PSYC 4600 Lecture Notes - Lecture 15: Compact Cassette, Temporal Lobe, Memory Consolidation

• School: University of Guelph
• Department: Psychology
• Course: PSYC 4600
• Professor: Maria Giammarco

Document Summary

The longer a memory is consolidated the stronger it will be and the less susceptible to loss it will be. Ri(cid:271)ot"s la(cid:449: there is a time gradient in memory loss, remote memories are more likely to be spared by disease and injury. I(cid:374) alzhei(cid:373)er"s o(cid:374)e of the first areas da(cid:373)aged is the mtl. More re(cid:272)e(cid:374)t (cid:373)e(cid:373)ories ha(cid:448)e(cid:374)"t go(cid:374)e through as (cid:373)u(cid:272)h (cid:272)o(cid:374)solidatio(cid:374) Hippocampus is believed to play a major role in early consolidation. Note: systems consolidation (years, i. e. 15 years) different from synaptic consolidation (hours: standard model of systems consolidation. Over time episodic memories are no longer maintained/retrieved form hippocampus. This is (cid:449)h(cid:455) da(cid:373)age to hippo(cid:272)a(cid:373)pus does(cid:374)"t destro(cid:455) older (cid:373)e(cid:373)ories. They are moved to the neocortical areas. Hippocampus still seen active when recalling long-term memories. It could take 20-40 years for hippocampus to become independent: syste(cid:373) (cid:272)o(cid:374)solidatio(cid:374) does(cid:374)"t take that lo(cid:374)g (cid:894)15 (cid:455)ears(cid:895, alternate: multiple trace model (theory) of systems consolidation. Agrees that hippocampus is responsible for early coding.