PSYC 3265 Study Guide - Final Guide: Animal Testing On Rodents, Neocortex, Entorhinal Cortex
17 Dec 2016
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Hippocampus well-suited for formation, storage and retrieval of memories! b/c it represents a closed circuit. Info keeps flowing, processed, elaborated on over and over. Intricate sub-connections w/in hippocampus to allow memories to be re-activated at retrieval. Ca1, ca2, ca3, ca4 subfields *distinguished by cellular structure and connectivity. Ca1 particularly vulnerable to damage from hypoxia (loss of o2 to the brain, can be from cardiac arrest) Connects to entorhinal cortex hippocampus and back *closed circuit. Entorhinal neurons (major input to hippocampus) dendate gyrus ca3 ca1 subiculum and back around = entorhinal cortex *perferant pathways. Another pathway that exits the hippocampus via the fornix (another major output from the hippocampus that leads to other brain areas/structures. Bundle of axon tracts that leave hippocampus and send info to the thalamus, also info from mammillary bodies hypothalamus pfc) Schaeffer collaterals: auto-associative, allows for info to reverberate w/in the ca3 sub-fields pattern completion.
