Vebal representation of knowledge

Vebal representation of knowledge

1. Associanist approach

   • organizational variable
   • There are functional relationships between psychological phenomena
   • We associate and categorize objects in our environment
   • example coper, steel, emerald, granite, marble, slate

2. Semantic organization of knowledge

   • Set-Theoretical Model Semantic concepts are represented by collections of information (or sets)

3. Semantic organization

   • Semantic feature comparison model
     • Concepts are represented in memory as a set of semantic features

4. Semantic network model

   • Knowledge exists in memory as independent units connected in a network
     • Collins and Quillian’s (1969) semantic network

5. Spreading activation model

   • If concepts are stored in memory in terms of their relationships to one another, you can link to other concepts via these networks

6. Propositional Networks

   • Complex ideas represented as simple relationships
   • Proposition = smallest unit of knowledge that can stand as a separate assertion
   • Relationships between objects are represented by symbols and not by mental images
   • Human Associative Memory (HAM)
     • Understanding of a specific fact may be contingent on the relationship to other facts
     • Adaptive Control of Thought (ACT)

7. Connectionism

   • A theory of mind that posits a large set of simple units connected in a parallel distributed network (PDP)
   • Units excite or inhibit each other throughout the system
   • Knowledge is distributed throughout the system within the connections between units (in terms of strength)