It is also known as primary or active memory.
Short-term memory is crucial in our daily lives.
That’s also whyshort-term memory losscan be frustrating and even debilitating.
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Just How ‘Short’ Is Short-Term Memory?
However, the information in short-term memory is also highly susceptible tointerference.
In other words, new memories sometimes crowd out the old ones.
Any new information that enters short-term memory will quicklydisplace old information.
Similar items in the environment can also interfere with short-term memories.
While many short-term memories are quickly forgotten, attending to this information allows it to continue the nextstagelong-term memory.
How Much Can Short-Term Memory Hold?
In addition to being brief, short-term memory also faces limitations in terms of capacity.
However, just how much information you might store in short-term memory can vary.
More recent research suggests that people can store approximately four chunks or pieces of information in short-term memory.
For example, imagine that you are trying to remember a phone number.
The other person rattles off the 10-digit phone number, and you make a quick mental note.
Moments later you realize that you have already forgotten the number.
Short-Term vs.
Working Memory
Some researchers argue thatworking memoryand short-term memory significantly overlap, and may even be the same thing.
While long-term memory has a seemingly unlimited capacity that lasts years, short-term memory is relatively brief and limited.
Short-term memory is limited in both capacity and duration.
The exact mechanisms for how this happens remain controversial and not well understood.
Factors such as time and interference can affect how information is encoded in memory.
The information-processing view of memory suggests that human memory works much like a computer.
Maintenance Rehearsal
Maintenance rehearsal (or rehearsal) can help move memories from short-term to long-term memory.
Maintenance rehearsal is a way to preserve information in long-term memory.
For example, you might use this approach when studying materials for an exam.
Chunking
Chunking is one memorization technique that can facilitate the transfer of information into long-term memory.
This approach involves organizing information into more easily learned groups, phrases, words, or numbers.
For example, it will take a large amount of effort to memorize the following number: 65,495,328,463.
However, it will be easier to remember if it is chunked into the following: 6549 532 8463.
Mnemonics
Easily rememberedmnemonicphrases, abbreviations, or rhymes can help move short-term memories into long-term storage.
Memory Consolidation
Memory consolidation is the process in which the brain converts short-term memories into long-term ones.
Rehearsing or recalling information over and over again creates structural changes in the brain that strengthen neural networks.
The repeated firing of twoneuronsmakes it more likely that they will repeat that firing again in the future.
If you feel like you’re constantly forgetting things, it can be irritating, frustrating, and frightening.
What Causes Short-Term Memory Loss?
There are many potential causes of short-term memory loss, and many of them are reversible.
How to Improve Your Short-Term Memory
Living a healthy lifestyle may help preserve and improve memory.
It’s also important tokeep your brain active.
Cowan N.What are the differences between long-term, short-term, and working memory?.Prog Brain Res.
1956;63(2):8197.
Atkinson RC, Shiffrin RM.The control processes of short-term memory.
Institute for Mathematical Studies in the Social Sciences, Stanford University.
Kelley P, Evans MDR, Kelley J.Making memories: Why time matters.Front Hum Neurosci.
2025;78(2):222-239. doi:10.1177/17470218241290909
Zlotnik G, Vansintjan A.Memory: An extended definition.Front Psychol.
2012;141(3):380-390. doi:10.1016/j.actpsy.2012.09.002
Mayo Clinic.Memory loss: When to seek help.
National Institute on Aging.Do memory problems always mean Alzheimer’s disease?.
National Institute on Aging.Memory problems, forgetfulness, and aging.