PS102 Lecture Notes - Lecture 10: Basal Ganglia, Interference Theory, Episodic Memory
Document Summary
Flashbulb memories: vivid, clear recollections, like a snapshot" in time, not as accurate as they were presumed to be. Interference theory: proactive interference- past material interferes with recall of newer material, retroactive interference- new information interferes with ability to recall older information. Forgetting is a decrease in the ability to retrieve a previously formed memory (memory fades) Ebbinghaus- we forget due to decay but there is more to it: sharp drops around each half day (12h)- retention interval of syllabus, years since completion of spanish course drops significantly after 2 years (decay of. Isotope (our memory chemically fades: encoding failure, lack of attention, lack of deep processing. Failure to encode: details that are not important to us. Memory trace becomes eroded-birth of new neurons in the hippocampus leads to decay of memories in that brain region. Interference: figure 8. 10: retroactive and proactive interference. Consolidation of new memories-breakdown of acetylcholine in the synapse leads to memory loss.
