BETWEEN PHYSICALISM AND MENTALISM: PHILIP CLAYTON ON MIND AND EMERGENCE

Abstract. Philip Clayton's work on emergence is a valuable contribution to the fields of religion, science, and philosophy. I focus on three narrow but extremely important areas of Clayton's work. First, Clayton deems that Terrence Deacon's emergence theory is difficult to accept because it is constructed from thermodynamics, thereby rendering it unable to address phenomenological issues. I examine Deacon's theory and show that development from a physics base is warranted. Furthermore, Clayton does not convincingly demonstrate that such a constructive approach is necessarily incapable of attending to mental phenomena or offer an alternative that explains the causal power of a physically nonconstructible mental realm. Second, I argue that Clayton's notion of emergentist supervenience for comprehending the mental/physical relation is unnecessarily redundant and problematic in relation to causal power. Third, I explore Clayton's alternative use of agent causation to make sense of mental properties having causal power in the world. His effort to resolve emergence difficulties by appealing to phenomenology receives primary attention. Clayton's use of emergence theory is an important contribution to the religion‐and‐science community, and I encourage further dialogue on the exchange that Clayton commences.     

Understanding how input matters: verb learning and the footprint of universal grammar

Studies under the heading "syntactic bootstrapping" have demonstrated that syntax guides young children's interpretations during verb learning. We evaluate two hypotheses concerning the origins of syntactic bootstrapping effects. The "universalist" view, holding that syntactic bootstrapping falls out from universal properties of the syntax-semantics mapping, is shown to be superior to the "emergentist" view, which holds that argument structure patterns emerge from a process of categorization and generalization over the input. These theories diverge in their predictions about a language in which syntactic structure is not the most reliable cue to a certain meaning. In Kannada, causative morphology is a better predictor of causative meaning than transitivity is. Hence, the emergentist view predicts that Kannada-speaking children will associate causative morphology (in favor of transitive syntax) with causative meaning. The universalist theory, however, predicts the opposite pattern. Using an act-out task, we found that 3-year-old native speakers of Kannada associate argument number and not morphological form with causativity, supporting the universalist approach.     

Essentialism and Nonnaturalist Normative Supervenience

In this essay I defend a kind of nonnaturalist normative supervenience, grounded in the essences of things. Essentialist theories, in fact, give us the tools to treat the nexus of normative supervenience as a nexus of metaphysical necessity, holding between the normative and the natural. In this context, essentialist grounding provides an explanation of normative supervenience that allows us to keep together both supervenience and nonnaturalism. Moreover, to achieve this significant result, I do not make use of hybrid properties, which are both normative and natural. Rather, I endeavour to show that the notion of hybrid property is based on an erroneous notion of grounding.     

Kriterien für eine theorie zur L?sung des Leib-Seele-Problems

The article presents a critical survey of the philosophical discussion of the mind-body-problem since the collapse of Rylean behaviourism. The major theories (identity theories, supervenience, emergentist materialism, dualist interactionism and functionalism) are sketched and briefly evaluated with regard to their advantages and disadvantages. The conclusion is that no satisfactory theory about the relation between mental and neurophysiological states exists today, but considerable progress has been made regarding the contours of this cluster of problems. A catalogue of criteria which every future theory concerning the mind-body problem must fulfill is given at the end.     

MAXIMALITY,DUPLICATION, AND INTRINSIC VALUE

In this paper, I develop an argument for the thesis that ‘maximality is extrinsic’, on which a whole physical object is not a whole of its kind in virtue of its intrinsic properties. Theodore Sider has a number of arguments that depend on his own simple argument that maximality is extrinsic. However, Peter van Inwagen has an argument in defence of his Duplication Principle that, I will argue, can be extended to show that Sider's simple argument fails. However, van Inwagen's argument fails against a more complex, sophisticated argument that maximality is extrinsic. I use van Inwagen's own commitments to various forms of causation and metaphysical possibility to argue that maximality is indeed extrinsic, although not for the mundane reasons that Sider suggests. I then argue that moral properties are extrinsic properties. Two physically identical things can have different moral properties in a physical world. This argument is a counterexample to a classical ethical supervenience idea (often attributed to G.E. Moore) that if there is identity of physical properties in a physical world, then there is identity in moral properties as well. I argue moral value is ‘border sensitive’ and extrinsic for Kantians, utilitarians, and Aristotelians.     

Supervenience and Basic Christian Beliefs

A field-oriented interpretation of Whiteheadian societies of actual occasions, when used to explain the notion of "strong supervenience" as applied to the mind-brain problem, allows one to claim that not only higher-level properties such as consciousness but even higher-level entities such as the mind or soul are emergent from lower-level systems of neuronal interaction. Moreover, it also explains the preexistence of God to the world and Christian belief in eternal life with the triune God in a way that is impossible within the limits of a theory of strong supervenience.     

How does downward causation exist?—A comment on Kim’s elimination of downward causation

The importance of downward causation lies in showing that it shows that functional properties such as mental properties are real, although they cannot be reduced to physical properties. Kim rejects nonreductive physicalism, which includes leading functionalism, by eliminating downward causation, and thereby returns to reductionism. In this paper, I make a distinction between two aspects of function—functional meaning and functional structure and argue that functional meaning cannot be reduced to the physical level whereas functional structure can. On this basis, I further distinguish between the integer of the function, which includes the functional meaning and the functional structure, and the whole of the functional realization, and also among the strong, medial, and weak supervenience relations. So-called downward causation is indeed the relationship between the whole of the functional realization and its physical realizer, which is a whole-part relation instead of a relation between levels. As a result of understanding downward causation in this way and abandoning the principle of the causal closure of the physical world, Kim’s argument becomes invalid and nonreductive functionalism, justified.     

Essentially Grounded Non-Naturalism and Normative Supervenience

Non-naturalism—roughly the view that normative properties and facts are sui generis and incompatible with a purely scientific worldview—faces a difficult challenge with regard to explaining why it is that the normative features of things supervene on their natural features. More specifically: non-naturalists have trouble explaining the necessitation relations, whatever they are, that hold between the natural and the normative. My focus is on Stephanie Leary’s recent response to the challenge, which offers an attempted non-naturalism-friendly explanation for the supervenience of the normative on the natural by appealing to hybrid properties, the essences of which link them to both natural and sui generis normative properties in suitable ways. I argue that despite its ingenuity, Leary’s solution fails. This is so, I claim, because there are no hybrid properties of the sort that her suggestion appeals to. If non-naturalists are to deal with the supervenience challenge, they will have to find another way of doing so.     

The neural evidence for simulation is weaker than I think you think it is

Simulation theory accounts of mind-reading propose that the observer generates a mental state that matches the state of the target and then uses this state as the basis for an attribution of a similar state to the target. The key proposal is thus that mechanisms that are primarily used online, when a person experiences a kind of mental state, are then co-opted to run Simulations of similar states in another person. Here I consider the neuroscientific evidence for this view. I argue that there is substantial evidence for co-opted mechanisms, leading from one individual’s mental state to a matching state in an observer, but there is no evidence that the output of these co-opted mechanisms serve as the basis for mental state attributions. There is also substantial evidence for attribution mechanisms that serve as the basis for mental state attributions, but there is no evidence that these mechanisms receive their input from co-opted mechanisms.     

Shoemaker on emergence

Sydney Shoemaker has recently given an account of emergent properties according to which emergent properties are a special type of structural property and the determination relation holding between emergent properties and their base properties is one of “mere nomological supervenience.” According to Shoemaker, emergent properties are what he calls type-2 microstructural properties, whereas physical properties are type-1 microstructural properties. After highlighting the advantages of viewing emergent properties as a special class of microstructural properties, I show how according to his own causal theory of properties type-2 microstructural properties actually reduce to type-1 microstructural properties, and thus do not truly count as emergent. I then suggest an alternative view according to which emergent properties are actually a third type of microstructural property, one not considered by Shoemaker. I conclude with reflections why we might view the dependence relation between emergent properties and their physical base properties as a causal relation rather than one of mere supervenience.     

The role of supervenience and constitution in neuroscientific research

This paper is concerned with the notions of supervenience and mechanistic constitution as they have been discussed in the philosophy of neuroscience. Since both notions essentially involve specific dependence and determination relations among properties and sets of properties, the question arises whether the notions are systematically connected and how they connect to science. In a first step, some definitions of supervenience and mechanistic constitution are presented and tested for logical independence. Afterwards, certain assumptions fundamental to neuroscientific inquiry are made explicit in order to show that the presented definitions of supervenience are virtually uninteresting for theory construction in this field. In a third step, a new formulation of supervenience is developed that makes explicit reference to the notion of constitution and that bridges the gap between the philosophical concepts and explanatory practice in neuroscience.     

Supervenience,Repeatability, & Expressivism

Expressivists traditionally explain normative supervenience by saying it is a conceptual truth. I argue against this tradition in two steps. First, I show the modal claim that stands in need of explanation has been stated imprecisely. Classic arguments in metaethics for normative supervenience and those that rely on it as a premise presuppose a constraint on the supervenience base that is rarely (if ever) made explicit: the repeatability of the non-normative properties on which the normative supervenes. Non-normative properties are repeatable when it is possible for numerically distinct individuals to share them. Second, I show if the modal truth that stands in need of explanation entails that there are individuals exactly alike in repeatable non-normative respects that cannot normatively differ, then standard expressivist accounts of normative supervenience as a conceptual truth are unsuccessful. Expressivist metasemantics for normative terms, together with constitutive facts about the non-cognitive attitudes essentially involved in normative thought, strongly suggest that repeatable supervenience could not be a conceptual truth. I argue, finally, that although repeatable supervenience bears the marks of a conceptual truth, expressivists should be content to treat it as an ordinary normative truth, and to explain it the same way they explain other normative truths.     

The Price of Non-reductive Moral Realism

Non-reductive moral realism is the view that there are moral properties which cannot be reduced to natural properties. If moral properties exist, it is plausible that they strongly supervene on non-moral properties- more specifically, on mental, social, and biological properties. There may also be good reasons for thinking that moral properties are irreducible. However, strong supervenience and irreducibility seem incompatible. Strong supervenience entails that there is an enormous number of modal truths (specifically, truths about exactly which non-moral properties necessitate which moral properties); and all these modal truths must be explained. If these modal truths can all be explained, then it must be a fundamental truth about the essence of each moral property that the moral property is necessarily equivalent to some property that can be specified purely in mental, social and biological terms; and this fundamental truth appears to be a reduction of the moral property in question. The best way to resist this argument is by resorting to the claim that mental and social properties are not, strictly speaking, natural properties, but are instead properties that can only be analysed in partly normative terms. Acceptance of that claim is the price of non-reductive moral realism.     

Empathy and the responsiveness to social affordances

The direct perception theory of empathy claims that we can immediately experience a person’s state of mind. I can see for instance that my neighbour is angry with me in his bodily countenance. I develop a version of the direct perception theory of empathy which takes this perceptual capacity to depend upon recognising in what way the other person is responsive to the affordances the environment provides. By recognising which possibilities for action are relevant to a person, I can thereby understand something about the meaning they give to the world. I come to share something of their perspective on the world, and this allows me to grasp based on my perception of them something about their current state of mind. I argue that shared affect plays a central role in this perceptual capacity. Shared affect allows me to orient my attention to possibilities for action that matter to the other person. I end by briefly discuss the implications of this view of empathy for the disturbances in so-called “cognitive empathy” that are found in people diagnosed with autism spectrum disorder.     

Content: Covariation,control and contingency

The Representational Theory of the Mind allows for psychological explanations couched in terms of the contents of propositional attitudes. Propositional attitudes themselves are taken to be relations to mental representations. These representations (partially) determine the contents of the attitudes in which they figure. Thus, Representationalism owes an explanation of the contents of mental representations. This essay constitutes an atomistic theory of the content of formally or syntactically simple mental representation, proposing that the content of such a representation is determined by the intersection of the representation's correlational and control properties. The theory is distinguished from standard information-based accounts of mental content in allowing that the relevant correlations be contingent while insisting on an efferent aspect to mental content. The theory on offer allows for a natural explanation of misrepresentation, finds a niche for the notion ofnarrow content, welcomes radical first person fallibility with respect to questions of content, admits of mental ambiguity and recognizes that the future of a psychological agent is a factor in determining the content of the agent's present psychological states.     

Realist ethical naturalism for ethical non-naturalists

It is common in metaethics today to draw a distinction between “naturalist” and “non-naturalist” versions of moral realism, where the former view maintains that moral properties are natural properties, while the latter view maintains that they are non-natural properties instead. The nature of the disagreement here can be understood in different ways, but the most common way is to understand it as a metaphysical disagreement. In particular, the disagreement here is about the reducibility of moral properties, where the “naturalists” maintain that moral properties are in some way reducible to the lower-level natural properties on which they supervene, while the “non-naturalists” maintain that moral properties are sui generis and robustly irreducible. In this paper I present a novel version of realist ethical naturalism—a view that I call Emergentist Ethical Naturalism—that reveals this common way of understanding the distinction between naturalism and non-naturalism to be flawed by combining a commitment to ethical naturalism with a commitment to the sui generis and robustly irreducible nature of moral properties that typically defines non-naturalism. Then, after presenting the theory and addressing a few worries that one might have about it, I show how it offers some novel, emergence-based responses to the various supervenience challenges that plague moral realism and thereby gives the ethical naturalist a robustly non-reductive option for dealing with these challenges.     

Supervenience and neuroscience

The philosophical technical term “supervenience” is frequently used in the philosophy of mind as a concise way of characterizing the core idea of physicalism in a manner that is neutral with respect to debates between reductive physicalists and nonreductive physicalists. I argue against this alleged neutrality and side with reductive physicalists. I am especially interested here in debates between psychoneural reductionists and nonreductive functionalist physicalists. Central to my arguments will be considerations concerning how best to articulate the spirit of the idea of supervenience. I argue for a version of supervenience, “fine-grained supervenience,” which is the claim that if, at a given time, a single entity instantiates two distinct mental properties, it must do so in virtue of instantiating two distinct physical properties. I argue further that despite initial appearances to the contrary, such a construal of supervenience can be embraced only by reductive physicalists.     

Plumbing the Depths: A Recovery of Natural Law and Natural Wisdom in the Context of Debates about Evolutionary Purpose

I argue that the theological traditions of natural law and wisdom offer helpful meeting points in discussions about evolutionary “purpose” and contingency in relation to theological purpose, and serve to form the basis for a theology of nature. Natural law offers a way of describing the ordered action of God toward complexity in a contingent world without using the language of either “design” or “progress.” The theological tradition of wisdom as implicit in the natural world, learned in the human community, and received as gift of grace offers a further means of interconnecting biological reality with spiritual experience, while retaining distinctions. Wisdom and natural law intersect inasmuch as natural law is participation in Eternal Wisdom, although the latter makes sense only from the prior perspective of faith.     

The Conception of a Person as a Series of Mental Events

It is argued that those who accept the psychological criterion of personal identity, such as Parfit and Shoemaker, should accept what I call the 'series' view of a person, according to which a person is a unified aggregate of mental events and states. As well as defending this view against objections, I argue that it allows the psychological theorist to avoid the two lives objection which the 'animalist' theorists have raised against it, an objection which causes great difficulties for the conception of a person that most psychological theorists favour, the constitution view. It is also argued that the series view allows that people can body swap and teleport, which the constitution view–which takes a person to be a physical object (but a distinct physical object from the human being)–has great trouble with.     

The Humanizing Brain: A Clinician/Pastor Response

The Humanizing Brain is an effort by theological scholars to integrate neuroscience and theological constructs into a cohesive evolutionary and developmental scheme. The primary strength is a developing dialogue between neurodevelopmental theory and process theology. The book's widest appeal should be to theologians exploring religious and spiritual manifestations in the brain and neurosciences. The relatively simplistic science may limit significant usefulness to broad neuroscientific and medical communities, although neuroscientists and sophisticated lay readers with interests and back-grounds in theology may find The Humanizing Brain quite informative and interesting.