Definition: Short-term memory involves the things that we are thinking about and aware of at the current moment. Just how "short" is short-term memory? In most cases, information that is kept in short-term memory can be stored for approximately 20 to 30 seconds. However, this time period can be even shorter if the individual is distracted or if rehearsal and maintenance of the information is prevented. According to memory experts, we can store approximately four chunks or pieces of information in short-term memory.
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