PSYC 2510 Lecture Notes - Explicit Memory, Semantic Network, Spreading Activation
3 Dec 2012
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Document Summary
Dual-coding theory-- memory is enhanced by forming semantic and visual codes. Sensory memory-- preserves info in raw form for fractions of a second. Info is forgotten or moves into short-term storage. Limited capacity store of unrehearsed info (~20 seconds) Rehearsal-- repeating the info verbally or mentally multiple times. Info is lost because of decay and interference. A temporary store in which info from stm is manipulated mentally. Some theorists question the distinction between stm and ltm. Clustering-- tendency to remember similar or related items in groups. Conceptual hierarchy-- classification system based on common properties among items. Specific memories correspond to particular patterns of activation in connectionist networks. We use cues to retrieve information from memory. Evidence of state- and mood-dependent effects on recall. Memories can be distorted following the presentation of inaccurate information. Jurors give eyewitness testimony a lot of weight in decisions. Many factors reduce the reliability of eyewitness identifications. Problems in encoding, storage, and retrieval result in forgetting.
