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Chapter 7 - part II.doc

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PSY100H1S Oct. 16 & 18, 2012 Attention and Memory Lecture - Chapter 7 Long-term memory: Information Organization • Retrieval cue: anything that is encoded can be a retrieval cue - anything encoded / any stimulus Context-dependent memory: the context that you are in when recalling is similar when you encoded • ‣ lots of evidence that it exists and works ‣ anything in that environmental context Examples of CDM • the scuba diver study: the context meshed the encoding information. • there was either a match or mismatch • they recalled more if the recall situation matched the encoding situation i.e. better to recall words in environment you learned them • use this to your advantage: • background noise / music there is memory enhancement • • revisiting a childhood home • you get a “flood” of memories • suddenly you start remembering all of these things that happened while you were there • if you can’t recreate the environment you call mentally visualize the location • it also tends to lead to better recall • stress can interfere with mental recall State dependent memory: • looking at your internal state e.g. mood, drugs, etc. • if the internal state matched in encoding and recalling is the same it also enhances the memory recall The Biology of Memory • there is not a “memory part” of your brain • medial temporal lobe: • H.M. e.g. - he was no longer able to form new memories • everyday from the surgery was a new day for him • the medial temporal lobe are really important for declarative memory: what we know for sure • he still had part of his procedural / motor memory - even though he did not remember he got better • also see Clive Wearing (YouTube) • reconsolidation: every time we think of an old memory it might not be the same as the original was PSY100H1S Oct. 16 & 18, 2012 Attention and Memory Lecture - Chapter 7 • a lot of the time our memories get flawed, biased, changed from the original memory • Hippocampus: important for spatial memory i.e. environment memory (where you are, where you’re go- ing) • e.g. Rats and the Morris Water Maze: when they have damage to the Hippocampus the 8th trial looks the same as the 1st trial. They never learn where the platform is • Frontal lobe: really important for almost every different type of memory • • encoding any type o
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