This is a contribution to the encyclopedia of systems biology on dispositions.

This is a work in analytic metaphysics, which addresses a cluster of interrelated issues at the interface of mereology and persistence over time. In particular, it outlines a defence of a version of Endurance Theory according to which every enduring object is either a mereological simple or a mere sum of mereological simples. It includes, among other things, a proposal of a new way of framing the debate between Endurance Theory and Four-Dimensionalism, a defence of Endurance Theory over Four-Dimensionalism, arguments (...) against the existence of compound substances, and a defence of a traditional metaphysical atomism according to which all objects are ultimately made up of microscopic simples. (shrink)

This thesis proposes that key, competing theories of dispositions mistake and conflate how we identify, designate and talk about dispositions and dispositional terms for the nature of dispositions and the meaning of dispositional terms when they argue that: a) dispositions are extrinsic properties of their bearers (Boyle 1666) b) all properties are purely dispositional (Bird 2007) c) all properties are purely categorical (there are no dispositional properties) (Armstrong in AMP 1996) d) dispositional and categorical properties are separate and distinct properties (...) (Prior, Pargetter and Jackson 1982). In so doing these theories make unwarranted and unsupported ontological conclusions about dispositions. The thesis traces the principal source of this confusion and conflation to a reliance on the counterfactual analysis of dispositions that wrongly encourages the conflation of a disposition (say fragility) with its manifestation (shattering). There is good reason to hold that the counterfactual analysis of dispositions is false — the truth of a counterfactual statement (such as “if x were dropped x would break”) is neither necessary nor sufficient for the truth of a dispositional ascription (such as “x is fragile”). (shrink)

Philosophers of science have by and large neglected technology. In this book, I have tried to do something about this lacuna by analyzing a few aspects of technical artifacts from a philosophical angle. The project was part of the research program "The Dual Nature of Technical Artifacts" based at Delft University of Technology in the Netherlands. Technical artifacts are both plain physical objects and objects that have been purposefully made for a purpose; which is to say they have a physical (...) structure and a technical function. As a result, they belong equally in a purely physical conceptualisation of the world "in which human intentions and goals seem to have no place" and in an intentional conceptualisation, which is used to describe and understand people and their mental lives. My main goal was to find out how these two philosophically very different aspects of artifacts are related to one another. To achieve this goal, I looked at two contexts in which these aspects are regularly brought together in a systematic fashion. First, the context of design; design can be characterized as a transition from a desired function or goal to a physical structure. In particular, I have studied and analyzed the role of functional decomposition in design processes. The second context is the explanation of how artifacts are able to fulfill their technical function in virtue of their specific physical structure. The result of this part of the project is a general account of such explanations. (shrink)

I shall first set out the main lines of Meinong’s account then look at the theo- ries of dependence and possibility on which it is based. Finally I consider some applications of the theory, most of which are at least hinted at by Meinong.

We critically examine the role and status probabilities, as they enter via the Quantum Equilibrium Hypothesis, play in the standard, deterministic interpretation of deBroglie’s and Bohm’s Pilot Wave Theory (dBBT), by considering interpretations of probabilities in terms of ignorance, typicality and Humean Best Systems, respectively. We argue that there is an inherent conflict between dBBT and probabilities, thus construed. The conflict originates in dBBT’s deterministic nature, rooted in the Guidance Equation. Inquiring into the latter’s role within dBBT, we find it (...) explanatorily redundant (in particular for dBBT’s solution of the Measurement Problem, which only requires that the corpuscles possess definite positions), and subject to a number of difficulties. Following a suggestion from Bell, we propose to abandon the Guidance Equation, whilst retaining dBBT’s point particle-based Primitive Ontology, with positions as local beables. The resultant theory, which we identify as a stochastic, minimally deBroglie-Bohmian theory, describes a random walk through configuration space. Its probabilities, we propose, are best understood as dispositions of possible corpuscle configurations to manifest themselves. We subsequently evaluate the merits of sdBBT vis-à-vis dBBT, such as the justification of the Symmetrisation Postulate and the violation of the Action-Reaction Principle. Not only is sdBBT an attractive Bohmian theory that, whilst retaining dBBT's virtues, overcomes many of its shortcomings; it also sparks off a number of exciting follow-up questions, such as a comparison between sdBBT and other stochastic hidden-variable theories, e.g. Nelson Stochastics, or between sdBBT and the Everett interpretation. (shrink)

Dispositional essentialists claim that dispositional properties are essentially dispositional: a property would not be the property it is unless it carried with it certain dispositional powers. Categoricalists about dispositional properties deny this, asserting that the same properties might have had different dispositional powers, had the contingent laws of nature been otherwise.

Meu objetivo neste artigo é defender que podem ser atribuídos sentidos distintos para os termos “vontade” e “volição” na filosofia de Hume. Ao contrário das interpretações tradicionais, sustento que Hume não identifica vontade e volição. Inicialmente, apresento argumentos de Hobbes e Locke contra a concepção escolástica sobre a produção de ações voluntárias e defendo que Hume associa-se a esses dois filósofos. A seguir, apresento os argumentos da interpretação tradicional que identifica vontade e volição na filosofia humeana e também algumas objeções (...) feitas a tais argumentos. Por fim, em oposição à interpretação tradicional, defendo que Hume acredita que a vontade pode ser compreendida como a faculdade pela qual produzimos ações voluntárias e que volições são paixões motivacionais em exercício. As paixões motivacionais que produzem ações são volições, que é a percepção pela qual produzimos ações voluntárias. (shrink)

The aim for this thesis is to motivate, critically evaluate and defend the claim that subjects are able to consciously perceive the affordances of objects. I will present my protagonist, the ‘Conscious Affordance Theorist’, with what are two main obstacles to this claim. The first of these is that affordance perception correctly understood refers only to a kind of subpersonal visual processing, and not to a kind of conscious visual experience. I claim that this results in an explanatory gap at (...) the level of intentional action, which in order to correct we need to redefine the notion of affordance perception to include conscious as well as subpersonal affordance perception. Precisely, I claim that ‘affordance awareness’ has a crucial epistemological role to play, and that subjects must be able to consciously experience affordances in order to gain this awareness. In answer to this claim, I supplement the objection that affordance perception is defined as subpersonal perception to include the claim that any awareness subjects have of the affordances of objects they visually experience is due to them having thoughts about those affordances, and not visual experience of them. I then consider the Conscious Affordance Theorist’s response to this supplemented account. The second obstacle is the claim that conscious visual affordance perception is an impossible notion given that affordances are dispositional properties, and the dispositional properties of objects cannot be ‘seen’. In facing this objection I look to the supporting claims and motivations that lie behind it, in order to find a way for the Conscious Affordance Theorist to challenge its central claim that affordances cannot be seen. I end this thesis with an account of the Conscious Affordance Theorist’s own positive position, and a consideration of how his account has the ability to provide for conscious affordance perception in the case of non-human animals. (shrink)

The article provides a summary of the author's book Understanding People: Normativity and Rationalizing Explanation (Oxford: Clarendon Press, 2004). It details three areas in which the notion of a normative commitment is made central. These are (1) believing and intending, (2) practices conceived as essentially rule-governed activities, and (3) meaning and concepts. An account is given of how we may best explain the commitments incurred by beliefs and intentions. It is held that those states are themselves essentially normative. A problem (...) of the relevance of rationalizing to rationalizing explanation is explored and the relation between normative commitments and normative reasons is discussed. (shrink)

Contemporary emotion research typically takes the phenomenon of emotion to be exhausted by a class of mental events that are intentional, conscious, and related to certain sorts of behaviour. Moreover, other affective phenomena, such as moods, are also considered to be relatively short-term, episodic, or occurrent states of the subject undergoing them. Emotions, and other putative emotional phenomena that common-sense takes as long-lasting, non-episodic, or dispositional are things that both philosophers and scientists sometimes recognise, but that are relatively neglected in (...) comparison to emotional episodes. This thesis aims at showing that this neglect is unjustified. I will argue that there is a class of entities, 'sentiments'—broadly characterised as dispositions to undergo emotional episodes—that are irreducible to emotional episodes or collections thereof and have properties that make them a suitable target of study by the emotion researcher.In the first chapter, I argue that an analysis of caring as a pattern of emotional episodes, while more plausible than alternative, non-emotional accounts, faces a number of counterexamples that motivate the search for an account of caring as related in a certain way to emotions but as irreducible to them. I argue that a dispositional account, according to which dispositions are conceived as distinct from their manifestations, is an account for which a strong case can be made.The second chapter is dedicated to defending a modest form of realism about dispositions in general and psychological dispositions in particular. According to realism, dispositions are genuine properties that, although perhaps reducible to non-dispositional properties, cannot be re-described in terms of events only. In the third chapter, I show in what ways emotional dispositions can positively contribute to the explanation of the occurrence of emotional episodes. In the fourth chapter, I argue that caring, understood as a species of sentiment, is not to be construed as a mere disposition to produce certain events; rather, we should allow that certain dispositions are genuinely mental or psychological. Assuming realism about the mental, I argue that some dispositions are mental in a way that others are not. I suggest that being intentional is the property that makes psychological dispositions genuinely mental. I end the chapter by drawing a connection between caring and the notion of character. On my view, caring is at least a necessary ingredient of certain character traits, in particular the virtues. In chapter five, I tackle a recent form of empirically informed scepticism about character and argue, on the basis of general considerations about psychological dispositions, that the sceptic’s case is not as strong as she makes out. Finally, in chapter six, I argue that at least certain forms of sentiment, for example romantic love, can be genuinely supported by reasons, thereby suggesting a way they can contribute to the value of our lives. Overall, the aim of this thesis is to establish the respectability of sentiments in a sophisticated account of the mind. (shrink)

The causal theory of properties is standardly combined with a realist's ontology of universals or tropes. In this paper, I consider an uncharted alternative – a nominalist causal theory of properties. I discuss advantages and disadvantages of the resulting theory of properties, and explore the Rylean understanding of causal powers that emerges.

In order to tackle the question posed by the title – notoriously answered in the positive, among others, by Heisenberg, Margenau, Popper and Redhead – I first discuss some attempts at distinguishing dispositional from non-dispositional properties, and then relate the distinction to the formalism of quantum mechanics. Since any answer to the question titling the paper must be interpretation-dependent, I review some of the main interpretations of quantum mechanics in order to argue that the ontology of theories regarding “wave collapse” (...) as a genuine physical process could be interpreted as being irreducibly dispositional. In non-collapse interpretations, on the contrary, the appeal to dispositions is simply a way to reformulate the predictive content of the algorithm of the theory in a fancier metaphysical language. (shrink)

A theory of causation with ‘tendencies’ as causal con- nections is proposed. Not, however, as ‘necessary connec- tions’: causes are not sufficient, they do not necessitate their effects. The theory is not an analysis of the concept of causation, but a description of what is the case in typical cases of causation. Therefore it does not strictly contradict any analysis of the concept of causation, not even reduct- ive ones. It would even be supported by a counterfactual or a probabilistic (...) analysis. (shrink)

In accounting for the objects and properties of the manifest world, issues include the fundamentality, causal efficacy and ontological robustness of the dispositional versus the non-dispositional. Concerning fundamentality, the available options seem to be that: dispositional and categorical properties are different kinds, both fundamental; dispositional and categorical properties are one and the same, and fundamental; only categorical properties are fundamental while dispositional properties, if they exist, are higher-order; and only dispositional properties are fundamental while categorical properties, if they exist, are (...) higher-order. The viability of option, a pure-power ontology, has met detracting arguments from several quarters. This paper outlines why the fourth option appears nonetheless attractive and provides a defence for its credibility by suggesting how the manifestly qualitative world can be explained without recourse to fundamental categorical properties. (shrink)