Development
Age-related increases in activation within the neural structures responsible for echoic memory have been observed showing that with age comes increased proficiency in the processing auditory sensory information.
Findings of a (MMN) study, also suggest that the duration of auditory sensory memory increases with age, significantly between the ages of two and six years old from 500-5000ms. Children 2 years of age exhibited an MMN response in ISI between 500ms and 1000ms. Children 3 years old have a MMN response from 1 to 2 seconds, 4 year olds over 2 seconds, and 6 year old children from 3 to 5 seconds. These developmental and cognitive changes and that occur at a young age, and extends into adulthood until eventually decreasing again at old age.
Researchers have found shortened echoic memory duration in former late talkers (LT’s), children with Precordial catch syndrome (PCS), and oral clefts, with information decaying before 2000 ms. However this reduced echoic memory is not predictive for language difficulties in adulthood.
In a study, it was found that when words were presented to both younger subjects and adult subjects, that the younger subjects out perform the adult subject as the rate in which the words are presented is increased
Read more about this topic: Echoic Memory
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