Lecture 7 - Lecture 7 Memory A general term for storage...

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Lecture 7 Memory A general term for storage, retention and recall of events, information and procedures Amnesia after brain damage Amnesia is a severe loss of memory H.M.= classical case In 1953, H.M. had his 2 hippocampi and surrounding tissue from the temporal lobes removed (Movie: Memento (2000) About a man, suffering from short-term memory loss Hippocampus is critical for Memory consolidation After surgery: H.M. Had massive anterograde amnesia- was unable to store any new memories Had moderate retrograde amnesia- couldn’t remember many events from 1-3 yrs. before surgery Did retain STM (short term memory) His procedural memory was retained Retrograde amnesia = difficulty retrieving old memory Anterograde amnesia = difficulty learning new information Why do we forget? Catastrophic loss of memory can only result from brain damage or disease “Normal” forgetting is a product of adaptive mechanisms Remembering everything that happened would be overwhelming and debilitating Cued-recall= being given partial information to aid the recall
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