How Does The Human Brain Memorize Sound
CNRS (Délégation Paris Michel-Ange) (2010, June 1).
How does the human brain memorize a sound?. ScienceDaily. Retrieved June 1, 2010
The above story is reprinted (with editorial adaptations by ScienceDaily staff) from materials provided by CNRS (Délégation Paris Michel-Ange), via AlphaGalileo.
Sound repetition allows us to memorize complex sounds in a very quick, effective and durable way. This form of auditory learning, is believed to occur in daily life to help us identify and memorize sound patterns; it allows, for example, immediate recognition of sounds which become familiar through experience, such as the voice of relatives.
Little is known about our ability to memorize complex sounds.
Scientists discovered that our ear is remarkably effective in detecting noise repetitions. Listeners nearly
always recognized the noise pattern that had been played several times; two listenings were enough for those
with a trained ear, and only about ten for less experienced ears. Sound repetition therefore induces both
extremely rapid and effective learning, which occurs implicitly (it is not supervised). In addition, this
memory for noise can last several weeks. A fortnight after the first experiment, volunteers identified the
noise pattern again, at first attempt.
The scientists have demonstrated the existence of a form of fast, solid and long-lasting auditory learning.
Their experimental protocol has proven to be a relevant and simple method that could make it possible to study
auditory memory in both humans and animals. These results imply that a mechanism for rapid auditory plasticity
-- that is, a mechanism involved in an auditory neuron's ability to adapt its response to a given sound
stimulant -- plays a very effective role in the learning of sounds.
This process is likely to be essential to identify and memorize recurrent sound patterns in our acoustic
environment, such as the voice of relatives. It has all the characteristics considered necessary for human
beings to learn to associate a sound with what produces it. The same mechanism may also be involved in
relearning, which is often inevitable when hearing suddenly changes.
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aid our memory. Songs help you memorize the information and since print was invented we've
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year 1045 AD.
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