Long term memory is the storage of information and data that a person can retrieve weeks, months and years later. Usually, long term memory is from subconscious and a person is not aware of retrieving it. However, when the need arises, the memory can become a part of working memory. It is important to remember that some of the information from long term memory is easy to recall, while others may not be that easy.
Typically, information from short term memory is transferred to long term memory through a series of processes, including associations and rehearsals. While short term memory lasts just for a few moments, long term memory lasts for days, weeks or even years together. Nonetheless, it is possible that some information from long term memory can be forgotten, especially if the information is not used at all.
In order to understand the examples of long term memory, it is necessary to understand the sub-types of this memory. Long term memory is basically divided into procedural, episodic and semantic memory. How is it that a person never forgets how to ride a bicycle or swim? This is because of procedural long term memory. As a person keeps riding a bicycle, the information transitions from short term memory to long term memory and stays there. When required, the person can dredge up long term memory and can once again ride a bicycle or swim even he/she attempts it decades later. Basically, procedural long term memory helps a person to remember the "how to do" things. This type of memory serves information unconsciously and that is why even without thinking a person can brush teeth, take a bath, drive a car or cook a meal.
Then there is episodic long term memory. This type of memory allows a person to remember certain events or episodes in their lives. That is why it is possible to see something in your surrounding and immediately recall an incident that took place while you were child or what you ate for dinner the previous night. Episodic memory allows you to not only to recall events that occurred in the past, it also allows you recall all information associated with the events.
Lastly, semantic long term memory allows the brain to store general information as well as facts. This memory allows a person to remember words, their meanings, use logic to solve problems, and understand concepts, principles and rules. This type of memory is a learned memory and a person consciously rakes up memories to remember things that he/she had learned previously and then associate it with the current information and come to a logical conclusion.
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