Mother Tongue in the brain  ?

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Among the subjects I teach, related to the human brain, starting from Switching Theory and logic design which leads to Computer Organisation which inturn leads to its case study Microprocessors and interfacing ultimately leading to Hardware Software Co-Design via Embedded systems.  While teaching these subjects the question is always asked " Why do we need Assembly language when those  close to natural languages are available like 'C', BASIC,COBOL and so on". In order to answer  this question I  ask the student what their mother tongue is?. Their reply is usually any of the natural human languages ,like,Hindi,English,Telugu and so on. The next question I have is "Why is that so" to which the answer always is that they think in that language. Next question is where do you think?- In the brain ofcourse. It is then that I ask "Say for example, I am able to look into your brain would I find your mother tongue there"?. " Will the brain of another person whose mother tongue is different have a different brain internal structure to suit the persons mother tongue?". " for example a person whose mother tongue is English will this persons brain have english alphabets and an english dictionary?".The answer for this question is usually a blank others fool around with some funny answers. 

     I am not a Biologist,neurologist,or any variety of expert qualified to comment on the brain and all my attempts here are as a THINKER from a philosophical point.The structure of the brain is the same in all humans, that is almost identical.  All that happens is a biochemical reaction based on inputs recieved by it from the various sensory devices like the ear,nose, mouth and so on. Based on these the biochemical reactions take place and these reactions are associated by the brain to cause responses. For example if the nose perceives the smell of fish frying then a chemical reaction takes place in the brain which woul be the same reaction in any person. This reaction would trigger an associative reaction which depends on the training given to the brain. This associated chemical response triggers anothers response which will trigger ations which could be a chained reaction causing other responses actuate a motor action.. Now if the preson whose brain perceived this was a fish eater then his taste buds would be activated causing the mouth to water. For a person who does not like the smell of fish frying, the association would be with the part of brain which would make the hands close the nostrils and put a frown on the face and may be utter some air vibratations through the vocalchords outputted through the mouth. So there is nothing like mother tongue literally mining that the mother tongue would be identified by looking/analysing the brain. Yes there will be regions depicting the patterns which are made when information is received from  afferent neurons and the action to be done depends on the pattern created which will send the response expected to the efferent neurons.  In one sentence information from sensory organs are received throughafferent neurons and the central processing generates a pattern if it is new sense or activates the associated pattern. The pattern activated would send a response to the efferent neurons to perform the needed action.

 

This may not be the exact mechanism but broadly describes the process of thinking.