Research on features of sound in humans done in 1999 by Gomez found out that during the early childhood, the sound is held for a shorter time contrary to older children and adults; this shows differences in the sensory memory system’s functioning. Since working memory needs keen focus and attention, younger children have a lower short-term memory capacity than older children and adults. Long-term memory tends to be lower in smaller children but increases its ability to a longer time of up to a lifetime when one grows ( Lally and Valentine-French 128).
A study by Atkinson and Shiffrin in 1968 established that memory comprises connected stores, which include sensory, short-term, and long-term memory. Information passes through the three stores sequentially. They deduced that once sensory organs perceive data, it is registered in the sensory memory and recorded once given keen attention. The information is then recorded in the long-term memory if rehearsed more often, but the stored details get lost from the main memory without repetition.