ABSTRACT:Determining the biological function of phenomenal consciousness appears necessary to explain its origin: evolution by natural selection operates on organisms’ traits based on the biological functions they fulfill. But identifying the function of phenomenal consciousness has proven difficult. Some have proposed that the function of phenomenal consciousness is to facilitate mental processes such as reasoning or learning. But mental processes such as reasoning and learning seem to be possible in the absence of phenomenal consciousness. It is difficult to pinpoint in (...) what way phenomenal consciousness enhances these processes or others like them. In this paper, we explore a possibility that has been neglected to date. Perhaps phenomenal consciousness has no function of its own because it is either a by-product of other traits or a (functionless) accident. If so, then phenomenal consciousness has an evolutionary explanation even though it fulfills no biological function. (shrink)

U. T. Place claims that philosophical problems concerning the true nature of mind-brain relationship disappears or is settled adhering to materialism, especially type identity theory of mind. He takes above claim as a reasonable scientific hypothesis. I shall argue why it is not as he claims. At first, to pave the way for refutation, I will briefly clarify Place's approach to the subject in hand; although the rest of the paper will also contain more details about his position. Then, I (...) will reduce his position into four theses and try to prove that the main claim of type identity theory is neither reasonable nor a mere scientific problem in disguise. I think that we ought to regard type identity theory, at most, just as a hypothesis which approximately displays the function of mind-brain relationship but tells us nothing justifiably about its true nature. (shrink)