Human working memory can typically store between 5 and 9 items (usually 7) at one time. These items called short term memory.
In experiments with simple stimuli, working memory had a fixed capacity (equivalent to approximately 3 or 4 pieces of information), regardless of how long participants had to take to code these items. (9).
New information in working memory is temporary. Encoded in long-term memory, decayed, or replaced. Information in working memory has a short duration of about 10-15 seconds unless actively attended or rehearsed
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