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Forgetting and Amnesia These notes are very concise and only contain information outside of his lecture slides. I find that reading over his slides first and then studying these additional information to be more efficient than clumping a whole mass of mat

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Colin Mac Leod

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As long as memory was encoded into long-term memory, you don’t really forget it
Decay passive process decay to memory as rust to car memory rust memories are forgotten
spontaneously with the passage of time
Aging more proactive interference explains aging memory effect?
Inhibition of neurons not same as inhibiting a thought
Different memories may involve same neurons
Dreaming may present interference retroactive interference
Eidetic (photographic) Memory
- Only in children (under 5% of all children) mostly girls, gone by puberty
- Only one case in adults in human records
- Tested by dot superimposable tests
- Doesn’t seem to be related to intelligence
- Can’t be learned but can be unlearned
Retrograde amnesia is extremely rare. May get memories back with time but not the moment right
before injury (never got learned); usually shows recovery
Anterograde amnesia is also not very common but happens more frequently than retrograde; unable to
learn anything new. Long-term memory loss. Korsakoff syndrome syndrome; military men.
Hippocampus & area around it in the temporal lobe is critically important to memory. Involved in
memory formation, size of pea.
Epileptic seizures usually originate from the temporal lobe; theory: if lesioned, will improve condition.
H.M. came, had seizures originated in both temporal lobes, so doctors lesioned both sides. 1953. Unable
to learn anything new. Cancelled magazine subscriptions sign of suicide contemplation. Galvanic skin
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