BCS 111 Lecture Notes - Lecture 8: Recognition Memory, Episodic Memory, Limbic System
30 Jul 2018
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Document Summary
Semantic memory not tied to specific time or place. Episodic memory tied to specific personally experienced events. Then lesioned rat cortices in an attempt to find out where those behavioral memories were stored. It is not possible to demonstrate the isolated localization of a memory trace anywhere within the nervous system. Limited regions may be essential for learning or retention of a particular activity, but within such regions the parts are functionally equivalent. Formed of multiple layers of nodes / neurons. Nodes/neurons in one level pass info onto nodes/neurons in the next level. Patterns of activation in a level thus can cause a specific pattern of activation in the next group of nodes/neurons. 1953, doctors try experimental surgery to relieve seizures. Remove parts of hippocampus & temporal lobe (function then unknown) Post surgery, h. m. could no longer form new memories. All suffered damage to hippocampus & medial temporal lobe. Hippocampus is part of the limbic system.
