Short Term Memory

Short-term memory refers to memories which last for a few minutes. Unlike sensory memory, which is stored in the exact form it was experienced, short-term memory has received some processing; thus, "A" is stored not as a visual stimulus, but as an abstract concept of the letter "A". Short-term memory is of limited capacity, usually 5-9 items ("7-plus-or-minus-two"). Beyond this capacity, new information can "bump" out other items from short-term memory. This is one form of forgetting. Objects in short-term memory can be of indefinite complexity: thus short-term memory can hold several numbers, or several words, or several complex concepts simultaneously. Thus, while an individual may only be able to remember seven random digits, it may be possible to remember more digits if they are "chunked" into meaningful objects: thus, "1776-2001-1941" represents twelve separate digits -- well beyond most people's capacity -- but only three easily-remembered chunks.     

Items can be maintained indefinitely in short-term memory by rehearsal: e.g. by repeating the information over and over again. An example would be a seven-digit phone number, which is maintained in short-term memory by repetition until the number is dialed, and then fades from short-term memory once the conversation starts. Repetition may also increase the probability that items in short-term memory will enter permanent storage in long-term memory.

Intermediate-term or working memory is sometimes considered a synonym for short-term memory. However, memory researchers often consider this a specialized term referring for information about the current task. Thus, even though a specific phone number may occupy short-term memory, working memory contains the information that lets you remember that you are in the process of phoning the gas company to complain about a recent billing error.

Repeat to Remember

The human brain can only hold about seven pieces of information for less than 30 seconds! Which means, your brain can only handle a 7-digit phone number. If you want to extend the 30 seconds to a few minutes or even an hour or two, you will need to consistently re-expose yourself to the information. Memories are so volatile that you have to repeat to remember. But there are certain people keep remembering what they want to do. When they talk or said even one word they already forgotten what they want to do. 

Nowadays not only old-folks have a problem with their memory, "called as  amnesia" but  also an adult and teenagers.A certain people who cares about this problem they are take an action by get a medicine for short term memory and a treatment by the doctor.     

to keep our memory in good condition, it is better for us give some rest for our brain and not force our brain when we can't. this aspect will lead to the short term memory problem.