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Memory
Chapter 3
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Memory – process of recalling prior events, experiences, and information from the past
Input – receive information from sensesa.k.a - encoding
Central processing – storing and sortingOutput/retrieval – ideas and actions from
info.
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InputSelective attention – ability to pick and choose among various inputs
Ex. Studying while watching t.v.
Feature extraction – locating characteristics of incoming info.
Ex. Car accident/bank robbery
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Encoding – put information into memory codesVisual codes – make a mental picture
ex. spell my name
Acoustic codes (auditory code)- remember as spokenex. say my name
Semantic codes – “relating to meaning” make sense of the information
ex. remember car parked in front of house night of robbery but may not remember specifics
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Storage – maintain in memory
Maintenance rehearsal – repeating the information over and over
Elaborative rehearsal – relate to information you already know really well
Organizational systems – similar to files
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Storage cont.
Types of Memory Explicit memory – deliberately try to remember something
Episodic memory – memory of a specific event
Flashbulb memories – photographed it in every detail
Semantic memory – general knowledge
Implicit memory – unintentional recollection and influence of prior experiencesEx. Root beer barrels - shiverex. don't like someone first time meet but don't
know why - looks like someone
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Retrieval – recover from memory
Recall – reconstruction of information1. Context-dependant memories – the
situation where a person first experienced the memory
Ex. Test better in math if in same math room as where taught
2. State-dependent memory – remember better if in the same emotional state
3. Tip-of-the-tongue phenomenon – incomplete or improperly stored memoriesRecognition -Retrieval aided by clues
ex. multiple choice testsex. police line up
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Three Stages of Memory
Sensory StorageShort Term memoryLong term memory
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Sensory storage – image of a memory held for a brief second
Iconic memory - snapshots (fraction of a second)
Echoic memory – sounds (last several seconds)**easier to remember list of word
spoken than written)Eidetic imagery - photographic
memory
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Short-term memory - working memory
7 unrelated items for 20 seconds
Primacy effect - remember first items in a list
Recency effect - remember last items in a list
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spoonbirdstandrakepolesandpanbrushtentflame
ethicsfairlyspontaneousnoisyfifteeensiftingstrumresponseperceiveenlighten
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Long-term memoryRetroactive interference - new information interferes with old information
Proactive interference - old information interferes with learning new information
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Interference - When new information appears and takes place of information already in short-term memory
Ex. mom asks question while remembering phone #
Chunking - organization of items into unitsEx. Phone numbers, social security
numbers
Short term memory cont.
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7253469840
(648) 974-2396M2511017351400M251-1017-3514-00
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Confabulation - memory that was never thereEx. Yield sign vs. stop signEx. Eyewitness testimony
Repression - material still exists but inaccessible because it is disturbing
Eidetic memory - photographic memoryex. Kim Peeks
Long term memory continued
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Biological bases of memoryAcetylcholine - neurotransmitter that affects memory
Problem found in Alzheimer’s patients
Brain structuresAnterograde amnesia - loss of memory after
the injuryRetrograde amnesia - loss of memory of
events before the injury
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Processing informationMnemonics - strategies for placing information into organized context
Ex. HOMESSet - strategy becomes a habit
Ex. MonopolyRigidity - set interferes with problem solving
Ex. Black, white, read
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Processing Info. Continued
Functional fixedness - inability to imagine new functions for familiar objects Creativity - ability to use information in a new, original way Flexibility - ability to overcome rigidity Recombination - new mental rearrangement of the elements
Ex. Dance moves Insight - sudden emergence of a solution by
recombination of elementsEx. Chimps,bananas
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