BIO SCI 38 Lecture Notes - Lecture 5: Anterograde Amnesia, Long-Term Depression, Retrograde Amnesia
1 Sep 2016
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Document Summary
Dual trace- short term vs long term have different fades over time. Neurobiologists experience brain systems synapses molecules behavior. Ribot golden age of memory- many of the basic ideas still occupy researchers today from that era. Temporal progression of loss of memory after brain disease or injury: recent memories personal habits/skills emotional memories. Ribot"s law- old memories are more resistant to disruption than new. Korsakoff alcohol syndrome- anterograde amnesia: cant make new memories. Due to storage failure or retrieval failure. Memories emerge in stages: after image is supported by short-lasting trace and then replaced by primary trace- eventually decays. Secondary memory: reservoir of enduring memory trace that can be recalled with appropriate retrieval cues. Trace strength vs. time graph: after image has super short trace, primary is a little longer then dies, secondary is longest. Habit and memory are distinct, habits develop and build more complex behaviors, habits free up resources for conscious actions.
