Memory Flashcards
What is coding?
The format in which info is stored
Who did research on coding?
Baddeley (1966)
He gave different lists of words to 4 groups of participants to remember
What is capacity?
The amount of time info can be held for
What is the duration?
Length of time info can be held
How is STM coded?
Acoustically
How is LTM coded?
Semantically
What is the capacity of the STM?
7+/-2 seconds
What is the capacity of the LTM?
Unlimited
What are some characteristics of the LTM?
- potentially permanent memory store
- unlimited capacity
-can last up to a lifetime
-info is coded semantically
What are some characteristics of STM?
- limited capacity
- info coded acoustically
- lasts about 18-30 secs unless rehearsed
- if we rehearse it long enough, it’ll pass to LTM
What is maintenance rehearsal?
when we repeat material to ourselves over and over again
Who developed the MSMoM?
Atkinson and Shiffin
What is the MSMoM?
- Describes how info flows through the memory system
- Suggests memory is made up of 3 stores, linked by processing
- It also describes how info is remembered and forgotten
MSMoM
What is the sensory register?
- The environmental stimulus will pass through into the sensory register
- It has high capacity, a duration less than a second and very little info that enters goes any further
What are the 2 stores within the sensory register?
Iconic - coded visually
Echoic - coded acoustically
Who came up with the idea of there being 3 LTM stores?
Tulving (1985) realised the view of LTM was too simplistic and flexible
What are the 3 LTM stores?
Episodic memory
Semantic memory
Procedural memory
What is episodic memory?
- memories of events from our lives
- memories from this store have to be retrieved consciously and with effort
- Memories are time stamped
Eg what you ate for breakfast this morning
What is semantic memory?
- Our knowledge of the world (facts)
- Memories aren’t time-stamped
- Usually need to recall these memories deliberately
Eg knowing the taste of an orange
What is procedural memory?
- Actions, skills, how we do things
- Can be recalled without conscious awareness or a great deal of effort
Eg driving a car, changing gear without thinking about it
Who was the working memory model proposed by?
Baddeley and Hitch (1974)