PSYC 207 Chapter Notes -Episodic Memory, Daniel Schacter, Childhood Amnesia
Document Summary
Suffered from stroke, therefore underwent bilateral medial-temporal lobe resection to stop. Exhibits severe explicit-memory defects but competent at some kinds of implicit learning. Milner: mirror task, hm improves but have no explicit memory in completing. Lesions in right ventral frontal cortex ->medial temporal lobes. Asymmetrical retrograde amnesia (episodic memory lost, semantic memory spared) Temporal lobe: different structures within temporal lobes = different kinds of memory. More tissue damage=greater impairments in learning & memory. Not possible to demonstrate isolated localization of memory. Varieties of amnesia: infantile amnesia, fugue state, transient global amnesia, anterograde & retrograde, time-dependent retrograde amnesia. How are old memories preserved and recent ones lost: consolidation theory, multiple-trace theory, reconsolidation theory. *suggest that either storage, type of memory, or # times memory used = contributes to temporal gradient of retrograde amnesia. Study hm, new approach to neural basis of memory: implicit memories, explicit memories, emotional memories.
