Questions and Answers
Define spreading activation.
The process through which activity in one node in a network flows outward to other nodes through associative links.
Each node represents a memory __________.
association
Thinking about one node _________ a related node.
activates
The closer the association the closer the node and _________ the activation.
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Connections laid down in ________ memory establish retrieval paths in LTM.
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At the neuronal level memories (nodes) are represented by ________ networks.
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What is the lexicon decision task?
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LDT: Some pairings of words are __________ with each other.
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Response time is longest when there is a ________.
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Response time is fastest when the pairings are ____________.
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Study Notes
Spreading Activation
- Spreading activation is the mechanism where activity in one memory node spreads to connected nodes via associative links.
Memory Nodes
- Each node in a network represents an association related to a specific memory.
Activation of Nodes
- Activating one memory node can lead to the activation of related nodes, demonstrating interconnectedness within memory networks.
Association Strength
- Connections between nodes dictate activation strength; closer associations imply stronger activation, requiring shorter traversal distance between nodes.
Memory Retrieval Pathways
- Retrieval paths in long-term memory (LTM) are established through connections formed during working memory processing.
Neuronal Representation
- Memories or nodes are represented by neural networks at the neuronal level, reflecting patterns of neuronal firing in response.
Lexicon Decision Task (LDT)
- The lexicon decision task measures how quickly individuals classify stimuli as words or nonwords, focusing on reaction times during word pairings.
Word Associations in LDT
- Certain word pairings exhibit strong associations, such as "bread" and "butter," which aid in faster classification.
Impact of Non-Words
- Response time increases significantly when participants encounter non-words, highlighting difficulty in classification.
Meaningful Word Pairings
- The fastest response times occur when word pairings are meaningful, although similar speeds are observed when both words are real and recognized.
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Description
Test your knowledge on the concept of spreading activation and memory nodes. This quiz covers key aspects such as activation strength, memory retrieval pathways, and neuronal representation, providing insights into how our memory networks operate.
