Free Will
Posted in Brain on December 28th, 2008 by BradfordShallow analysis is a common bedfellow of attempts to link science to stealth metaphysics. The stealth metaphysics considered here is the issue of free will. Denialists- materialists who maintain that free will is but an illusion- on occasion invoke a study showing brain activity in a specified brain region prior to the moment an individual expresses a decision. Patterns of brain activity consistent with the choice made can be evident seconds prior to the moment an individual actually commits to a decision. That data is used to support the contention that physical brain dynamics, preceeding a decision, determine the decision and allow the individual to falsely think that he or she has chosen between available options.
So what's wrong with the preceeding analysis? One striking aspect of denialist thinking is its vagueness. We have no neural mappings allowing us to distinguish between opting for a banana instead of an apple. We lack the details needed to link pre-decision process thinking to precise brain conditions. Materialists will assert that desires and decisions are reducible to states of a physical system. But they lack detailed knowledge not just of the range of possible relevant physical states, but also of the thoughts correlating to different physical states. Free will denialists all too frequently mask their metaphysics in sciency garb.








