Limited duration - from 2 to 30 seconds, can be prolonged with maintenance rehearsal.
Limited capacity - widely accepted, is that working memory can hold on average seven (7) plus or minus two concepts at a time varying with each person (George Miller). A memory span test
can show the negative effect of interference and the positive effect of chunking on short-term memory.
Functions of short-term memory:
1.Attending - (selective attention) - to selectively attend to information that is relevant & disregard everything else.
2.Rehearsing (2 types)
Maintenance rehearsal - refers to simply repeating or rehearsing the information rather than forming any new associations. Maintenance rehearsal is not very effective.
Elaborative rehearsal - deliberate effort to form new associations.