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Unformatted text preview: acts or events must pass before being permanently stored in memory. If it is damaged, no new informa<on can enter memory ‐ although older informa<on which has already passed through buﬀer may be safe. • Reconsolida<on 5 2/25/09 Retrograde amnesia oken shows a gradient: memory for older events (1950’s) is befer than memory for newer events (1980’s) Public Events Recall Amnesic Control Famous Faces Recall Percent Correct 80 Decade 50 Percent Correct 80 Decade 40 Amnesics worse than controls Damage to hpc = Memory that was s<ll in hpc “buﬀer”got lost before it could be consolidated into permanent memory elsewhere in the brain Rey‐Osterrieth Figure 6 2/25/09 H.M. & mul<ple memory systems • Explicit memory: have conscious recall for – Medial temporal lobe structures (hpc, rhinal cortex, diencephalon (MD thalamus) – Impaired explicit = amnesia • Implicit memory: not conscious/ diﬃcult to explain how learned (e.g. bike riding, s<ck shik, shoelaces) – Dependent on many diﬀerent brain structures Diﬀerent types of learning & memory rely on di...
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- Winter '09