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This overview explores the complexities of long-term memory, delving into the distinctions between implicit and explicit memory types, namely procedural and semantic memory. We examine the reconstructive nature of memory, including the impact of eyewitness testimonies and the debate surrounding recovered versus false memories. Insights into memory models such as the Hierarchical Semantic Network and the Feature Comparison Model illustrate how we organize and retrieve general knowledge. The content emphasizes the crucial distinctions between episodic and semantic memory, providing a concise understanding of how we remember.
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Memory for General Knowledge http://www.salon.com/health/feature/1999/09/16/memory/cov_memory.gif
Implicit Memory http://www.scielo.br/img/fbpe/anp/v56n3a/1794f1.gif
Implicit Memory • Procedural
Implicit Memory • Priming • Semantic • Repetition • Propaganda effect
Semantic vs. Episodic Memory • Episodic Memory: • Memories for specific events that you yourself were involved in • Can be placed in a certain time or location • Semantic Memory: • General knowledge base http://abjectchaos.com/wp-content/uploads/2008/05/broken-arm.gif
Reconstructive Nature of Memory • Flashbulb Memories http://farm2.static.flickr.com/1134/1214806756_37b724f8c4_o.jpg
Reconstructive Nature of Memory • Eyewitness Memory • Loftus experiment 1: • Loftus experiment 2:
Reconstructive Nature of Memory • The Recovered/False Memory Debate
Memory for General KnowledgeSemantic Memory • Definitions of words • Verb tenses • Arithmetic facts • Historical facts • Scientific facts • Geography facts Sing sang was singing 2+2=4 mc2 = E What is the capital of Georgia?
Evidence for Semantic vs. Episodic Memory Type of information Temporal aspect Severity of context effects Amnesia patients
The Semantic Memory Models • Hierarchical Semantic Network Model • Cognitive economy Breathes air Mammal Live young Dog Four paws pointers Tail Bernese Mountain Dog Black, white, rust fur Node Exuberant
The Semantic Memory Models • Expansion of Hierarchical Model Depiction of spreading activation. Once the node for “bread” is excited, the activation travels to related nodes.
The Semantic Memory Models • Hierarchical Semantic Network Model • Problems with model • Hierarchy? Animal Mammal “A pig is a mammal.” “A pig is an animal.” Pig
Bird Robin Turkey The Semantic Memory Models • Hierarchical Semantic Network Model • Problems with model • Typicality effect “A robin is a bird.” “A turkey is a bird.”
The Semantic Memory Models • Feature Comparison Model • Features • Defining • Characteristic
The Semantic Memory Models • Connectionists Model Individual Neurons http://bittenandbound.com/wp-content/uploads/2007/11/brad_pitt.jpg http://www.aboutfilm.com/features/pearce/pearce-memento.jpg
Schemata • Scripts