Thursday, January 12, 2012

A Reaction to Broca & Fechner


            Physics and Biology/Anatomy do not necessarily go together, but I guess they can in this case.  Fechner talks about weber’s Law and psychic measurements and how they can measure sensations.  Broca talks about a young gentleman he studied who could not talk, but knew what you were saying and could respond with his hands a little bit.  Psychic measurements are going to possibly explain what is going on with the young man in Broca’s discussion.
            Fechner/Weber's law states that subjective sensation is proportional to the logarithm of the stimulus intensity.  Meaning that Weber’s Law can help to measure the amount of sensations between the mind and the body by using psychic measurements and psychophysics, “From this it may be foreseen, that this law, after it has been restated as a relation between sensation and the psycho-physical processes, will be as important, general, and fundamental for the relations of mind and body, as is the law of gravity for the field of planetary motion.”  He had listed quite a few formulas throughout this paper and explained what they were for, but I just kept getting confused and lost.  I do not mind physics and explaining how things work through it, but when you start to add algebra my mind shuts down.  Math is not my forte in any way at all.  I was lucky to have passed Statistics at all and now here an article that really only talked of formulas.  Needless to say I understood in the beginning, but once Fechner started talking about Math I was lost in another world.
            Broca on the other hand was easier to understand, because I am interested in illnesses of all kinds.  I am especially interested in illnesses that doctors have never seen before or become baffled with because it was not exactly what they thought it was at first since it has developed new traits or has taken a different turn than what it says in the textbooks as time goes on.  Mental illnesses are probably one of the most unpredictable sources out there in the world.  In this reading Broca studies the brain of a 51 year old man with quite an interesting story; this man had been 21 when he was brought into the hospital with only the ability to speak the word tan tan
 and gesture accordingly in conversation so he would hopefully of been understood.  The hospital then referred to him as tan.  When he first arrived at the hospital he was intelligent and perfectly capable of taking care of himself, however, later on in his stay at the hospital he had lost the entire function of his right arm and then slowly he lost the functions of his entire right side and his sight started to weaken and those who had been in contact with him daily had explained that even his intelligence started to drop.  After he had gone to a different hospital for an infection that had covered him from heel to buttocks on one side of this body is when Broca was able to see Tan for the first time.  After Tan had died they had a chance to look at his brain to find that the majority of his left side was soft and damaged expect for the part which controlled speech, which makes sense since he was still intelligent enough to understand speech and want to answer, but was unable to since only the left side of his tongue worked.
            Well this was an interesting pairing to say the least.  They were actually somehow able to work with each other and explain the problem in Broca’s paper.  Fechner did a good job at explaining the various laws and measures and their importance and Broca did a good job at explaining what had happened to young Tan to the best of his ability.  Since both of these papers were written so well you could compare them easily to one another and see how they tie together.

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