Memory and Brain Activity

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Memory and Brain Activity Memory is the mental process of retaining and retrieving information such as facts, events, and experiences. Memory is not always accurate (Hunt, 2004). Memory errors are common and natural; they are the result of normal cognitive processes of comprehension and perception, which can cause interference about incoming information. There are two errors of remembering; forgetting an event that occurred and remember an event that never occurred or remembering it in a way different from how it occurred. Memories can be distorted, and one may have no awareness that the memory is distorted. This is false memory (Roediger, 2002). Prior Knowledge's Effect on Memory 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). Eyewitness Testimonies Stereotypes influence social judgments. Social judgments are predisposed options on a social group, kind of like a stereotype. If a predisposed bias as if the one presented below is so powerful on memory, then a racial bias on an eye... ... middle of paper ... ...tion. In true recognition, there was more activity in temporal lobe on left hemisphere, which store sounds of words. These differences turned out to be due to the details of the procedure, they performed separate scans for the actual presented words, and the not presented but related words, and for unrelated new words (Schacter, 2001). Epinephrine and norepinephrine also have shown to improve memory because increase glucose levels in the blood, and they affect the amygdala, which plays a part in emotional memory (Durand, 2005). Neurons in the basolateral amygdala that were activated during a fear conditioning were activated again during memory retrieval of the feared object. The amount of reactivated neurons showed a correlation with the behavior associated of that fear memory; this indicates a correlation between neurons of the amygdala and memory (Scripps, 2007).

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