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Question
Compare and contrast.
STM - LTM
Solution
According to the Information Processing Model of Memory, the main stages of memory are Sensory memory, Short Term Memory (STM), and Long Term Memory (LTM).
Information enters the STM from the sensory information store by selective attention. It is maintained thereby maintenance rehearsal and continued attention. STM has a storage capacity of 7 +/− 2 (5 − 9) items. It can hold information for 15-30 seconds. STM is also called primary memory or working memory. Material from the STM is lost due to decay, interference, etc.
Information enters the LTM from the STM through rehearsal. It is maintained thereby elaborative rehearsal which makes it meaningful and associates it with existing information. LTM is an organized system and a storehouse of encoded experiences. It has an almost unlimited capacity and is almost permanent. Information can be lost through interference, trace decay, and retrieval failure. Information from LTM is brought back to the working memory during retrieval.
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