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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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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