Lesson 3: The Mechanics of Semantic Memory
00:00 In this session, we're diving deep into semantic memory—the component of long-term memory that stores knowledge about the world, concepts, and language. Unlike episodic memory, which is tied to specific events, semantic memory is the bedrock of your mental library.
02:15 Think of semantic memory as the "what" rather than the "where" or "when". When you recall that Paris is the capital of France, you are accessing semantic networks. These networks are structured hierarchically, allowing for rapid retrieval and association.
05:40 We will explore how these nodes of information are interconnected and how "spreading activation" helps us move from one concept to a related one effortlessly.
Lecture_Slides_M2L3.pdf
12.4 MB • PDF Document
Cognitive_Matrix_Worksheet.xlsx
2.1 MB • Spreadsheet
lightbulb Key Learning Points
- Definition of Semantic Memory vs Episodic Memory.
- The Hierarchical Network Model (Collins & Quillian).
- Prototypicality Effect in information retrieval.
- Neuroanatomical correlates of knowledge storage.