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Profile: Gregory Johnson (Drexel University)
  1. Gregory Johnson (2012). The Relationship Between Psychological Capacities and Neurobiological Activities. European Journal for Philosophy of Science 2 (3):453-480.
    This paper addresses the relationship between psychological capacities, as they are understood within cognitive psychology, and neurobiological activities. First, Lycan’s ( 1987 ) account of this relationship is examined and certain problems with his account are explained. According to Lycan, psychological capacities occupy a higher level than neurobiological activities in a hierarchy of levels of nature, and psychological entities can be decomposed into neurobiological entities. After discussing some problems with Lycan’s account, a similar, more recent account built around levels of (...)
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  2. Gregory M. Johnson (2010). Abstract Elementary Classes with Löwenheim-Skolem Number Cofinal with Ω. Notre Dame Journal of Formal Logic 51 (3):361-371.
    In this paper we study abstract elementary classes with Löwenheim-Skolem number $\kappa$ , where $\kappa$ is cofinal with $\omega$ , which have finite character. We generalize results obtained by Kueker for $\kappa=\omega$ . In particular, we show that $\mathbb{K}$ is closed under $L_{\infty,\kappa}$ -elementary equivalence and obtain sufficient conditions for $\mathbb{K}$ to be $L_{\infty,\kappa}$ -axiomatizable. In addition, we provide an example to illustrate that if $\kappa$ is uncountable regular then $\mathbb{K}$ is not closed under $L_{\infty,\kappa}$ -elementary equivalence.
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  3. Gregory Johnson (2009). Mechanisms and Functional Brain Areas. Minds and Machines 19 (2):255-271.
    Explanations of how psychological capacities are carried out often invoke functional brain areas. I argue that such explanations cannot succeed. Psychological capacities are carried out by identifiable entities and their activities in the brain, but functional brain areas are not the relevant entities. I proceed by assuming that if functional brain areas did carry out psychological capacities, then these brain areas could be included in descriptions of mechanisms. And if functional brain areas participate in mechanisms, then they must engage in (...)
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  4. Gregory Johnson (2008). LeDoux's Fear Circuit and the Status of Emotion as a Non-Cognitive Process. Philosophical Psychology 21 (6):739 - 757.
    LeDoux (1996) has identified a sub-cortical neural circuit that mediates fear responses in rats. The existence of this neural circuit has been used to support the claim that emotion is a non-cognitive process. In this paper I argue that this sub-cortical circuit cannot have a role in the explanation of emotions in humans. This worry is raised by looking at the properties of this neural pathway, which does not have the capacity to respond to the types of stimuli that are (...)
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  5. Michelle E. Brady, Paul A. Cantor, Thomas Darby, Henry T. Edmondson Iii, Stephen L. Gardner, Marc D. Guerra, Gregory R. Johnson, Joseph M. Knippenberg, Peter Augustine Lawler, Daniel J. Mahoney, James F. Pontuso, Paul Seaton & Ashley Woodiwiss (2001). Faith, Reason, and Political Life Today. Lexington Books.
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  6. Gregory R. Johnson & David Rasmussen (2001). Rand on Abortion, Revisited. Journal of Ayn Rand Studies 2 (2).
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  7. Gregory R. Johnson & David Rasmussen (2001). Rejoinder to Machan and Tabarrok: Rand on Abortion, Revisited. Journal of Ayn Rand Studies 2 (2):469 - 485.
    Gregory R. Johnson and David Rasmussen defend their critique of Ayn Rand's views on abortion, arguing that their critics miss its main points. Tibor Machan and Alexander Tabarrok actually depart from Rand's own position under the guise of defending it; they introduce a non-Randian distinction between being a human organism and being a moral person.
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  8. Gregory R. Johnson & Chris Matthew Sciabarra (2001). Ayn Rand in the Scholarly Literature. [REVIEW] Journal of Ayn Rand Studies 3 (1):165 - 169.
    Gregory R. Johnson and Chris Matthew Sciabarra discuss references to Ayn Rand in the works of Paul Feyerabend and Slovaj Žižek.
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  9. J. Patrick Dobel, Henry T. Edmondson Iii, Gregory R. Johnson, Peter Kalkavage, Judith Lee Kissell, Peter Augustine Lawler, Alan Levine, Daniel J. Mahoney, Will Morrisey, Pádraig Ó Gormaile, Paul C. Peterson, Michael Platt, Robert M. Schaefer, James Seaton & Juan José Sendín Vinagre (2000). The Moral of the Story: Literature and Public Ethics. Lexington Books.
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  10. Gregory R. Johnson (2000). Ayn Rand and the Mastery of Nature. Journal of Ayn Rand Studies 2 (1).
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  11. Gregory R. Johnson (2000). Philosophy as a Way of Life. New Vico Studies 18:135-138.
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  12. Gregory R. Johnson (2000). Plato the Myth Maker. New Vico Studies 18:145-147.
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  13. Gregory R. Johnson (2000). Rejoinder to Thomas and Vacker: Ayn Rand and the Mastery of Nature. Journal of Ayn Rand Studies 2 (1):229 - 240.
    Gregory R. Johnson argues, contra Barry Vacker, that reductionist thinking and nonlinear aesthetics are not mutually exclusive, and that the passages in The Fountainhead cited by Vacker actually support the mastery of nature thesis. Johnson also addresses some miscellaneous criticisms offered by William Thomas, who wrote a review of Johnson's "Liberty and Nature" (Journal of Ayn Rand Studies, Fall 1999) that appeared in Navigator.
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  14. Gregory R. Johnson & David Rasmussen (2000). Rand on Abortion: A Critique. Journal of Ayn Rand Studies 1 (2):245 - 261.
    GREGORY R. JOHNSON and DAVID RASMUSSEN argue that Rand's defense of abortion on demand is inconsistent with her own fundamental metaphysical, epistemological, and moral principles, namely that everything that exists has a determinate identity, that the concept of man refers to all of man's characteristics, not just his essential characteristics, and that there is no gap between what an organism truly is and what it ought to be.
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  15. Gregory Johnson & Glenn Magee (2000). Berlin on Liberalism and Objective Value. Journal of Value Inquiry 34 (4):397-408.
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  16. Gregory R. Johnson (1999). Liberty and Nature: The Missing Link. Journal of Ayn Rand Studies 1 (1):135 - 166.
    GREGORY R. JOHNSON examines the link between Ayn Rand's ethics, which can be broadly characterized as Aristotelian, and her political philosophy, which can be broadly characterized as classical liberalism of the Lockean, natural rights variety. He maintains that Rand's argument for classical liberalism on the basis of the objectivity of values fails because of a reductionistic and excessively intellectualistic conception of human nature. In addition to discussing Rand's arguments, he surveys the Rand-influenced work of Douglas B. Rasmussen and Douglas J. (...)
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  17. Gregory R. Johnson (1999). The Role of Religion in History. New Vico Studies 17:138-140.
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  18. Gregory R. Johnson (1998). Myth and the Limits of Reason. New Vico Studies 16:123-125.
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  19. Gregory R. Johnson (1998). Rethinking Political Theory. New Vico Studies 16:125-127.
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  20. Gregory R. Johnson (1997). Page, Carl R. Philosophical Historicism and the Betrayal of First Philosophy. Review of Metaphysics 50 (4):912-915.
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  21. Gregory R. Johnson (1997). Recasting Conservatism. Review of Metaphysics 50 (4):876-878.
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  22. Gregory R. Johnson (1997). Sullivan, Roger J. An Introduction to Kant's Ethics. Review of Metaphysics 50 (4):926-927.
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  23. Gregory R. Johnson (1997). Shell, Susan Meld. The Embodiment of Reason: Kant on Spirit, Generation, and Community. Review of Metaphysics 50 (4):918-920.
  24. Gregory R. Johnson (1997). Update: Publications Through 1997. New Vico Studies 15:90-94.
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  25. Gregory R. Johnson (1993). Heidegger's Confrontation with Modernity. Review of Metaphysics 47 (2):402-403.
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  26. Gregory R. Johnson (1991). A Friend of Reason: José Guilherme Merquior. Critical Review 5 (3):421-446.
    This essay surveys and assesses J. G. Merquior's principal English?language contributions to liberal social and political theory. The greatest strength of Merquior's work is his recognition that one can neither understand nor defend liberalism without first understanding and defending modernity. The greatest weakness of Merquior's work is his overly oppositional conception of the relationship between modernity and its postmodern critics, particularly his failure to recognize that both the positive and negative features of postmodernism are simply radicalizations of the positive and (...)
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  27. Gregory R. Johnson (1990). Hermeneutics: A Protreptic. Critical Review 4 (1-2):173-211.
    An argument is made for the relevance of phenomenological hermeneutics to economics, with special attention to recent debates on hermeneutics among economists of the Austrian school of Ludwig von Mises and F. A. Hayek. Hermeneutics is explicated in the context of Husserlian phenomenology, with special attention to phenomenology's Aristotelian roots. Naive and methodological forms of ?objectivism?; are contrasted with hermeneutics, which recovers the horizons of scientific knowledge: the whole, and the activities of the human knower. Finally, the charges that hermeneutics (...)
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