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HFE - Lecture 8
Cognition Part 2
9
Health Care
Undergraduate 4
02/27/2012

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Cards

Term
Why Memory?
Definition
• Foundation of cognition
• Limited
• HF minimize error
Term
Sensory Memory
Definition
• Stores all stimulus that register on the senses
• Large capacity
• Lasts up to 3 sec
• Two types:
o Iconic
o Echoic
Term
Working Memory - Characteristics
Definition
• Transient (20s without rehearsal)
• Limited to small amount information
• Types information
o Verbal
o Spatial
Term
Baddeley’s Working Memory (1986)
Definition
• Central Executive
• Visuospatial sketch pad
o Visual imagery
o Spatial information
• Phonological loop
o Verbal information
Term
Chunking
Definition
meaningful unit of information. Takes advantage of pre-existing knowledge
Term
Why we forget
Definition
• Lack of encoding
• Decay
o Memory traces erode over time
• Memories interfere with others
Term
Memory - Bugs
Definition
• Mainly in informational retrieval
o Tip-of-tounge phenomenon
o Cues
o Reconstructing memories
o Forgetting: recall, recognition, relearning
Term
Memory - Implications for Design
Definition
• Promote frequency
• Read back and reproduction
• Standardize
• Memory Aids
• Information design
• Create appropriate organization
Term
Improving Memory
Definition
1) Elaboration - Link stimulus to other information at the time of encoding
2) Visual Imaery - Create visual image to represent words to be remebered (Dual - Coding Theory)
3) Self-referent encoding - make information personally meaninful
4) Verbal mnemonics
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