In many judicial systems, confessions are a requirement for criminal conviction. Even if confessions are intrinsically convincing, this might not entirely explain why they play such a paramount role. In addition, it has been suggested that confessions owe their importance to their legitimizing role, explaining why they could be required even when other evidence has convinced a judge. But why would confessions be particularly suited to justify verdicts? One possibility is that they can be more easily transmitted from one individual (...) to the next, and thus spread in the population without losing their convincingness. 360 English-speaking participants were asked to evaluate the convincingness of one of three justifications for a verdict, grounded either in a confession, eyewitnesses, or circumstantial evidence, and to pass on that justification to another participant, who performed the same task. Then, 240 English-speaking participants evaluated the convincingness of some of the justifications produced by the first group of participants. Compared to the other justifications, justifications based on confessions lost less of their convincingness in the transmission process. Modeling pointed to the most common forms the justifications would take as they are transmitted, and results showed that the most common variant of the justification based on a confession was more convincing. (shrink)

The Condorcet Jury Theorem, along with empirical results, establishes the accuracy of majority voting in a broad range of conditions. Here we investigate whether naïve participants (in the U.S. and...

How many individuals are present where we see a pregnant individual? Within a substance ontological framework, there are exactly two possible answers to this question. The standard answer—two individuals—is typically championed by scholars endorsing the predominant Containment View of pregnancy, according to which the foetus resides in the gestating organism like in a container. The alternative answer—one individual—has recently found support in the Parthood View, according to which the foetus is a part of the gestating organism. Here I propose a (...) third answer: a pregnant individual is neither two individuals nor one individual but something in between one and two. This is because organisms are better understood as processes than as substances. With a special focus on the Parthood View, I explain why a Process View of pregnancy, according to which a pregnant individual is a bifurcating hypercomplex process, surpasses the substance ontological approaches. (shrink)

According to dispositional realism, or dispositionalism, the entities inhabiting our world possess irreducibly dispositional properties – often called ‘powers’ – by means of which they are sources of change. Dispositionalism has become increasingly popular among metaphysicians in the last three decades as it offers a realist account of causation and provides novel avenues for understanding modality, laws of nature, agency, free will and other key concepts in metaphysics. At the same time, dispositionalism is receiving growing interest among philosophers of science. (...) This reflects the substantial role scientific findings play in arguments for dispositionalism which, as a metaphysics of science, aims to elucidate the very foundations of science. In this introductory chapter, I give an overview of the state of the debate and explain the twofold aim of the present collection of essays which is (i) to explore the ontological commitments of dispositionalism and (ii) to discuss these against the background of latest scientific research, by bringing together perspectives from both metaphysics and the philosophy of science. I finally provide a summary of this intellectual journey. (shrink)

Stephen Mumford has argued that dispositionalists ought to be endurantists because perdurantism, by breaking down persisting objects in sequences of static discrete existents, is at odds with a powers metaphysics. This has been contested by Neil Williams who offers his own version of ‘powerful’ perdurance where powers function as links between the temporal parts of persisting objects. Weighing up the arguments given by both sides, I show that the profile of ‘powerful’ persistence crucially depends on how one conceptualises the processes (...) involved in the manifestation of powers. As this turns out not to be determined per se by subscribing to some view labelled ‘powers view’, further discussion is needed as to what processes are and to what kind of process theory a powers metaphysics should commit itself in order to be convincing. I defend the claim that dispositionalism is best combined with a version of process ontology that is indeed incompatible with a perdurantist analysis of persistence. However, I argue that this does not imply that dispositionalists ought to be endurantists. (shrink)

Neurobiology studies mechanisms of cell signalling. A key question is how cells recognise specific signals. In this context, olfaction has become an important experimental system over the past 25 years. The olfactory system responds to an array of structurally diverse stimuli. The discovery of the olfactory receptors (ORs), recognising these stimuli, established the olfactory pathway as part of a greater group of signalling mechanisms mediated by G-protein-coupled receptors (GPCRs). GPCRs are the largest protein family in the mammalian genome and involved (...) in numerous fundamental physiological processes. The OR family exhibits two characteristics that make them an excellent model system to understand GPCRs: its size and the structural diversity of its members. Research on the OR binding site investigates what amino acid sequences determine the receptor-binding capacity. This promises a better understanding of how the basic genetic makeup of GPCRs relates to their diversification in ligand-binding capacities. (shrink)

What does it take for a scientific model to represent? Scientific models have received a great deal of attention in recent philosophical literature. Following Morgan and Morrison’s account of “Models as Mediators”, analysis of how models represent has changed from questioning what properties of models can be said to correlate with the world to asking how models are used to relate to an intended target-system. This turn to a practice-oriented approach of understanding models was a response to a general philosophical (...) problem that attends the empirical application of scientific representations such as models. This problem is twofold. Models, on the one hand, are often said to make false claims about the world.. (shrink)

Theories of perception have traditionally dismissed the sense of smell as a notoriously variable and highly subjective sense, mainly because it does not easily fit into accounts of perception based on visual experience. So far, philosophical questions about the objects of olfactory perception have started by considering the nature of olfactory experience. However, there is no philosophically neutral or agreed conception of olfactory experience: it all depends on what one thinks odors are. We examine the existing philosophical methodology for addressing (...) our sense of smell: on the one hand appeals to phenomenology that focus on the experiential dimensions of odor perception and on the other approaches that look at odor sources and their material dimensions. We show that neither strategy provides enough information to account for the human sense of smell and argue that the inclusion of the missing dimension of biology, with its concern for the function (or functions) of olfaction, provides the means to develop a satisfactory and empirically informed philosophy of smell. (shrink)

Analytic metaphysics has recently discovered biology as a means of grounding metaphysical theories. This has resulted in long-standing metaphysical puzzles, such as the problems of personal identity and material constitution, being increasingly addressed by appeal to a biological understanding of identity. This development within metaphysics is in significant tension with the growing tendency amongst philosophers of biology to regard biological identity as a deep puzzle in its own right, especially following recent advances in our understanding of symbiosis, the evolution of (...) multi-cellular organisms and the inherently dynamical character of living systems. Moreover, and building on these biological insights, the broadly substance ontological framework of metaphysical theories of biological identity appears problematic to a growing number of philosophers of biology who invoke process ontology instead. This volume addresses this tension, exploring to what extent it can be dissolved. For this purpose, the volume presents the first selection of essays exclusively focused on biological identity and written by experts in metaphysics, the philosophy of biology and biology. The resulting cross-disciplinary dialogue paves the way for a convincing account of biological identity that is both metaphysically constructive and scientifically informed, and will be of interest to metaphysicians, philosophers of biology and theoretical biologists. (shrink)

Empirical success is a central criterion for scientific decision-making. Yet its understanding in philosophical studies of science deserves renewed attention: Should philosophers think differently about the advancement of science when they deal with the uncertainty of outcome in ongoing research in comparison with historical episodes? This paper argues that normative appeals to empirical success in the evaluation of competing scientific explanations can result in unreliable conclusions, especially when we are looking at the changeability of direction in ongoing investigations. The challenges (...) we encounter arise from the inherent dynamics of disciplinary and experimental objectives in research practice. In this paper we discuss how these dynamics inform the evaluation of empirical success by analyzing three of its requirements: data accommodation, instrumental reliability, and predictive power. We conclude that the assessment of empirical success in developing inquiry is set against the background of a model’s interactive success and prospective value in an experimental context. Our argument is exemplified by the analysis of an apparent controversy surrounding the model of a quantum nose in research on olfaction. Notably the public narrative of this controversy rests on a distorted perspective on measures of empirical success. (shrink)

Does the sense of smell involve the perception of odor objects? General discussion of perceptual objecthood centers on three criteria: stimulus representation; perceptual constancy; and figure-ground segregation. These criteria, derived from theories of vision, have been applied to olfaction in recent philosophical debates about psychology. An inherent problem with such framing of olfactory objecthood is that philosophers explicitly ignore the constitutive factors of the sensory systems that underpin the implementation of these criteria. The biological basis of odor coding is fundamentally (...) different from the coding principles of the visual system. This article analyzes the three measures of perceptual objecthood against the biological background of the olfactory system. It contrasts the coding principles in olfaction with the visual system to show why these criteria of objecthood fail to be instantiated in odor perception. The argument demonstrates that olfaction affords perceptual categorization without the need to form odor objects. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:A Far-Future Paleontology: The Baffling Case of Brunaspis enigmaticaAnne-Sophie Milon (bio) and Jan Zalasiewicz (bio)Paleontologists, for more than two centuries, have studied and debated the petrified remains of plants and animals that have evolved over the past three billion years on Earth. They have argued over the grand concepts that they reveal, such as biological evolution and climate change, and also the many specific questions thrown up by (...) these relics: was such-and-such a shell, a mollusk, or an arthropod? Did this fossil fish live high up in the water, among the plankton, or grub in the mud on the sea floor?These studies have for many paleontologists been a blessedly human-free zone, detached from the busy realities of our everyday lives. The science of paleontology, though, is simply one obscure part of a burgeoning and rapidly evolving technosphere that underpins our lives, and that is now evolving millions of new kinds of fossils—technofossils—far more rapidly than ever happened in biological evolution. Many of these objects will, quite certainly, become part of Earth’s future fossil record.If such an endeavor as paleontology were ever to arise again, in a distant post-human future, how would its practitioners deal with these bizarre relics?We provide a preview, on the following pages, of just one such enigma, and how it may be resolved (or not) by our puzzled disciplinary descendants. [End Page 31] Click for larger view View full resolution[End Page 32] Click for larger view View full resolution[End Page 33] Click for larger view View full resolution[End Page 34] Click for larger view View full resolution[End Page 35] Click for larger view View full resolution[End Page 36] Click for larger view View full resolution[End Page 37] Click for larger view View full resolution[End Page 38] Click for larger view View full resolution[End Page 39] Click for larger view View full resolution[End Page 40] Click for larger view View full resolution[End Page 41] Click for larger view View full resolution[End Page 42] Click for larger view View full resolution[End Page 43] Click for larger view View full resolution[End Page 44]Anne-Sophie Milon Anne-Sophie Milon is an artist-researcher who applies her illustration skills (HEAR, Strasbourg, France, 2010) and 2D traditional animation (UWE, Bristol, UK, 2012) to political arts (SPEAP, Sciences Po, 2015) and science and technology studies (HSTS, EHESS, 2022). For the past ten years, she has translated geological narratives–and ordinary ones for Earth sciences–into extraordinary plots for the uninitiated, including the humanities. She is currently working with Jan Zalasiewicz on a play, The Petrified Museum (2024), based on the British Geological Survey (Keyworth, UK), and on a PhD project in science and technology studies looking at limestones’ agencies in extractive industry practices (2025). She regularly collaborates with researchers from the Anthropocene Working Group: The Cosmic Oasis (Oxford University Press, 2022), “The Victims of Carbon Dioxide are Starting to Appear” in Feral Atlas (2021), and The Epochs of Nature (University of Chicago Press, 2016).Jan Zalasiewicz Jan Zalasiewicz is Emeritus Professor of Paleobiology at the University of Leicester. He was formerly a field geologist and paleontologist with the British Geological Survey, involved in the geological mapping of eastern England and central Wales. His interests include Early Paleozoic fossils, notably the graptolites (a kind of extinct zooplankton), mud and mudrocks, the Quaternary Ice Ages, the nature of geological time, and the geology made by humans. In recent years, he has helped develop the concept of an Anthropocene epoch. He enjoys writing popular science articles and books, and being involved in art/science projects.Copyright © 2023 Johns Hopkins University Press and SubStance, Inc... (shrink)

Human persons exist longer than a single moment in time; they persist through time. However, so far it has not been possible to make this natural and widespread assumption metaphysically comprehensible. The philosophical debate on personal identity is rather stuck in a dilemma: reductionist theories explain personal identity away, while non-reductionist theories fail to give any informative account at all. This chapter argues that this dilemma emerges from an underlying commitment, shared by both sides of in the debate, to an (...) ontology which that gives the priority to static unchanging things. The claim defended here is that the dilemma of personal identity can be overcome if we acknowledge the biological nature of human persons and switch to a process- ontological framework that takes process and change to be ontologically primary. Human persons are biological higher-order processes, rather than things, and their identity conditions can be scientifically investigated. (shrink)

The argument from potentiality for embryo protection relies on the assumption of a specific developmental potential of human embryos: as human embryos under normal conditions naturally developing into beings whose strong moral status is uncontroversial, namely into human persons, they likewise enjoy strong moral status. In my paper, I endeavour to spell out the ontological foundations of the argument from potentiality and to discuss them critically in the light of new empirical findings in embryology. Particular attention is hereby paid to (...) recent attempts to analyse the relevant notion of potentiality in terms of dispositions possessed by human embryos. I argue that, putting aside inappropriate essentialist speculations, there is no straightforward disposition of an embryo to become a person; such a disposition, if any, being rather successively generated in a multi-factored, highly context-sensitive process of biological development. (shrink)

Do human embryos have a disposition to personhood? This has been argued within recent attempts to reformulate the classical argument from potentiality for the protection of human embryos with the help of the concept of disposition. In this paper, I analyse the central ontological premise of this new approach and show that any hopes of rehabilitating in dispositionalist terms the idea of a potential to personhood inherent in human embryos are mistaken. The dispositionalist version of the potentiality argument navigates in (...) same metaphysical waters as its predecessor and, hence, collides just the same with biological facts concerning human embryogenesis. (shrink)

What is metaphysics? And what do we need it for? In this paper I argue that if we answer the first question appropriately, the second question becomes pointless. To understand what metaphysics is means to understand what it is for. I shall propose that metaphysics, as a philosophical discipline, is the addressing of reality with respect to the intelligibility of reality as a whole and, i.e., the addressing of reality's being-addressed in various contexts (everyday and scientific). Insofar as reason is (...) that which performs this ubiquitous addressing of reality, metaphysics – the addressing of the addressing of reality – turns out to be a self-addressal of reason. I shall rebut sceptical objections to this proposal, which are nourished by realist convictions, by emphasising an interesting and constructive metaphysical thesis entailed in the proposed understanding of metaphysics. At the same time, I shall oppose to idealist simplifications of the proposal by means of some reflections on the only legitimate source of a general (as opposed to special) critique of metaphysics: the questionability of the belief in a perfect intelligibility of reality. (shrink)

Philosophical discussion about the reality of sensory perceptions has been hijacked by two tendencies. First, talk about perception has been largely centered on vision. Second, the realism question is traditionally approached by attaching objects or material structures to matching contents of sensory perceptions. These tendencies have resulted in an argumentative impasse between realists and anti-realists, discussing the reliability of means by which the supposed causal information transfer from object to perceiver takes place. Concerning the nature of sensory experiences and their (...) capacity to provide access to reality, this article challenges the standard categories through which most arguments in this debate have been framed to date. Drawing on the underexplored case of olfaction, I first show how the details of the perception process determine the modalities of sensory experiences. I specifically examine the role of measurement and analyze its influence on the characterization of perceptions in olfaction. My aim is to argue for an understanding of perception through a process view, rather than one pertaining to objects and properties of objects. (shrink)

This paper tells the story of G-protein coupled receptors, one of the most important scientific objects in contemporary biochemistry and molecular biology. By looking at how cell membrane receptors turned from a speculative concept into a central element in modern biochemistry over the past 40 years, we revisit the role of manipulability as a criterion for entity realism in wet-lab research. The central argument is that manipulability as a condition for reality becomes meaningful only once scientists have decided how to (...) conceptually coordinate measurable effects distinctly to a specific object. We show that a scientific entity, such as GPCRs, is assigned varying degrees of reality throughout different stages of its discovery. The criteria of its reality, we further claim, cannot be made independently of the question about how this object becomes a standard by which the reality of neighbouring elements of enquiry is evaluated. (shrink)

In recent years, an increasing number of theoretical biologists and philosophers of biology have been opposing reductionist research agendas by appealing to the concept of biological autonomy which draws on the older concept of autopoiesis. In my paper, I investigate some of the ontological implications of this approach. The emphasis on autonomy and autopoiesis, together with the associated idea of organisational closure, might evoke the impression that organisms are to be categorised ontologically as substances: ontologically independent, well-individuated, discrete particulars. However, (...) I argue that this is mistaken. Autopoiesis and biological autonomy, properly understood, require a rigorous commitment to a process ontological view of life. (shrink)

Do sensory measurements deserve the label of “measurement”? We argue that they do. They fit with an epistemological view of measurement held in current philosophy of science, and they face the same kinds of epistemological challenges as physical measurements do: the problem of coordination and the problem of standardization. These problems are addressed through the process of “epistemic iteration,” for all measurements. We also argue for distinguishing the problem of standardization from the problem of coordination. To exemplify our claims, we (...) draw on olfactory performance tests, especially studies linking olfactory decline to neurodegenerative disorders. (shrink)

Is the sense of smell a source of aesthetic perception? Traditional philosophical aesthetics has centered on vision and audition but eliminated smell for its subjective and inherently affective character. This article dismantles the myth that olfaction is an unsophisticated sense. It makes a case for olfactory aesthetics by integrating recent insights in neuroscience with traditional expertise about flavor and fragrance assessment in perfumery and wine tasting. My analysis concerns the importance of observational refinement in aesthetic experience. I argue that the (...) active engagement with stimulus features in perceptual processing shapes the phenomenological content, so much so that the perceptual structure of trained smelling varies significantly from naive smelling. In a second step, I interpret the processes that determine such perceptual refinement in the context of neural decision-making processes, and I end with a positive outlook on how research in neuroscience can be used to benefit philosophical aesthetics. (shrink)

What are persons? There are two traditional answers: the relation model of person according to which a person is nothing more than a function of her relationships to other persons and the substance model which construes the person as persisting independently of relations and accidental properties. In my paper, I explore two interesting intersections of these models occurring in Augustine's speculative doctrine of trinity and in Heidegger’s early Theory of Dasein. Are Augustine’s and Heidegger’s conceptions of person convincing reconciliations of (...) the relation model and the substance model of person and how do they compare to each other? (shrink)

What are persons and how do they exist? The predominant answer to this question in Western metaphysics is that persons, human and others, are, and exist as, substances, i.e., ontologically independent, well-demarcated things defined by an immutable (usually mental) essence. Change, on this view, is not essential for a person's identity; it is in fact more likely to be detrimental to it. In this chapter I want to suggest an alternative view of human persons which is motivated by an appreciation (...) of their biological nature. Organisms, human and non-human, are dynamical systems that for their existence and persistence depend on an ongoing interaction with the environment in which they are embedded. Taking seriously this most fundamental human condition leads to recognising human persons as processes, i.e., as entities for the identity of which change is essential. It also implies a holistic view of the human mind. (shrink)

Eric Olson distinguishes his animalistic account of transtemporal personal identity from the apparently similar Bodily Criterion, among other things, by accusing the latter of being contaminated with Cartesian implications owing to its usage of the term ‚body‘. In contrast, Olson argues, Animalism is able to avoid these implications by substituting the concept of body for the concept of organism, which makes Animalism not only a distinct position, but also the better alternative to the Bodily Criterion. The paper critically reconstructs Olson’s (...) charge of Cartesianism against the Bodily Criterion, thereby differentiating between several variants of it. This eventually adds up to an evaluation of how suitable these criticisms are for defending Animalism at the expense of the Bodily Criterion. (shrink)

In this monograph, I systematically analyse the debate in recent analytic metaphysics, with a special focus on recent biologically inspired (so-called animalist) theories of personal identity. I argue that the debate is stuck in a dilemma which is neither harmless nor new: the modern antagonism between the reductionist elimination of personal identity on the one hand and its non-reductionist mystification on the other rather repeats the antagonism between rationalist dogmatism and empirical scepticism in the 18th century’s debates on the soul. (...) This latter antagonism has been extensively examined by Kant who also sought for ways to overcome the dilemma. The systematic analysis of the modern ‘analytic’ debate is therefore followed by a presentation and critical discussion of the constructive approaches taken by Kant and post-Kantian ‘continental’ philosophers. From a Kantian perspective, what we are confronted with is a fundamental dialectic, originating in the very structure of human reason and threatening to turn metaphysics altogether into an arena of fruitless battles. The possibility of a satisfactory metaphysical account of transtemporal personal identity reveals itself to be contingent on the possibility of a ‘good’ metaphysics able to overcome that dialectic. (shrink)

Der Beitrag stellt die These auf, dass der Einfluss digitaler Bilder auf visuelle Kultur nur verstanden werden kann, wenn die spezifische Materialität dieser Artefakte bedacht wird. Anhand einer Analyse des berühmten Utah teapot werden fünf materiale Schichten unterschieden, darunter Herstellung, Codierung, forensische und epistemische Materialität, sowie der Begriff der Trans-Materialität. Jede Schicht wird in Beziehung zu theoretischen Konzepten von Materialität in Medienwissenschaften, Kunstgeschichte, Computerwissenschaft und Anthropologie diskutiert. This article argues that the impact of digital images on visual culture can only (...) be understood if the specific materiality of these artefacts is taken into account. An analysis of the famous distinguishes five material layers, including making, coding, forensic and epistemic materiality, as well as the notion of trans-materiality. Each layer is developed in relation to theoretical concepts of materiality in media studies, art history, computer science, and anthropology. (shrink)

This paper aims to motivate a new beginning in metaphysical thinking about persistence by drawing attention to the disappearance of change in current accounts of persistence. I defend the claim that the debate is stuck in a dilemma which results from neglecting the constructive role of change for persistence. Neither of the two main competing views, perdurantism and endurantism, captures the idea of persistence as an identity through time. I identify the fundamental ontological reasons for this, namely the shared commitment (...) to what I call ‘thing ontology’: an ontology that gives the ontological priority to static things. I conclude by briefly indicating how switching to a process ontological framework that takes process and change to be ontologically primary may allow for overcoming the dilemma of persistence. (shrink)

For the most part, current reflections on the social seem to overemphasize either homogeneity (society/nation-state, modernization/globalization) or heterogeneity (sociality, cosmopolitanism). Against this, here the argument is put forward that it is appropriate to think of the social as consisting of aspects of homogeneity or shared frames of reference and aspects of heterogeneity at the same time. This thought is developed particularly in contrast to normative concepts such as Bauman's sociality—republicanism nexus or Beck and Grande's ideas on European cosmopolitanism. With the (...) help of concepts such as sociation, glocalization and conflict, a basis will be developed for the elaboration of particular socials (e.g. Europe) as a general social theory. This avoids falling into normative traps, which are usually risky when starting out from a historical particularity to explain current and future structures and features of notions such as European society. (shrink)

This article discusses Dewey’s The Public and Its Problems (1927), Ethics (1932), “Theory of valuation” (1939), Art as Experience (1934) and A Common Faith (1934), for the socio-anthropological analysis of the religious, in a context of diversity and anxiety about identities. This pragmatist approach enables to consider religious in the making, experience and self-construction. The concept of ideal, taking into account intersubjectivity and context, allows treating aspirations and ideals. Finally, the idea of public and pre-political, permits to pay attention to (...) processes which are different from differentiation and where people contribute to the common good from their specific (minority) situation. (shrink)

This paper revisits the concept of fiction employed in recent debates about the reality of theoretical entities in the philosophy of science. From an anti-realist perspective the dependence of evidence for some scientific entities on mediated forms of observation and modelling strategies reflects a degree of construction that is argued to closely resemble fiction. As a realist’s response to this debate, this paper provides an analysis of fictional entities in comparison to real ones. I argue that the distinction between fictional (...) and real entities is reflected in their different relations toward their representations. This is particularly evident when it comes to the investigation of properties not explicitly given in a representation but that rely on knowledge external to it. A comparison of the resulting difference in the interpretation of fictional and real entities is then shown to provide guidelines for the assessment of when a realist claim can be made for model-based inferences to theoretical entities in science. At the end of this paper I advocate a pluralistic view on scientific realism by showing that representational pluralism, far from posing a problem for a realist interpretation of scientific practice, serves as an indicator for the reality of scientific entities. (shrink)

Life has evolved; and so must have consciousness, or subjective experience, as found in living beings, Eva Jablonka and Simona Ginsburg contend. In their target article, which summarises the main theses of their seminal book The Evolution of the Sensitive Soul, the authors put forward an evolutionary account of consciousness that builds upon the intimate connection between consciousness and life without, however, equating the two. Instead, according to Jablonka & Ginsburg, there was life before there was consciousness, and there are (...) still living beings without consciousness. Here I offer some metaphysical considerations in favour of a more inclusive notion of consciousness than Jablonka & Ginsburg’s. These considerations turn on the role played by metabolism and agency in the processual constitution of living beings as well as on the continuum between sensation and perception. Rather than postulating a mindless inwardness in presumably non-conscious organisms, we ought to recognise the constitutive experiential nature of life, rooted in its intrinsic purposiveness. (shrink)

Perfumes embody a chemical record of style and technology. Blurring the boundary between what counts as natural and artificial in both a material and a perceptual sense, perfumery presents us with a domain of multiple disciplinary identities relevant to social studies: art, craft, and techno‐science. Despite its profound impact as a cultural practice, perfume has seldom featured in historical scholarship. The reason for this neglect is its inherently qualitative dimension: perfume cannot be understood via codified representation but requires direct acquaintance (...) with its sensory and material basis. The historical study of perfumery thus necessitates an experimental approach that comes not without challenge. This article looks at contemporary recreations of old perfumes to identify the difficulties involved in the experimental recreation of fragrances as sensory and performative artifacts. We highlight the need for a reconceptualization of methodology for inconcrete objects of study as part of the broader interest in experimental approaches to the humanities. (shrink)

How much does stimulus input shape perception? The common-sense view is that our perceptions are representations of objects and their features and that the stimulus structures the perceptual object. The problem for this view concerns perceptual biases as responsible for distortions and the subjectivity of perceptual experience. These biases are increasingly studied as constitutive factors of brain processes in recent neuroscience. In neural network models the brain is said to cope with the plethora of sensory information by predicting stimulus regularities (...) on the basis of previous experiences. Drawing on this development, this chapter analyses perceptions as processes. Looking at olfaction as a model system, it argues for the need to abandon a stimulus-centred perspective, where smells are thought of as stable percepts, computationally linked to external objects such as odorous molecules. Perception here is presented as a measure of changing signal ratios in an environment informed by expectancy effects from top-down processes. (shrink)

Representational drift is a phenomenon of increasing interest in the cognitive and neural sciences. While investigations are ongoing for other sensory cortices, recent research has demonstrated the pervasiveness in which it occurs in the piriform cortex for olfaction. This gradual weakening and shifting of stimulus-responsive cells has critical implications for sensory stimulus–response models and perceptual decision-making. While representational drift may complicate traditional sensory processing models, it could be seen as an advantage in olfaction, as animals live in environments with constantly (...) changing and unpredictable chemical information. Non-topographical encoding in the olfactory system may aid in contextualizing reactions to promiscuous odor stimuli, facilitating adaptive animal behavior and survival. This article suggests that traditional models of stimulus–(neural) response mapping in olfaction may need to be reevaluated and instead motivates the use of dynamical systems theory as a methodology and conceptual framework. (shrink)

Recent decades have seen an increasing tendency to exclude the phenomenon of personality from the metaphysical investigation of personal identity. We are advised not to confuse personal identity as a philosophical subject, namely as the metaphysical issue of specifying what it is that makes a person staying numerically self-identical over time, with the psychological question of 'personal identity' which asks what makes someone the individual person they are with their particular character and history. However, one might be unsatisfied with this. (...) If (as common sense takes for granted) persons are to be conceived as beings possessing a personality, should there not be some more than superficial connection between personality and personal identity in the philosophical sense? This paper investigates this question by revealing the guiding - metaphysical assumptions behind the claim that personality and personal identity must be treated separately as well as by presenting the metaphysical alternative brushed aside by the adherents of this claim. In fact, I argue, there are two opposing views of the relation between personality and personal identity, these being grounded in two opposing metaphysical models of what a person is: the substance model and the bundle model of the person. However, it turns out that ultimately both competing models fail for fundamental reasons, which raises the question of what a way out of the dilemma might look like. (shrink)

Short piece for The Philosophers' Magazine on why philosophers should pay attention to olfaction.

Machine metaphors abound in life sciences: animals as automata, mitochondria as engines, brains as computers. Philosophers have criticized machine metaphors for implying that life functions mechanically, misleading research. This approach misses a crucial point in applying machine metaphors to biological phenomena: their reciprocity. Analogical modeling of machines and biological entities is not a one-way street where our understanding of biology must obey a mechanical conception of machines. While our understanding of biological phenomena undoubtedly has been shaped by machine metaphors, the (...) resulting insights have likewise altered our understanding of what machines are and what they can do. (shrink)