P. Roger Turner

A number of philosophers and theologians have recently challenged the common assumption that it would be impossible for God to cause humans actions which are free in the libertarian or incompatibilist sense. Perhaps the most sophisticated version of this challenge is due to W. Matthews Grant. By offering a detailed account of divine causation, Grant argues that divine universal causation does not preclude humans from being ultimately responsible for their actions, nor free according to typical libertarian accounts. Here, we argue that the kind of divine universal causation that Grant proposes is incompatible with a plausible interpretation of Robert Kane’s influential conception of ultimate responsibility. This conclusion is significant since Grant seeks to harmonize his divine causal account with Kane’s articulation of ultimate responsibility.

In recent work, W. Matthews Grant challenges the common assumption that if humans have libertarian free will, and the moral responsibility it affords, then it is impossible for God to cause what humans freely do. He does this by offering a “non-competitivist” model that he calls the “Dual Sources” account of divine and human causation. Although we find Grant’s Dual Sources model to be the most compelling of models on offer for non-competitivism, we argue that it fails to circumvent a theological version of Peter van Inwagen’s direct argument for incompatibilism. In the paper, we motivate and deploy a theological take on the direct argument, and we contend that this theological rendition of the direct argument effectively dismantles Grant’s Dual Sources account of non-competitivism.

SummaryChristians often presume that immediate and universally extensive divine governance of human behavior is incompatible with human agency and responsibility. Against this presumption, Kathryn Tanner argues for a distinctive metalinguistic paradigm whereby Christians can coherently speak of God’s transcendence in such a way that divine action could never in principle ‘compete’ with human action. Thus, it is said, God can comprehensively will each human action without thereby compromising significant human freedom and corresponding moral responsibility. In this article, it is argued that Tanner’s non-competitivist paradigm fails to circumvent a theological version of the ‘direct argument’ for the incompatibility between human moral responsibility and causal determinism.

In a recent paper, Seth Shabo sets out to show that logical renderings of the Direct Argument for incompatibilism about moral responsibility and causal determinism, an influential incompatibilist argument for this conclusion, fail. In particular, Shabo argues that the Direct Argument—cashed out in logical terms—fails because it rests on an invalid rule of inference, Rule B. Shabo argues that Rule B, rendered logically, is subject to a counterexample that he constructs. If he’s right about this, it follows that logical versions of the Direct Argument fail. In the paper, I argue that Shabo’s alleged counterexample to Rule B is unsuccessful. Since Shabo’s counterexample fails, I conclude that he has failed successfully to undermine logical versions of the Direct Argument.

Rule A: if it's metaphysically necessary that p, we may validly infer that no one is even partly morally responsible for the fact that p. Our principal aim in this article is to highlight the importance of this rule and to respond to two recent challenges to it. We argue that rule A is more important to contemporary theories of moral responsibility than has previously been recognized. We then consider two recent challenges to the rule and argue that neither challenge successfully undermines the rule's initial appeal.

© 2015 Massachusetts Institute of Technology.Examining the function of individual human hippocampal subfields remains challenging because of their small sizes and convoluted structures. Previous human fMRI studies at 3 T have successfully detected differences in activation between hippo-campal cornu ammonis field CA1, combined CA2, CA3, and dentate gyrus region, and the subiculum during associative memory tasks. In this study, we investigated hippocampal subfield activity in healthy participants using an associative memory paradigm during high-resolution fMRI scanning at 7 T. We were able to localize fMRI activity to anterior CA2 and CA3 during learning and to the posterior CA2 field, the CA1, and the posterior subiculum during retrieval of novel associations. These results provide insight into more specific human hippocampal subfield functions underlying learning and memory and a unique opportunity for future investigations of hippocampal subfield function in healthy individuals as well as those suffering from neurodegenerative diseases.

In his “Plantinga on Exclusivisim,” Richard Feldman argues that Alvin Plantinga, in an earlier paper, has not sufficiently addressed a particular problem for the religious exclusivist. The particular problem that Feldman thinks Plantinga has failed sufficiently to address is the problem of epistemic peer disagreement—that is, disagreement between two (or more) equally competent thinkers who share equally good reasons for, and are in equally good epistemic situations regarding, their contradictory beliefs—in matters of religious belief. To demonstrate that Plantinga has so failed, Feldman introduces a principle, “B”, that purports to show that exclusivism (religious or not) tends to lead to unjustified beliefs. But I think that Feldman has failed successfully to show that B demonstrates exclusivism’s tendency to lead to unjustified beliefs; so, in the paper, I defend Plantinga, and the exclusivist more generally, from Feldman’s criticisms.

Most philosophers who study moral responsibility have done so in isolation of the concept of truth. Here, I show that thinking about the nature of truth has profound consequences for discussions of moral responsibility. In particular, by focusing on the very trivial nature of truth—that truth depends on the world and not the other way around—we can see that widely accepted counterexamples to one of the most influential incompatibilist arguments can be shown not only to be false, but also impossible.

In his “Plantinga on Exclusivisim,” Richard Feldman argues that Alvin Plantinga, in an earlier paper, has not sufficiently addressed a particular problem for the religious exclusivist. The particular problem that Feldman thinks Plantinga has failed sufficiently to address is the problem of epistemic peer disagreement—that is, disagreement between two (or more) equally competent thinkers who share equally good reasons for, and are in equally good epistemic situations regarding, their contradictory beliefs—in matters of religious belief. To demonstrate that Plantinga has so failed, Feldman introduces a principle, ‘B’, that purports to show that exclusivism (religious or not) tends to lead to unjustified beliefs. But I think that Feldman has failed successfully to show that B demonstrates exclusivism’s tendency to lead to unjustified beliefs; so, in the paper, I defend Plantinga, and the exclusivist more generally, from Feldman’s criticisms.