150.png\" alt=\"&quot;&quot;\" class=\"alignright wp-image-2650 size-thumbnail\" height=\"150\" width=\"150\" \/><\/a><a href=\"http:\/\/www.youtube.com\/v\/u-SBTRLoPuo\">Watch: \"Eyewitness Testimony\" [YouTube]<\/a>: http:\/\/www.youtube.com\/watch?v=u-SBTRLoPuo\r\n\r\n<em>\u00a0<\/em>\r\n\r\n&nbsp;\r\n\r\n<\/div>\r\nThe two subjects of this chapter are <strong>memory<\/strong>, defined as <em>the ability to store and retrieve information over time<\/em>, and <strong>cognition<\/strong>, defined as <em>the processes of acquiring and using knowledge<\/em>. It is useful to consider memory and cognition in the same chapter because they work together to help us interpret and understand our environments.\r\n\r\nMemory and cognition represent the two major interests of cognitive psychologists. The cognitive approach became the most important school of psychology during the 1960s, and the field of psychology has remained in large part cognitive since that time. The cognitive school was greatly influenced by the development of the electronic computer, and although the differences between computers and the human mind are vast, cognitive psychologists have used the computer as a model for understanding the workings of the mind.\r\n<div class=\"bcc-box bcc-highlight\">\r\n<h3>Differences between Brains and Computers<\/h3>\r\n<ul>\r\n \t<li>In computers, information can be accessed only if one knows the exact location of the memory. In the brain, information can be accessed through <em>spreading activation<\/em> from closely related concepts.<\/li>\r\n \t<li>The brain operates primarily in parallel, meaning that it is multitasking on many different actions at the same time. Although this is changing as new computers are developed, most computers are primarily serial \u2014 they finish one task before they start another.<\/li>\r\n \t<li>In computers, short-term (random-access) memory is a subset of long-term (read-only) memory. In the brain, the processes of short-term memory and long-term memory are distinct.<\/li>\r\n \t<li>In the brain, there is no difference between hardware (the mechanical aspects of the computer) and software (the programs that run on the hardware).<\/li>\r\n \t<li>In the brain, synapses, which operate using an electrochemical process, are much slower but also vastly more complex and useful than the transistors used by computers.<\/li>\r\n \t<li>Computers differentiate memory (e.g., the hard drive) from processing (the central processing unit), but in brains there is no such distinction. In the brain (but not in computers) existing memory is used to interpret and store incoming information, and retrieving information from memory changes the memory itself.<\/li>\r\n \t<li>The brain is self-organizing and self-repairing, but computers are not. If a person suffers a stroke, neural plasticity will help him or her recover. If we drop our laptop and it breaks, it cannot fix itself.<\/li>\r\n \t<li>The brain is significantly bigger than any current computer. The brain is estimated to have 25,000,000,000,000,000 (25 million billion) interactions among axons, dendrites, neurons, and neurotransmitters, and that doesn\u2019t include the approximately 1 trillion glial cells that may also be important for information processing and memory.<\/li>\r\n<\/ul>\r\nAlthough cognitive psychology began in earnest at about the same time that the electronic computer was first being developed, and although cognitive psychologists have frequently used the computer as a model for understanding how the brain operates, research in cognitive neuroscience has revealed many important differences between brains and computers. The neuroscientist Chris Chatham (2007)\u00a0provided the <a href=\"http:\/\/scienceblogs.com\/developingintelligence\/2007\/03\/27\/why-the-brain-is-not-like-a-co\/\">list of differences between brains and computers<\/a> shown here. You might want to check out the website and the responses to it at http:\/\/scienceblogs.com\/developingintelligence\/2007\/03\/27\/why-the-brain-is-not-like-a-co\/\r\n\r\n<\/div>\r\nWe will begin the chapter with the study of memory. Our memories allow us to do relatively simple things, such as remembering where we parked our car or the name of the current prime minister of Canada, but also allow us to form complex memories, such as how to ride a bicycle or to write a computer program. Moreover, our memories define us as individuals \u2014 they are our experiences, our relationships, our successes, and our failures. Without our memories, we would not have a life.\r\n\r\nAt least for some things, our memory is very good (Bahrick, 2000).\u00a0Once we learn a face, we can recognize that face many years later. We know the lyrics of many songs by heart, and we can give definitions for tens of thousands of words. Mitchell (2006)\u00a0contacted participants 17 years after they had been briefly exposed to some line drawings in a lab and found that they still could identify the images significantly better than participants who had never seen them.\r\n\r\n[caption id=\"attachment_194\" align=\"aligncenter\" width=\"200\"]<a href=\"http:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2013\/11\/8a61e45e245a8848bcc4d7ada9e8ae40.jpg\"><img src=\"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2013\/11\/8a61e45e245a8848bcc4d7ada9e8ae40.jpg\" alt=\"&quot;&quot;\" class=\"wp-image-194 size-full\" height=\"257\" width=\"200\" \/><\/a> Figure 9.1 Kim Peek.[\/caption]\r\n\r\nFor some people, memory is truly amazing. Consider, for instance, the case of Kim Peek, who was the inspiration for the Academy Award-winning film <em>Rain Man<\/em> (Figure 9.1 \"Kim Peek\" and \"Video Clip: Kim Peek\"). Although Peek\u2019s IQ was only 87, significantly below the average of about 100, it is estimated that he memorized more than 10,000 books in his lifetime (Wisconsin Medical Society, n.d.; Kim Peek, 2004).\u00a0The Russian psychologist A. R. Luria (2004)\u00a0has described the abilities of a man known as \u201cS,\u201d who seems to have unlimited memory. S remembers strings of hundreds of random letters for years at a time, and seems in fact to never forget anything.\r\n<em>You can view an interview with Kim Peek and see some of his amazing memory abilities at this link.<\/em>\r\n\r\n<a href=\"http:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/kim-peek-video.png\"><img src=\"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/kim-peek-video-150x150.png\" alt=\"&quot;&quot;\" class=\"alignright wp-image-2651 size-thumbnail\" height=\"150\" width=\"150\" \/><\/a><a href=\"http:\/\/www.youtube.com\/v\/dhcQG_KItZM\"><strong>Watch: \"Kim Peek\" [YouTube]<\/strong><\/a>: http:\/\/www.youtube.com\/watch?v=dhcQG_KItZM\r\n\r\nIn this chapter we will see how psychologists use behavioural responses (such as memory tests and reaction times) to draw inferences about what and how people remember. And we will see that although we have very good memories for some things, our memories are far from perfect (Schacter, 1996).\u00a0The errors that we make are due to the fact that our memories are not simply recording devices that input, store, and retrieve the world around us. Rather, we actively process and interpret information as we remember and recollect it, and these cognitive processes influence what we remember and how we remember it. Because memories are constructed, not recorded, when we remember events we don\u2019t reproduce exact replicas of those events (Bartlett, 1932).\r\n\r\nIn the last section of the chapter we will focus primarily on cognition, with a particular consideration for cases in which cognitive processes lead us to distort our judgments or misremember information. We will see that our prior knowledge can influence our memory. People who read the words \u201cdream, sheets, rest, snore, blanket, tired, and bed\u201d and then are asked to remember the words often think that they saw the word <em>sleep<\/em> even though that word was not in the list (Roediger &amp; McDermott, 1995).\u00a0And we will see that in other cases we are influenced by the ease with which we can retrieve information from memory or by the information that we are exposed to after we first learn something.\r\n\r\nAlthough much research in the area of memory and cognition is basic in orientation, the work also has profound influence on our everyday experiences. Our cognitive processes influence the accuracy and inaccuracy of our memories and our judgments, and they lead us to be vulnerable to the types of errors that eyewitnesses such as Jennifer Thompson may make. Understanding these potential errors is the first step in learning to avoid them.\r\n<h2>References<\/h2>\r\nBahrick, H. P. (2000). Long-term maintenance of knowledge. In E. Tulving &amp; F. I. M. Craik (Eds.),\u00a0<i>The Oxford handbook of memory<\/i>\u00a0(pp. 347\u2013362). New York, NY: Oxford University Press.\r\n\r\nBartlett, F. C. (1932).\u00a0<i>Remembering<\/i>. Cambridge, MA: Cambridge University Press.\r\n\r\nBrook, P. (1999, December 15). Accused falls victim to a\u00a0legal nightmare. <em>The Vancouver Sun,<\/em> p. A19.\r\n\r\nChatham, C. (2007, March 27). <a href=\"http:\/\/scienceblogs.com\/developingintelligence\/2007\/03\/27\/why-the-brain-is-not-like-a-co\/\">10 important differences between brains and computers<\/a>.\u00a0<i>Developing Intelligence<\/i>. Retrieved from http:\/\/scienceblogs.com\/developingintelligence\/2007\/03\/27\/why-the-brain-is-not-like-a-co\/\r\n\r\n<span style=\"line-height: 1.5em\">Innocence Project. (n.d.). <a href=\"http:\/\/www.innocenceproject.org\/Content\/72.php\"><em>Ronald Cotton<\/em><\/a>. Retrieved from \u00a0<\/span>http:\/\/www.innocenceproject.org\/Content\/72.php<span style=\"line-height: 1.5em\">.<\/span>\r\n\r\n<a href=\"http:\/\/www.timesonline.co.uk\/tol\/comment\/obituaries\/article6965115.ece\">Kim Peek: Savant who was the inspiration for the film\u00a0<i>Rain Man<\/i><\/a>. (2004, December 23).\u00a0<i>The Times.<\/i>\u00a0Retrieved from\u00a0http:\/\/www.timesonline.co.uk\/tol\/comment\/obituaries\/article6965115.ece\r\n\r\nLuria, A. (2004).\u00a0<i>The mind of a mnemonist: A little book about a vast memory.<\/i>\u00a0Cambridge, MA: Harvard University Press.\r\n\r\nMitchell, D. B. (2006). Nonconscious priming after 17 years: Invulnerable implicit memory?\u00a0<i>Psychological Science, 17<\/i>(11), 925\u2013928.\r\n\r\n<span style=\"line-height: 1.5em\">Roediger, H. L., &amp; McDermott, K. B. (1995). Creating false memories: Remembering words not presented in lists.\u00a0<i>Journal of Experimental Psychology: Learning, Memory, and Cognition, 21<\/i>(4), 803\u2013814.<\/span>\r\n\r\n<span style=\"line-height: 1.5em\">Schacter, D. L. (1996).\u00a0<i>Searching for memory: The brain, the mind, and the past<\/i>\u00a0(1st ed.). New York, NY: Basic Books.<\/span>\r\n\r\n<span style=\"line-height: 1.5em\">Thompson, J. (2000, June 18). <a href=\"http:\/\/faculty.washington.edu\/gloftus\/Other_Information\/Legal_Stuff\/Articles\/News_Articles\/Thompson_NYT_6_18_2000.html\">I was certain, but I was wrong<\/a>.\u00a0<i>New York Times<\/i>. Retrieved from\u00a0http:\/\/faculty.washington.edu\/gloftus\/Other_Information\/Legal_Stuff\/Articles\/News_Articles\/Thompson_NYT_6_18_2000.html<\/span>\r\n\r\n<span style=\"line-height: 1.5em\">Wells, G. L., Memon, A., &amp; Penrod, S. D. (2006). Eyewitness evidence: Improving its probative value.\u00a0<\/span><i style=\"line-height: 1.5em\">Psychological Science in the Public Interest, 7<\/i><span style=\"line-height: 1.5em\">(2), 45\u201375.<\/span>\r\n\r\n<a href=\"http:\/\/www.wisconsinmedicalsociety.org\/_SAVANT\/_PROFILES\/kim_peek\/_media\/video\/expedition\/video.html.\">Wisconsin Medical Society<\/a>. (n.d.). Retrieved from\u00a0http:\/\/www.wisconsinmedicalsociety.org\/_SAVANT\/_PROFILES\/kim_peek\/_media\/video\/expedition\/video.html.\r\n<h2>Image Attributions<\/h2>\r\n<strong>Figure 9.1:<\/strong> Kim Peek by Darold A. Treffert, MD, and the Wisconsin Medical Society (http:\/\/commons.wikimedia.org\/wiki\/File:Peek1.jpg) used under CC BY license.","rendered":"<p>Canada has had its share of memories being introduced into legal cases with devastating results:\u00a0Thomas Sophonow was accused of murdering a\u00a0young waitress who worked in a donut shop in\u00a0Winnipeg, Manitoba.\u00a0Several eyewitnesses testified\u00a0against Sophonow but there were problems with each\u00a0one. For example, the photo array shown to a number\u00a0of witnesses contained a picture of Sophonow, which\u00a0was significantly different than the other men in the\u00a0array.<\/p>\n<p>Dubious allegations of repressed memories forced Michael Kliman, a teacher at\u00a0James McKinney Elementary School\u00a0in Richmond, B.C.,\u00a0\u00a0to endure three trials before his ultimate acquittal. His world came crashing down when he was\u00a0accused of molesting a Grade 6 student some 20\u00a0years earlier, a student who \u201crecovered\u201d her memories 17\u00a0years after the abuse allegedly happened. According to an article in the <em>Vancouver Sun<\/em> (Brook,\u00a01999): \u201cIn 1992, after years of psychiatric treatment,\u00a0she \u2018recovered\u2019 long-lost memories of a year-long\u00a0series of assaults by Kliman and, encouraged by the \u00a0Richmond RCMP, laid charges.\u201d<\/p>\n<div class=\"bcc-box bcc-highlight\">\n<h3>She Was Certain, but She Was Wrong<\/h3>\n<p>In 1984 Jennifer Thompson was a 22-year-old college student in North Carolina. One night a man broke into her apartment, put a knife to her throat, and raped her. According to her own account, Ms. Thompson studied her rapist throughout the incident with great determination to memorize his face. She said:<\/p>\n<p>&#8220;I studied every single detail on the rapist\u2019s face. I looked at his hairline; I looked for scars, for tattoos, for anything that would help me identify him. When and if I survived.&#8221;<\/p>\n<p>Ms. Thompson went to the police that same day to create a sketch of her attacker, relying on what she believed was her detailed memory. Several days later, the police constructed a photographic lineup. Thompson identified Ronald Cotton as the rapist, and she later testified against him at trial. She was positive it was him, with no doubt in her mind.<\/p>\n<p>&#8220;I was sure. I knew it. I had picked the right guy, and he was going to go to jail. If there was the possibility of a death sentence, I wanted him to die. I wanted to flip the switch.&#8221;<\/p>\n<p>As positive as she was, it turned out that Jennifer Thompson was wrong. But it was not until after Mr. Cotton had served 11 years in prison for a crime he did not commit that conclusive DNA evidence indicated that Bobby Poole was the actual rapist, and Cotton was released from jail. Jennifer Thompson\u2019s memory had failed her, resulting in a substantial injustice. It took definitive DNA testing to shake her confidence, but she now knows that despite her confidence in her identification, it was wrong. Consumed by guilt, Thompson sought out Cotton when he was released from prison, and they have since become friends (Innocence Project, n.d.; Thompson, 2000).<\/p>\n<p><em>Although Jennifer Thompson was positive that it was Ronald Cotton who had raped her, her memory was inaccurate. Conclusive DNA testing later proved that he was not the attacker. Watch this book trailer about the story.<\/em><\/p>\n<p><a href=\"http:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/picking-cotton-video.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/picking-cotton-video-150x150.png\" alt=\"&quot;&quot;\" class=\"alignright wp-image-2649 size-thumbnail\" height=\"150\" width=\"150\" srcset=\"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/picking-cotton-video-150x150.png 150w, https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/picking-cotton-video-65x65.png 65w, https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/picking-cotton-video.png 200w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><a href=\"http:\/\/www.youtube.com\/v\/nLGXrviy5Iw\">Watch: &#8220;Picking Cotton: A Memoir of Injustice and Redemption&#8221; [YouTube]<\/a>: http:\/\/www.youtube.com\/watch?v=nLGXrviy5Iw<\/p>\n<p>Jennifer Thompson is not the only person to have been fooled by her memory of events. Over the past 10 years, almost 400 people have been released from prison when DNA evidence confirmed that they could not have committed the crime for which they had been convicted. And in more than three-quarters of these cases, the cause of the innocent people being falsely convicted was erroneous eyewitness testimony (Wells, Memon, &amp; Penrod, 2006).<\/p>\n<p><em>Watch this video for Lesley Stahl\u2019s\u00a060 Minutes\u00a0segment on this case.<\/em><\/p>\n<p><a href=\"http:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/eyewitness-testimony.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/eyewitness-testimony-150x150.png\" alt=\"&quot;&quot;\" class=\"alignright wp-image-2650 size-thumbnail\" height=\"150\" width=\"150\" srcset=\"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/eyewitness-testimony-150x150.png 150w, https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/eyewitness-testimony-65x65.png 65w, https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/eyewitness-testimony.png 200w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><a href=\"http:\/\/www.youtube.com\/v\/u-SBTRLoPuo\">Watch: &#8220;Eyewitness Testimony&#8221; [YouTube]<\/a>: http:\/\/www.youtube.com\/watch?v=u-SBTRLoPuo<\/p>\n<p><em>\u00a0<\/em><\/p>\n<p>&nbsp;<\/p>\n<\/div>\n<p>The two subjects of this chapter are <strong>memory<\/strong>, defined as <em>the ability to store and retrieve information over time<\/em>, and <strong>cognition<\/strong>, defined as <em>the processes of acquiring and using knowledge<\/em>. It is useful to consider memory and cognition in the same chapter because they work together to help us interpret and understand our environments.<\/p>\n<p>Memory and cognition represent the two major interests of cognitive psychologists. The cognitive approach became the most important school of psychology during the 1960s, and the field of psychology has remained in large part cognitive since that time. The cognitive school was greatly influenced by the development of the electronic computer, and although the differences between computers and the human mind are vast, cognitive psychologists have used the computer as a model for understanding the workings of the mind.<\/p>\n<div class=\"bcc-box bcc-highlight\">\n<h3>Differences between Brains and Computers<\/h3>\n<ul>\n<li>In computers, information can be accessed only if one knows the exact location of the memory. In the brain, information can be accessed through <em>spreading activation<\/em> from closely related concepts.<\/li>\n<li>The brain operates primarily in parallel, meaning that it is multitasking on many different actions at the same time. Although this is changing as new computers are developed, most computers are primarily serial \u2014 they finish one task before they start another.<\/li>\n<li>In computers, short-term (random-access) memory is a subset of long-term (read-only) memory. In the brain, the processes of short-term memory and long-term memory are distinct.<\/li>\n<li>In the brain, there is no difference between hardware (the mechanical aspects of the computer) and software (the programs that run on the hardware).<\/li>\n<li>In the brain, synapses, which operate using an electrochemical process, are much slower but also vastly more complex and useful than the transistors used by computers.<\/li>\n<li>Computers differentiate memory (e.g., the hard drive) from processing (the central processing unit), but in brains there is no such distinction. In the brain (but not in computers) existing memory is used to interpret and store incoming information, and retrieving information from memory changes the memory itself.<\/li>\n<li>The brain is self-organizing and self-repairing, but computers are not. If a person suffers a stroke, neural plasticity will help him or her recover. If we drop our laptop and it breaks, it cannot fix itself.<\/li>\n<li>The brain is significantly bigger than any current computer. The brain is estimated to have 25,000,000,000,000,000 (25 million billion) interactions among axons, dendrites, neurons, and neurotransmitters, and that doesn\u2019t include the approximately 1 trillion glial cells that may also be important for information processing and memory.<\/li>\n<\/ul>\n<p>Although cognitive psychology began in earnest at about the same time that the electronic computer was first being developed, and although cognitive psychologists have frequently used the computer as a model for understanding how the brain operates, research in cognitive neuroscience has revealed many important differences between brains and computers. The neuroscientist Chris Chatham (2007)\u00a0provided the <a href=\"http:\/\/scienceblogs.com\/developingintelligence\/2007\/03\/27\/why-the-brain-is-not-like-a-co\/\">list of differences between brains and computers<\/a> shown here. You might want to check out the website and the responses to it at http:\/\/scienceblogs.com\/developingintelligence\/2007\/03\/27\/why-the-brain-is-not-like-a-co\/<\/p>\n<\/div>\n<p>We will begin the chapter with the study of memory. Our memories allow us to do relatively simple things, such as remembering where we parked our car or the name of the current prime minister of Canada, but also allow us to form complex memories, such as how to ride a bicycle or to write a computer program. Moreover, our memories define us as individuals \u2014 they are our experiences, our relationships, our successes, and our failures. Without our memories, we would not have a life.<\/p>\n<p>At least for some things, our memory is very good (Bahrick, 2000).\u00a0Once we learn a face, we can recognize that face many years later. We know the lyrics of many songs by heart, and we can give definitions for tens of thousands of words. Mitchell (2006)\u00a0contacted participants 17 years after they had been briefly exposed to some line drawings in a lab and found that they still could identify the images significantly better than participants who had never seen them.<\/p>\n<figure id=\"attachment_194\" aria-describedby=\"caption-attachment-194\" style=\"width: 200px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2013\/11\/8a61e45e245a8848bcc4d7ada9e8ae40.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2013\/11\/8a61e45e245a8848bcc4d7ada9e8ae40.jpg\" alt=\"&quot;&quot;\" class=\"wp-image-194 size-full\" height=\"257\" width=\"200\" srcset=\"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2013\/11\/8a61e45e245a8848bcc4d7ada9e8ae40.jpg 200w, https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2013\/11\/8a61e45e245a8848bcc4d7ada9e8ae40-65x83.jpg 65w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/a><figcaption id=\"caption-attachment-194\" class=\"wp-caption-text\">Figure 9.1 Kim Peek.<\/figcaption><\/figure>\n<p>For some people, memory is truly amazing. Consider, for instance, the case of Kim Peek, who was the inspiration for the Academy Award-winning film <em>Rain Man<\/em> (Figure 9.1 &#8220;Kim Peek&#8221; and &#8220;Video Clip: Kim Peek&#8221;). Although Peek\u2019s IQ was only 87, significantly below the average of about 100, it is estimated that he memorized more than 10,000 books in his lifetime (Wisconsin Medical Society, n.d.; Kim Peek, 2004).\u00a0The Russian psychologist A. R. Luria (2004)\u00a0has described the abilities of a man known as \u201cS,\u201d who seems to have unlimited memory. S remembers strings of hundreds of random letters for years at a time, and seems in fact to never forget anything.<br \/>\n<em>You can view an interview with Kim Peek and see some of his amazing memory abilities at this link.<\/em><\/p>\n<p><a href=\"http:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/kim-peek-video.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/kim-peek-video-150x150.png\" alt=\"&quot;&quot;\" class=\"alignright wp-image-2651 size-thumbnail\" height=\"150\" width=\"150\" srcset=\"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/kim-peek-video-150x150.png 150w, https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/kim-peek-video-65x65.png 65w, https:\/\/opentextbc.ca\/introductiontopsychology\/wp-content\/uploads\/sites\/9\/2014\/09\/kim-peek-video.png 200w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><a href=\"http:\/\/www.youtube.com\/v\/dhcQG_KItZM\"><strong>Watch: &#8220;Kim Peek&#8221; [YouTube]<\/strong><\/a>: http:\/\/www.youtube.com\/watch?v=dhcQG_KItZM<\/p>\n<p>In this chapter we will see how psychologists use behavioural responses (such as memory tests and reaction times) to draw inferences about what and how people remember. And we will see that although we have very good memories for some things, our memories are far from perfect (Schacter, 1996).\u00a0The errors that we make are due to the fact that our memories are not simply recording devices that input, store, and retrieve the world around us. Rather, we actively process and interpret information as we remember and recollect it, and these cognitive processes influence what we remember and how we remember it. Because memories are constructed, not recorded, when we remember events we don\u2019t reproduce exact replicas of those events (Bartlett, 1932).<\/p>\n<p>In the last section of the chapter we will focus primarily on cognition, with a particular consideration for cases in which cognitive processes lead us to distort our judgments or misremember information. We will see that our prior knowledge can influence our memory. People who read the words \u201cdream, sheets, rest, snore, blanket, tired, and bed\u201d and then are asked to remember the words often think that they saw the word <em>sleep<\/em> even though that word was not in the list (Roediger &amp; McDermott, 1995).\u00a0And we will see that in other cases we are influenced by the ease with which we can retrieve information from memory or by the information that we are exposed to after we first learn something.<\/p>\n<p>Although much research in the area of memory and cognition is basic in orientation, the work also has profound influence on our everyday experiences. Our cognitive processes influence the accuracy and inaccuracy of our memories and our judgments, and they lead us to be vulnerable to the types of errors that eyewitnesses such as Jennifer Thompson may make. Understanding these potential errors is the first step in learning to avoid them.<\/p>\n<h2>References<\/h2>\n<p>Bahrick, H. P. (2000). Long-term maintenance of knowledge. In E. Tulving &amp; F. I. M. Craik (Eds.),\u00a0<i>The Oxford handbook of memory<\/i>\u00a0(pp. 347\u2013362). New York, NY: Oxford University Press.<\/p>\n<p>Bartlett, F. C. (1932).\u00a0<i>Remembering<\/i>. Cambridge, MA: Cambridge University Press.<\/p>\n<p>Brook, P. (1999, December 15). Accused falls victim to a\u00a0legal nightmare. <em>The Vancouver Sun,<\/em> p. A19.<\/p>\n<p>Chatham, C. (2007, March 27). <a href=\"http:\/\/scienceblogs.com\/developingintelligence\/2007\/03\/27\/why-the-brain-is-not-like-a-co\/\">10 important differences between brains and computers<\/a>.\u00a0<i>Developing Intelligence<\/i>. Retrieved from http:\/\/scienceblogs.com\/developingintelligence\/2007\/03\/27\/why-the-brain-is-not-like-a-co\/<\/p>\n<p><span style=\"line-height: 1.5em\">Innocence Project. (n.d.). <a href=\"http:\/\/www.innocenceproject.org\/Content\/72.php\"><em>Ronald Cotton<\/em><\/a>. Retrieved from \u00a0<\/span>http:\/\/www.innocenceproject.org\/Content\/72.php<span style=\"line-height: 1.5em\">.<\/span><\/p>\n<p><a href=\"http:\/\/www.timesonline.co.uk\/tol\/comment\/obituaries\/article6965115.ece\">Kim Peek: Savant who was the inspiration for the film\u00a0<i>Rain Man<\/i><\/a>. (2004, December 23).\u00a0<i>The Times.<\/i>\u00a0Retrieved from\u00a0http:\/\/www.timesonline.co.uk\/tol\/comment\/obituaries\/article6965115.ece<\/p>\n<p>Luria, A. (2004).\u00a0<i>The mind of a mnemonist: A little book about a vast memory.<\/i>\u00a0Cambridge, MA: Harvard University Press.<\/p>\n<p>Mitchell, D. B. (2006). Nonconscious priming after 17 years: Invulnerable implicit memory?\u00a0<i>Psychological Science, 17<\/i>(11), 925\u2013928.<\/p>\n<p><span style=\"line-height: 1.5em\">Roediger, H. L., &amp; McDermott, K. B. (1995). Creating false memories: Remembering words not presented in lists.\u00a0<i>Journal of Experimental Psychology: Learning, Memory, and Cognition, 21<\/i>(4), 803\u2013814.<\/span><\/p>\n<p><span style=\"line-height: 1.5em\">Schacter, D. L. (1996).\u00a0<i>Searching for memory: The brain, the mind, and the past<\/i>\u00a0(1st ed.). New York, NY: Basic Books.<\/span><\/p>\n<p><span style=\"line-height: 1.5em\">Thompson, J. (2000, June 18). <a href=\"http:\/\/faculty.washington.edu\/gloftus\/Other_Information\/Legal_Stuff\/Articles\/News_Articles\/Thompson_NYT_6_18_2000.html\">I was certain, but I was wrong<\/a>.\u00a0<i>New York Times<\/i>. Retrieved from\u00a0http:\/\/faculty.washington.edu\/gloftus\/Other_Information\/Legal_Stuff\/Articles\/News_Articles\/Thompson_NYT_6_18_2000.html<\/span><\/p>\n<p><span style=\"line-height: 1.5em\">Wells, G. L., Memon, A., &amp; Penrod, S. D. (2006). Eyewitness evidence: Improving its probative value.\u00a0<\/span><i style=\"line-height: 1.5em\">Psychological Science in the Public Interest, 7<\/i><span style=\"line-height: 1.5em\">(2), 45\u201375.<\/span><\/p>\n<p><a href=\"http:\/\/www.wisconsinmedicalsociety.org\/_SAVANT\/_PROFILES\/kim_peek\/_media\/video\/expedition\/video.html.\">Wisconsin Medical Society<\/a>. (n.d.). Retrieved from\u00a0http:\/\/www.wisconsinmedicalsociety.org\/_SAVANT\/_PROFILES\/kim_peek\/_media\/video\/expedition\/video.html.<\/p>\n<h2>Image Attributions<\/h2>\n<p><strong>Figure 9.1:<\/strong> Kim Peek by Darold A. Treffert, MD, and the Wisconsin Medical Society (http:\/\/commons.wikimedia.org\/wiki\/File:Peek1.jpg) used under CC BY license.<\/p>\n","protected":false},"author":1,"menu_order":1,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-195","chapter","type-chapter","status-publish","hentry"],"part":448,"_links":{"self":[{"href":"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-json\/pressbooks\/v2\/chapters\/195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":27,"href":"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-json\/pressbooks\/v2\/chapters\/195\/revisions"}],"predecessor-version":[{"id":4640,"href":"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-json\/pressbooks\/v2\/chapters\/195\/revisions\/4640"}],"part":[{"href":"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-json\/pressbooks\/v2\/parts\/448"}],"metadata":[{"href":"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-json\/pressbooks\/v2\/chapters\/195\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-json\/wp\/v2\/media?parent=195"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-json\/pressbooks\/v2\/chapter-type?post=195"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-json\/wp\/v2\/contributor?post=195"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/opentextbc.ca\/introductiontopsychology\/wp-json\/wp\/v2\/license?post=195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}