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Lecture 10

HKIN 215 Lecture Notes - Lecture 10: Sketchpad, Working Memory, Motor Skill

3 Pages
79 Views
Fall 2017

Department
Human Kinetics
Course Code
HKIN 215
Professor
Dr. Melanie Lam
Lecture
10

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Ch. 10
Memory Systems
- Ability to encode and retrieve information
Two component memory model
- Memory composed of two systems:
o Working memory (sometimes short term memory)
Info stored for short periods of time
o Long-term memory
WM: neurological sketchpad
- Holding space where info can be accessed for immediate processing
- Limited capacity
- Subsystems hold different kinds of information: central executive, phonological loop, visuospatial
sketchpad
Central executive
- Coordinates operations of working memory
- Doesn’t store information, attends to info deciding what needs to be remembered, and sends to
appropriate system
Phonological loop
- Spoken and written material
- Holds it in speech-based form
- Two components: articulatory control process (minds voice), phonological store (minds ear)
Visuospatial sketchpad
- Stores what things look like (size, shape, texture), spatial info, movement info
- Constantly changing why it is in working memory
Working memory
- Two characteristics
o Duration how long it’s held
Has limited duration if rehearsing is prevented
Error increases with retention interval
20-30 seconds
o Capacity how much is held
Miller’s law
Average number of items between 5-9
“Chunking” information can increase capacity easier to process/store
Limits for movements difficulty remembering beyond 8 movements
Similar to miller’s law
Experts may have long-term WM
- More resistant to interference
- Differentiates experts from novices

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Description
Ch. 10 Memory Systems Ability to encode and retrieve information Two component memory model Memory composed of two systems: o Working memory (sometimes short term memory) Info stored for short periods of time o Longterm memory WM: neurological sketchpad Holding space where info can be accessed for immediate processing Limited capacity Subsystems hold different kinds of information: central executive, phonological loop, visuospatial sketchpad Central executive Coordinates operations of working memory Doesnt store information, attends to info deciding what needs to be remembered, and sends to appropriate system Phonological loop Spoken and written material Holds it in speechbased form Two components: articulatory control process (minds voice), phonological store (minds ear) Visuospatial sketchpad Stores what things look like (size, shape, texture), spatial info, movement info Constantly changing why it is in working memory Working memory Two characteristics o Duration how long its held Has limited duration if rehearsing is prevented Error increases with retention interval 2030 seconds o Capacity how much is held Millers law Average number of items between 59 Chunking information can increase capacity easier to processstore Limits for movements difficulty remembering beyond 8 movements Similar to millers law Experts may have longterm WM More resistant to interference Differentiates experts from novices
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