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According to Ned Block, Functionalism is concerned with finding the answer to the question (“what are mental states?”), ("What are mental states?”) One of the features of the functionalism is that it sees each form of mental state as being a state which includes the tendency to behave in particular ways in addition to possessing particular mental states. Functionalists are usually preoccupied with the individuation of mental states, partly on the basis of causal relations to other mental states. As Shoemaker explains, in the 1975 work, functionalism, from the philosophy of mind view is the conviction that psychological or mental terms can be done away to a certain extent. Functionalists have been known to treat terms related to mental states as a mental state functional characterization which differs from input and output terms. Therefore in a (“simplified Turing –machine version of the theory,”) mental states are associated with the states of the Turing-machine, which own on their own are clearly defined by a machine table which mentions outputs and outputs that are explored nonmentalistically. Additionally functionalism empathizes that characterization of mental states ought to include descriptions of outputs and inputs in both its non-machine and machine versions. The variation between Psychofunctionalism and Functionalism brings forth a difference in specifying outputs and inputs. Functionalists are restricted to specification of outputs and inputs that constitutes common-sense knowledge; Psychofunctionalists are not bound by such restrictions. Whereas both sides lay emphasis on physical specification outputs and inputs, Functionalists are keen on classifications that are externally observable. Psychofunctio... ... middle of paper ... ...rocess of counting impulses of neurons to give the entries of inputs and outputs helps avoid the dilemma just sketched, because the brains contained in bottle, and paralytics would bear the right impulses of neurons, though without bodily movements. The objection, however, would be, there is a possible paralysis which affects the body’s nervous system, and this can therefore affect the neural impulses. Psychofunctionalism therefore presents the same problem that is presented by Functionalism. A sound reply would be, diseases of the nervous system have the potential of changing one’s mentality, for example, they cause the victim never suffer the feeling of pain. Therefore, there is a probability of reliability in finding, that a widespread disease of the nervous system which brought about intermittent paralysis caused people to be incapable of various mental slates.

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