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Tuesday
Nov 18th
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Better Listening Ability Depends on Genetic Inheritance PDF Print E-mail
Written by Subhasis Chatterjee   

What can be the true definition of the communication skill in the present days? There can be may theories on that but the best specimen till now is the phone message that any individual listen in one ear while the person from the other end is talking from the other end is talking into another ear. But these entire path of communication is heavily influenced by your genes. This has come out in a recent study of the researchers of the National Institute on Deafness and Other Communication Disorders or the NIDCD, a distinguished component of the National Institute of Health. It has come to the knowledge in this regard, that the recent finding shall enable the group of eminent researchers for a better understanding of the broad and complex group of disorders that is known as the Auditory Processing Disorders or the APDs. It is to be noted, that this disease denotes to the very individuals though having normal ability of hearing undergo through a difficulty of making accurate sense of the sounds around them. 

From the discourses with the concerned researchers of the group it has bee learnt that the very term "auditory processing" refers to functions that are performed first and foremost by the brain so as to help the listener to take to mean sounds. In addition to this, it is this definite methodology of auditory processing that facilitates us with the aptitude to point to the definite direction or the very origin of the sound along with the timing and sequence of a sound, and whether a sound is a voice we need to listen to or background noise we should ignore. However the ignorance reigns so supreme that the majority of the people fail to understand that they possess this wonderful blessing of the nature. Furthermore this natural aptitude continue to play an imperative role in regard to the children as far as their language acquisition and learning abilities are concerned in spite of the fact that nothing fruitful has come to the surface for a better understanding of the relationship.   For a perfect determination of the notion whether the auditory processing skills are hereditary the researchers of the NIDCD went through a detailed study of identical and fraternal twins that had the participation of 194 same-sex pairs of twins consisting of 138 identical pairs and 56 fraternal pairs, of ages from 12 to 50. All received a DNA test for the confirmation of their identical or fraternal existence and also of a hearing test for a better understanding of their capability of normal hearing. Among all the five tests that were performed by the volunteers there was only one test that was unnaturally filtered out high-pitched sounds, which was inclined to complicate the consonants, while the other sped up the word.

The result was that in all except the filtered-words test, there was the presence of an imperative higher correlation between identical twins than fraternal twins with the precise indication that the differences in performance for those activities had a strong genetic component.

Speaking to the newsmen the Dr. James F. Battey, Jr., M.D. and the Director of the NIDCD said,   "Our auditory system doesn't end with our ears." "It also includes the part of our brain that helps us interpret the sounds we hear. This is the first study to show that people vary widely in their ability to process what they hear, and these differences are due largely to heredity."

 

 
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