How Many Pieces of Information Can Short Term Memory Hold
Many psychology experiments have shown that our curt-term memory can hold only a limited number of separate items. The average is almost 7 items, plus or minus ii, depending on the individual. Yous can easily confirm this by reading someone a series of words that accept no connection with 1 some other, then asking this person to repeat them. Kickoff with i word, and so 2 different words, then three different words, and so on. When you lot get up to about 7 words, chances are the person volition get-go making mistakes!
The following is another easy test that demonstrates the volatility of short-term retention. Read a phone number to someone out loud. Wait 10 seconds; then inquire them to echo it. They should be able to do so without any problem. At present read them another telephone number, but this time ask them to count down from 100 by threes (100, 97, 94, 91, etc.) for 10 seconds, then repeat the phone number. By the fourth dimension they finish counting down, they will probably have forgotten information technology.
The simple distraction of having to perform a few subtractions in their head prevented them from mentally repeating the telephone number to keep refreshing their short-term memory. Brusk-term retention, as well known as �working memory�, cannot retain information for more than a few seconds. To call back something for any longer, y'all must therefore repeat it to yourself several times, long enough to modify your long-term memory.
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Source: https://thebrain.mcgill.ca/flash/capsules/experience_jaune03.html
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