Respuesta :
She can remember about seven items, with the number ranging from five to nine. The function of short term memory is to store bursts of information for a short duration of time. A phone number has seven digits, and that is a perfect example of the use of short term memory. People given a phone number can usually store it and recall it several minutes later, but in a week, they will forget.
Short-term memory or active memory is the information we are presently aware of or thinking about. Its duration is very brief -- last only for 20 seconds. It is also limited – it can hold only seven plus or minus 2 items. If Diamond shows an average capacity of short-term storage in her memory test, she should remember about 7 numbers before she starts making errors.