coding capacity and duration

how does the short term memory code

Acoustically

how does the long term memory code

semantically

what 4 groups did Baddeley test and what were the findings

words that sound similar

words with similar meanings

words that sound different

words with different meanings

what were the findings

STM was worst with similar sounding words

LTM was worst with words that had similar meanings

what is a strength of research into coding

clear difference between LTM and STM memory stores and lead to the creation of the MSM

what is a limitation of research into coding

artificial stimuli were used therefore it has limited application

what is the capacity of the STM

7 +/- 2

what is the capacity of the LTM

unlimited

what is a strength of research into capacity

the study is highly replicable (and has been replicated) and therefore has high validity

what is a limitation of research into capacity

miller overestimated the capacity of the STM its is more like 4 +/- 1

what is the duration of the STM

18 secs

what is the duration of the LTM

a lifetime

what was the procedure for research into duration of STM

each ppt was given a consonant syllable and a 3 digit number and then counted backwards and stopped at regular intervals to recall the numbers and letters

what is a limitation of research into duration of STM

artificial stimulus - lacks external validity

how does the sensory store code and what is its duration and capacity

multi modally (visually and sound)

almost nothing

large capacity