Memory - PowerPoint PPT Presentation

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Memory

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Presentation Transcript

  1. Memory

  2. Overview • How are memories important? • How do memory systems work? • How can you improve your memory?

  3. Memory as Information Processing • Encoding • Storage • Retrieval

  4. Three-Store Model (Atkinson & Shiffrin) Sensory Register Response Short-Term Store Long-Term Store

  5. Sensory Memory • iconic – visual, about ¼ sec. • echoic – auditory, 1-2 sec • attention needed for further processing

  6. Short-Term Memory • Visual, acoustic, or kinesthetic • Chunking • Rehearsal • Duration of about 20 sec without rehearsal

  7. Working Memory • Modern version of short-term memory • Emphasizes processing while storing • Active part of long-term memory

  8. How do memories become long-term? • Hippocampus • Long-term potentiation (LTP)

  9. Long-Term Memory • Meaning-based • Very high capacity • Long duration

  10. Types of Long-Term Memory • Declarative • Semantic • Episodic • Procedural • Implicit • Priming effects • Deja vu

  11. Construction in Memory • Misinformation effect • Source amnesia • Effects of expectation and bias • Repressed Memory

  12. Improving Your Memory • mnemonics • encoding specificity • avoiding interference • proactive • retroactive • distributed practice/spacing • state-dependent learning