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Yuichi Amitani
University of Pittsburgh
  1. Prototypical Reasoning About Species and the Species Problem.Yuichi Amitani - 2015 - Biological Theory 10 (4):289-300.
    The species problem is often described as the abundance of conflicting definitions of _species_, such as the biological species concept and phylogenetic species concepts. But biologists understand the notion of species in a non-definitional as well as a definitional way. In this article I argue that when they understand _species_ without a definition in their mind, their understanding is often mediated by the notion of _good species_, or prototypical species, as the idea of ``prototype'' is explicated in cognitive psychology. This (...)
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    The Frequency Hypothesis and Evolutionary Arguments.Yuichi Amitani - 2008 - Kagaku Tetsugaku 41 (1):79-94.
    Gerd Gigerenzer's views on probabilistic reasoning in humans have come under close scrutiny. Very little attention, however, has been paid to his evolutionary component of his argument. According to Gigerenzer, reasoning about probabilities as frequencies is so common today because it was favored by natural selection in the past. This paper presents a critical examination of this argument. It will show first, that, _pace_ Gigerenzer, there are some reasons to believe that using the frequency format was not more adaptive than (...)
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    The Natural Frequency Hypothesis and Evolutionary Arguments.Yuichi Amitani - 2015 - Mind and Society 15 (1):1-19.
    In the rationality debate, Gerd Gigerenzer and his colleagues have argued that human’s apparent inability to follow probabilistic principles does not mean our irrationality, because we can do probabilistic reasoning successfully if probability information is given in frequencies, not percentages (the natural frequency hypothesis). They also offered an evolutionary argument to this hypothesis, according to which using frequencies was evolutionarily more advantageous to our hominin ancestors than using percentages, and this is why we can reason correctly about probabilities in the (...)
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    A Tale of Two Minds: Past, Present and Future.Yuichi Amitani - 2016 - Annals of the Japan Association for Philosophy of Science 24:21-43.
    The dual process theory is a view that there are two information-processing systems in our mind. It has been popular in cognitive and social psychology for the last few decades, but this simplified formulation of the theory has problems. In this paper I shall review the recent developments made by the dual process theorists to meet those challenges and indicate the directions the theory could take. In particular I shall discuss possible defining properties or mechanisms of the two systems. I (...)
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    Jonathan St. B. T. Evans , Thinking Twice: Two Minds in One Brain . Reviewed By. [REVIEW]Yuichi Amitani - 2012 - Philosophy in Review 32 (3):174-176.
  6.  18
    Natural Kinds, Species, and Races.Yuichi Amitani - 2015 - Kagaku Tetsugaku 48 (1):35-48.
    In _Realism and Naturalizing Knowledge_ (Keisho Shobo, 2013), Ryo Uehara carefully formulates the homeostatic property cluster theory of natural kinds and expands it by applying this framework to artifacts and knowledge and thereby drawing them in the naturalistic picture of the world. This is a substantial addition to the development of naturalistic philosophy in Japan. In this essay I shall make general comments on his account of natural kinds in the following respects: Uehara's distinction between real and nominal kinds, his (...)
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    The Communication Puzzle of the Species Problem.Yuichi Amitani - 2013 - Annals of the Japan Association for Philosophy of Science 21:1-20.
    The species problem is the longstanding puzzle regarding the nature of species. This paper aims to describe how biologists experience little communication breakdown when they have different conceptions of species. For this purpose, I analyze two debates on species and speciation between Guy Bush and Jerry Coyne & H. Allen Orr. Although they have radically different ideas on species, they experience little communication difficulty. I will argue that this is because they implicitly agreed on the referent of the group of (...)
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