Week 8 - Day 3 Notes (Ch 8 cont. Forgetting)
Quizlet: https://quizlet.com/_22w3gj
Consolidation
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Consolidation: a process by which immediate memories become lasting (or long-term) memories
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The medial (middle) temporal lobes may be responsible for coordinating and strengthening the connections among neurons when something is learned and play an important role in the formation of new memories
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Actual storage occurs in the particular brain regions engaged during the perception, processing, and analysis of the material being learned (e.g. sound is stored in the areas involved in auditory perception)
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Remembering something seen or heard involves reactivating the cortical circuits involved in the initial seeing or hearing
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Once the connections are strengthened sufficiently, the medial temporal lobes become less important for memory
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Once you have something solidly in long term memory, it's not likely to be
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Replacement: New information replaces old information
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proactive interference
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retroactive interference
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Cue-dependent forgetting
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other processes
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state-dependent memory
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mood-congruent memory
Forgetting is the inability to retrieve memory from long-term storage
The ability to forget is as important as the ability to remember
Normal forgetting helps us remember and use important information
Basic approaches
Decay theory: information (memory) fades if not used or accessed often
Interference
Cue-dependent forgetting
Amnesia
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Pervasive deficit in retrieval from long-term memory
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Results from disease, breain injury, or psychology trauma
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skills vs. information
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Two basic types:
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Retrograde amnesia
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Anterograde amnesia
Memory Distortion
Memory Bias
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Memory bias: the changing of memories over time so that they become consistent with current beliefs or attitudes
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Groups’ collective memories can seriously distort the past
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Most societies’ official histories tend to downplay their past behaviors that were unsavory, immoral, and even murderous
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Individuals also tend to remember events as casting them in prominent or favorable roles
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Thinking about you were the one in charge in situations you are involved in
Flashbulb memories
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Vivid memories of surprising or emotionally arousing event
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“Where were you when…?”
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Distinguished from persistence
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Not recurring, unwanted memories
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Tend to be inaccurate, although they are reputed to be super-accurate
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Highly detailed: Who, what, when, where, etc.
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Doesn't make it right
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9/11/2001
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People claim to have seen live video of first plane
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Not shown live on the news
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People feel like they know that they saw it
Source missatributions
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Source misattribution
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Memory distortion that occurs when people misremember the time, place, person, or circumstances involved with a memory
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Confabulation
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Confusing an event that happened to someone else with one that happened to you
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Belief that you remember something when it actually never happened
False memories
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Can be created by suggestibility
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Development of biased memories from misleading info
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Influenced by wording of questions
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Witness a accident
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How fast were the cars going when they…
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“Smashed into each other”
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“Collided into each other”
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Smashed = faster
Eyewitness accounts
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One of the most powerful forms of evidence
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Prone to error: not paying attention to right details
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Change blindness
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Memory bias
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Reconstruct memories to be consistent with current believes and attitudes
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Cross-ethnic identification
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White witness will recognize White faces
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White witness will not recognize Black faces
Picking cotton
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Jennifer Thompson was raped
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Studied rapist’s face
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Identified Ronald Cotton as attacker
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Sentenced to life
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DNA = not guilty
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11 years served
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Actual rapist = Bobby Poole
Vocab
forgetting | the inability to retrieve memory from long term storage |
decay theory |
The idea that information fades from memory if not used or accessed often |
replacement |
When new information replaces old information |
proactive interference |
prior information inhibits learning new information (studying for anthropology makes you forget what you studied for psychology) |
retroactive interference |
new information inhibits learning old informatin |
cue-dependent forgetting |
the inability to retrieve information storedin memory because of insuffiecient cuesfor recall |
state-dependent memory |
Able to remember certian information when in the same physical or mental state you learned it (study drunk; take test drunk) |
mood-congruent memory |
tendency to remember experiences that are consistent with one's current mood and overlook or forget experiences that are not (camp is awesome because you forget you have to sleep outside) |
retrograde amnesia | lose past memories (most portrayals of amnesia) |
anterograde amnesia |
lose ability to form new memories |
memory bias |
the changing of memories over time so that they become consistent with current beliefs or attitudes |
flashbulb memories |
vivid memories of surprising emotionally arousing event (challenger exploding. Tend to be innacurate) |
misattribution |
Memory distortion that occurs when people misremember the time, place, person, or circumstances involved with a memory |
confabulation |
Confusing an event that happened to someone else with one that happened to you |
suggestibility | development of biased memories from misleading info |
Ronald cotton | Sentenced to life for rape by white victim (dna showed he was not guilty after he served 11 years) |