Podcast
Questions and Answers
What is the semantic network model?
What is the semantic network model?
What does cognitive economy refer to?
What does cognitive economy refer to?
The efficiency of the brain in storing shared properties at the highest possible node only once.
What distinguishes the modified semantic network model?
What distinguishes the modified semantic network model?
It has no hierarchical structure and links are based on a person's experience.
What is spreading activation?
What is spreading activation?
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During a study, a participant misremembers snow in a photograph with Santa Claus. What phenomenon explains this?
During a study, a participant misremembers snow in a photograph with Santa Claus. What phenomenon explains this?
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Study Notes
Semantic Network Model
- Semantic network model is a hierarchical model for memory organization.
- Information is stored in a connected manner, with closely related concepts located physically closer than unrelated concepts.
Cognitive Economy
- Cognitive economy emphasizes brain efficiency by storing shared properties only at the highest relevant node.
- This approach minimizes redundancy in memory storage.
Modified Semantic Network Model
- Maintains the same link lengths: shorter links connect closely related concepts while longer links connect less-related concepts.
- Lacks a strict hierarchical structure; instead, it is shaped by individual experience.
Spreading Activation
- Spreading activation occurs when one item in working memory activates related memories.
- This process can lead to the recall of concepts that are semantically linked.
Example of Spreading Activation
- A participant misremembers a photograph featuring Santa Claus by asserting it had snow when it did not.
- This misremembering illustrates spreading activation, as the Santa Claus node activates related concepts like Christmas and snow.
- Spreading activation can lead to false memories based on associations with original stimuli.
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Description
Explore the concepts of semantic networks and spreading activation through interactive flashcards. This quiz covers key definitions and principles related to how information is organized in the brain, focusing on the hierarchical models and efficiency of cognitive processes.
