Memory Flashcards
What is coding?
The format in which memory is stored into memory stores
What is capacity?
The amount of info that can be held in a memory store
What is duration?
The length of time info can be held in memory
What is the STM
Limited capacity memory store
What is capacity of STM
Capacity of 7 +/- 2 items
How is info encoded into the STM
Acoustically
What is the duration of STM
Duration 18-30 seconds
What is LTM
Permanent memory store
How is info encoded into the LTM
Semantically
What is the capacity of LTM
Potentially unlimited
What is the duration of LTM
Up to a lifetime
What did Baddeley (1966) find
Recalling items of a list is harder when words are acoustically similar for STM
Recalling items of a list is harder when words are semantically similar for LTM
What did Jacobs (1887) find?
for STM
Mean span for digits was 9.3
Mean span for letters was 7.3
What is chunking?
Grouping sets of digits or letters into units or chunks to aid recall.
What did Miller (1956) observe?
many things in everyday life come in 7s.
E.g days of the week.