Sensations And The Brain Essay

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This paper aims to endorse physicalism over dualism by means of Smart’s concept of identity theory. Smart’s article Sensations and the Brain provides a strong argument for identity theory and accounts for many of it primary objections. Here I plan to first discuss the main arguments for physicalism over dualism, then more specific arguments for identity theory, and finish with further criticisms of identity theory.
Physicalism is the theory that the universe contains nothing other than the physical. Therefore, the universe can be fully explained in physical terms. In terms of the mind, mental states globally supervene on physical states, meaning that there are no changes in the mental without changes in the physical. Identity theory is a …show more content…

Complete physical explanations can account for all experience and once all the physical facts are set/known then nothing can add to or detract from experience. That being said, a scientist can learn all of the physics behind lightning, every detail of cause and effect, even see photographs of lightning bolts, without ever seeing lighting first hand. If this is true he should have a complete physical understanding of lighting. So if identity theory is correct, he should gain no new experience from witnessing lighting. This, however, does not seem true. It may produce no new information but it seems plausible, even logical, that it would have an impact at least …show more content…

Then if they stimulate the brain in a certain way they can control what people are thinking and create experiences. Therefore, if one person had never seen, heard of, tasted, or smelled a cookie, a neurologist should be able to create that exact experience through brain manipulation. Also, there should be no added mental response when the subject eats his “first” cookie.
This, however, seems entirely false. Neuroscience has progressed and shown that rudimentary brain manipulation is possible, but it is counter-intuitive to believe that triggering F-fiber can suddenly result in entirely new tactile and emotional knowledge. It is more plausible to consider that people describe sensations as what its like to experience something of which they already have knowledge. So, when they receive the real product they would likely have an emotional response or attachment to it that cannot be accounted for in identity

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