Duration of short term Memory is:

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Duration of short term Memory is:

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2 seconds
20 seconds
1/2 second
30 seconds

Answer 1

The mental process you used to answer all of these questions is known as memory. It refers to the ability to retain information and reproducing it over a period of time when required to perform a cognitive task.

Memory is a process comprised of three stages. All information received by our senses goes through these stages:-

Encoding: It is the process of converting sensory information into a form that can be processed further by the memory systems.
Storage: In this second stage, received information from memory systems is stored so that it can be used at a later time also.
Retrieval: It refers to locating and bringing the stored material information to one’s awareness when required to complete a task.

Important PointsAmerican psychologists Richard Atkinson and Richard Shiffrin (1968) proposed the Atkinson-Shiffrin Model of memory which is very similar to the way computer handles the input and storage of data. This model involves various steps to store information.

The sensory register or memory:	This receives information from the various sensory receptors from the environment. Here, the information is held for a very brief period of time, perhaps a few seconds. The information passes from the sensory register to the short-term memory, only if attention is paid to it.
Short-term store or memory:	This is also known as working memory or primary memory. Here, the information is kept up to 30 seconds. It has a very limited capacity to store information. Several pieces of information can be combined into chunks and stored in a short-term store and later retrieved. It stores the sound of the speech, visual images, words, meaningful sentences. Since the storage is very small, most of the new incoming information displaces the previously stored information. Information that is rehearsed well then moves to the long-term memory and the information that is not rehearsed is lost.
Long-term store or memory:	The information is organized in different ways in long-term store for days, months, years, and maybe forever. Long-term memory has unlimited capacity to store information. Information is generally not forgotten from the long-term stores, and if any forgetting occurs, it is because the information has not been retrieved or organized properly. The information that is stored in the long-term store consists of meaningful words, sentences, ideas, and various experiences of our life.

Hence, the duration of short-term memory is 30 seconds.

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