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Essays on the nature of human memory
Essays on the nature of human memory
Human memory unreliable due to misinformation primary research
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Xiuping Tan
WLD57S: Paper 2
Unreliability of Human Memory
The human brain is not a computer. A computer can store hundreds and thousands of documents and files permanently in its memory, but the human brain can not. Computer files can be stored permanently in secondary storage devices such as external hard drives and USB. On the other hand, human memory is neither transferable nor material. The human brain can not store memory permanently and accurately. Although the human brain is marvellous, human memory is highly unreliable due to memory distortion.
First of all, human memory tends to distort and bias in favor of current thoughts. That is, when we perceive new beliefs that are different from the memories in our mind, we often trust the
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For instance, I had a trip to San Francisco’s Angel Island when I was in high school. I visited the Angel Island immigration station, which is a former processing center for immigrants entering the United States. In the building, there are rooms with sets of bunk beds. I saw things that immigrants used before and read the poems that they wrote on the wall. There are yards and activity rooms inside the building for the immigrants. It is a nice building with a beautiful environment. Based on what I saw, I used to believe that Angel Island is a nice place for immigrants to stay before their immigration status was processed. Later, when I searched online about the immigration station, I found out that Angel Island was almost like a prison for the immigrants. Immigrants were not allowed to move freely in the building. There were many restrictions and harsh treatments to the immigrants. When I think about the Angel Island now, I view it as a horrible place for former immigrants despite the beautiful environment I saw. Even though the memory of the actual observation may be remembered correctly, we tend to distort our memory with the given suggested information. External factors can affect our credibility to our own memory and thus make the memory to become
Memories can be altered based on acquisition, storage, and retrieval. Acquisition is what we notice or perceive based on what we are paying attention to. Storage is what information gets stored into one’s memory. Retrieval correlates with the false memory syndrome, which is recalling a previous traumatic experience that is false but believed to be true. The false memory syndrome is often noticed during police interrogations and leads to coerced confessions, which is when the individual being interrogated is essentially pressured to confess.
Humans have an incredible capability for thinking and memory. We can remember events from our past, for our future, and of things that have no relative meaning to ourselves. These memories can be traced back to different systems of our brains through a process of encoding, storage, and retrieval. As part of the retrieval process, memories can be remembered with or without their sources. As research has found, our memories are not labeled or tagged with their origin (Johnson, Hashtroudi, & Lindsay 1993). Because of this, our memory has developed a process called source monitoring. This is how we link our memories to the source that they developed from, usually using specific characteristics and general knowledge of the memory. For example, source monitoring includes identifying who told you something, whether or not you saw an event in real life, the time of the event and whether you told something to your friend or only thought about telling it. The source-monitoring framework for the process involved in pinpointing the origin of information by Johnson and colleagues, explains both vertical and distorted memory with a common set of principles. First, a specific memory consists of specific characteristics including spatial, temporal, and perceptual details. Secondly, the memories can differ in characteristics that can be used to find the origin. More extensive source monitoring can involve beliefs about memory and cognition as well as retrieving more information from memory and finding the source of the memory given these beliefs, other specific characteristics or general knowledge (Johnson et al. 1993). Sometimes these beliefs aren't always accurate. Because some people may be influenced by their personal ideologies during retriev...
That might have been a little dark, but it 's true; false memories happen to everyone, but they usually go unnoticed. A false memory is simply a memory of an experience that has been distorted. Your brain fills in the missing pieces of a memory with many possible things: details from a dream, something you saw on television, or even information from a different memory. In Erika Hayasaki’s article How Many of Your Memory Are Fake? he says, "Memory distortions are basic and widespread in humans, and it may be unlikely that anyone is immune." It 's frightening that these memory distortions are so common yet so many people go their whole life unaware of them. Jonah Lehrer’s article, The Forgetting Pill Erases Painful Memories Forever backs up Hayasaki 's point by saying, "since the time of the ancient Greeks, people have imagined memories to be a stable form of information that persists reliably." Proving that people have strong confidence in their memories, he then goes on to say, "Even though every memory feels like an honest representation, that sense of authenticity is the biggest lie of all." Lehrer is saying that the confidence in our
False memory occurs when an event that never happened is remembered or it differs from reality. This effect can be created using a Deese-Roediger-McDermott (DRM) list. Each list contains 12 words associated with each other, and a critical non-presented word (CNPW) or lure word. Following the presentation of a DRM list, a recognition test shows that participants claim to confidently remember the lure word in great detail, although it was not presented. According to the spreading activation theory, the presentation of a word activates its semantic network, which includes the lure word, during encoding. Therefore, the presented word and the lure word are encoded. Consequently, the more this semantic network is activated through associated words, the greater the false encoding of the lure word. The DRM list activates the critical lure word 12 times. False memory, such as a participant misidentifying a lure word as a presented item, is a consequence
When an individual is trying to remember a certain memory or piece of information that is already learned, they access their long term memory to determine that memory. Studies have been conducted to prove that the theory of retrieval induced forgetting is true. An example of recognition induced for getting is the infamous eye witness testimony. When the victim is brought to the police station and told to choose which person in the line is the cause of the crime, the time spent between the actual crime and the trip to the police station can cause an issue with the witness remembering who the suspect was. Eye witness testimonies are considered an inaccurate way to catch a criminal because the victim can accuse the wrong person. Even in children, there are concerns when teaching a child, if they should access their long term memory to effectively learn. In present studies, retrieval induced forgetting was tested to prove if recognizing recent information causes harm to already learned information. In regards to the child learning, the downside of accessing their long term memory is the same as an adult. It is shown that retrieval induced forgetting can cause impairment to memory. Even when retrieval induced forgetting is an issue it is believed that one of the reasons that memory impairment is a hard subject to solve is because it only affects verbal memory not
False memories can be formed in many ways. Prior knowledge has been proven to impact perception. A study done by Hastorf and Cantril in 1954 explains this. They had two groups watch a game versus Princeton and Dartmouth and had participants count penalties. On average, the Dartmouth fans counted an equal amount of penalties while the Princeton fans claimed that Dartmouth had twice as many penalties. These results are consistent with a previous conception that Dartmouth fans thought the game was rough but reasonable and the Princeton fans had a previous conception that Dartmouth plays unreasonable (Hunt, 2004). People perceive and encode events differently, so stored memories can be influenced by intervening events and conditions during retrieval can lead to false memories (Roediger, 2002).
Most interpretations of history are to some extend based on an arbitrary selection of events influenced by ideology. Accordingly, they can easily assume a mythical character, which can function to legitimize social and political practices or mobilize action or identification with a cause through anchoring of the present in the past and actualization of the past in the present. Through this mythologization, nations, social groups or set of individuals produce its collective memory and establish their distinctive identity (Wistrich and Ohana 1995: ix). In order to understand how the Zionist movement creates their specific view on the Diaspora, and how Gordon uses this view to establish a distinct identity for the Jewish people, we must understand the mechanics of collective memory.
The mammalian brain contains several different memory systems, which can be divided into declarative and non-declarative memory systems. Declarative memory can be further divided into episodic and semantic memory, and non-declarative memory can be divided into priming, associative learning, and procedural memory.
The brain has many functions in which it helps process and understands information. One aspect of the brain is its memory. Memory is there so information can be used to understand what is happening around someone. The function of memory is somewhat of an enigma to many scientists. How does the brain store and retrieve such information and at such high speeds? Although it is hard to conceive the actual machine working behind memory scientist have been able to figure out the physiology behind this process. The brain is composed of millions of neurons. Communication between these neurons is by using nerve impulses from the axon of one neuron to the dendrites of another. This is called a synapse. All impulses are transmitted by a chemical substance, which is called a neurotransmitter. Scientists have not been able to explain the actual processes that occur within memory. They cannot explain why people can remember something's and not other or why some learning strategies are better then others. It turns into more of a guessing game using analogies to explain what happens. Memory has been compared to the way " we rummage our house for a lost object." That is the way the brain works in terms of memory. The confusing part is how one can store it retrieving it and even use it to decipher harder more complex problems. In one early theory memory is broken down into two areas. These areas are primary memory and secondary memory. Primary memory is said to not have to be retrieved. It was never lost and it is what is seen in present time. Secondary memory is a place where everything can be stored, but the difference is secondary memory has to be retrieved and cannot be used like primary me...
When someone or something gives you misleading information that leads you to change or distort your memory of an event or experience is known in psychology as the misinformation effect (Myers & DeWall, 2015). This phenomenon usually happens unconsciously and people do not notice it. An example of this is when one is telling a friend about a childhood memory and they fill in parts of the memory
Similar studies were done to a different set of college students and they tended to have the same results. After giving as much detail about each memory, the students were interviewed about what they may have written done about what they had remembered. During the last part of the experiment, each of the students were debriefed and asked to guess which memory they believed was false.
In recent years there has been a hot debate between "repressed" vs. "false" memories. Neurobiological studies show that both suppression and recall and the creation of false memories are possible. This paper evaluates the evidence but forth by both sides of the controversy and concludes that both are feasible and separate phenomenon, which occur at significant rates in our society.
Bartlett’s “War of the Ghosts” experiment (1932) is a classic example of false memories. The results of his study found participants would unintentionally alter the information of a story they read in a way that was more reflective of their own lives. Otagaar, et.al. (2013) examined false memories by developing non-believed memories in adults and children about taking a ride in a hot air balloon. The results of this study found that when the participants were asked immediately after reading a passage about this memory, most did not recall going on a hot air balloon. However, when the participants were called back a few months later, a higher percentage of participants recalled having experienc...
People fail to notice when they are presented with something different from what they originally chose and tend to come up with explanations as to why they picked that specific choice. In this research paper, Cochran, Greenspan, Bogart, and Loftus discuss how choice blindness can lead to distorted eyewitness memories. In their experiment, the studied if the participants in their research realized modifications to their memory reports and if these changes could possibly effect the participants’ memory. Cochran, Greenspan, Bogart, and Loftus conducted two different experiments. Experiment 1 was constructed on two self-sourced vs. other-sourced between participants and two misinformation vs. control within participants. They had participants watch a slideshow that showed a woman intermingling with three other characters and one of them steals her wallet. Then they completed a personality measure in 15 minute retention interval which was followed by questions about their memories from the slideshow. After, they were given another 15 minute retention interval and then shown their responses to the memory question, but three of their responses were revised. According to Cochran, Greenspan, Bogart, and Loftus (2016), “experiment 1 demonstrated that when witnesses were exposed to altered versions of their own memory reports for episodic details of an event, their memories changed to be consistent with
Our memories out do any computer, we can remember 200 bits of information per second. People nowadays rely on computers, phones, and calculators when in fact the best tool to use is inside of us. Although we tend to remember things that are of high importance to us, we all at some point have experienced something we would rather forget. However, we learn from our experiences so erasing those memories would not be in our best interest. As we get older we lose our white matter and chemical messengers yet our memories from the past are retained.