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Process of Speaking and Listening Is Parallel In Brain

Sep, 2021

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Neuroscientists after research for many years successfully find the pathway to the brain for the transport of audio and sound.

 

The theory explained the brain processing acoustic and linguistic information was parallel. The temporal lobe has an auditory cortex which is in the brain region. It receives the electrical signals which are then converted to language sounds. For many years scientists thought that the working and responding of our brain was like an assembly line in a factory. The process was thought to be initiated with the primary auditory cortex processing simple acoustic information like sound frequencies. This led to the adjacent region extracting important features of speech that transformed sound into words. Still, a detailed study is challenging due to the deep located auditory cortex.

 

The experiment was carried out with electric currents stimulated to the participant’s primary auditory cortex which was for mapping clinical language. It was thought that if speech processing followed a pathway according to the traditional model, the stimuli would likely distort the patient’s perception of speech. But the participants could still hear clearly and pronounce them although they had noise hallucinations due to the stimuli. But participants reported blur sounds after stimulating STG. According to Chang, neuroscientist, and neurosurgeon, this study helped to first time understand the surface of the brain and sound to word transformation simultaneously. A wire inserted in the area could help to understand signals at limited spots.

 

After studying with his team for seven years on a case study of nine participants who had brain surgeries, removed tumors. The participants volunteered by proving their recordings to the team for their further studies related to the auditory process and speech.

 

Chang also reported that a patient could feel it like syllables being swapped in words. A detailed study about the parallel nature of speech processing can help doctors find treatment for dyslexia and treat children with difficulty in hearing and speaking.

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