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Lecture 12

PS102 Lecture Notes - Lecture 12: Episodic Memory, Basal Ganglia, Amnesia


Department
Psychology
Course Code
PS102
Professor
Joanne Lee
Lecture
12

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Chapter 7 - Memory
Retrieval: Distinctiveness
Flashbulb memories
oRetrieving emotional memory
oLong-term memory sometimes links strong emotion to vivid and
detailed episodic memories
oE.g. remembering a proposal after being married for many years
Distinctiveness
Flashbulb memories
oVivid, clear recollections
oLike a ‘snapshot’ in time
oNot as accurate as they were presumed to be
What Interferes with Retrieval
Interference Theory
oProactive Interference
Past material interferes with recall of newer material
oRetroactive Interference
New information interferes with ability to recall older
information
Why Do We Forget?: Decay
Forgetting is a decrease in the ability to retrieve a previously formed memory
Forgetting
Ebbinghaus
Forgetting: Why Do We Forget?

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Encoding failure
oLack of attention?
oLack of deep processing?
E.g. failure to encode
oDetails that are not important to us
Forgetting: Recent Memories
Decay
oMemory trace becomes eroded
oBirth of new neurons in the hippocampus leads to decay of memories
in that brain region
oHappens naturally
Displacement
oItems are pushed out of memory
Forgetting: Long Term Memory
Interference Theory
oProactive Interference
Past material interferes with recall of newer material
oRetroactive Interference
New information interferes with ability to recall older
information
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