Perception and the Mind

This paper presents a computational framework that models the brain as a maze-like network for tumor localization and surgical planning. Starting from an abstract structure without prior information about healthy or malignant regions, we generate a voxel-based maze. Once MRI data is available, voxel weights are assigned according to tumor probability. Multiple maze variants are generated and analyzed using A* and Minimum Spanning Tree (Prim) algorithms. This allows the identification of critical voxels—points where malignant tissue is likely concentrated—providing precise targets (...) for neurosurgery. (shrink)

This paper introduces a comprehensive framework for modeling neural activity using a Karnaugh-map-inspired (Carno) representation, encoded in binary format for computational efficiency. The approach integrates an 8-state neuron model with polar coordinate mapping, vectorial synaptic aggregation interpreted as electromagnetic vector fields, and multimodal brain imaging data from magnetic resonance imaging (MRI), functional MRI (fMRI), and diffusion tensor imaging (DTI). The model incorporates probabilistic synaptic states, hyperbolic forced states arising from field instabilities, and multidimensional cortical visualizations. Designed for clinical applicability in (...) neurosurgery, the framework facilitates integration with established software platforms such as 3D Slicer and Brainlab, supporting real-time tumor localization, three-dimensional cortical mapping, and AI-assisted simulations for functional-preserving surgical interventions. (shrink)

Universal perceptual structure, diverse implementation.

This article seeks to make an ontological distinction, of ethical and theological importance, between artificial intelligence and human beings. It will be demonstrated that humans possess phenomenal consciousness and therefore possess selves, while artificial intelligence at most satisfies a functionalist account of consciousness and therefore does not possess a self. That human consciousness is phenomenal will be argued for by examining how subjects learn and apply abstract concepts. Moreover, it will be argued that phenomenal experience entails a self, which is (...) not emergent. Because humans have selves and AI systems do not, AI is not identical to human beings. (shrink)

This book offers an in-depth analysis of the role that 'intentional horizons' play in our visual experiences of complete three-dimensional objects. In doing so it critically evaluates a range of proposals concerning how best to theorize the respect in which our visual experiences include some form of awareress of the occluded or otherwise hidden parts of their objects. It proposes a novel Modal-Ability view, which emerges as the most plausible account of this 'possibilistic' compontent of spatial perception.

Consciousness Structured Field Theory (CSFT) - This paper explores a core principle of Consciousness Structured Field Theory (CSFT): the inseparability of perception and consciousness. It expands upon the foundational claim that perception is not the mechanical reception of data but a subjective, experiential event made possible only through a conscious field. The implications of this distinction reach into neuroscience, artificial intelligence, and metaphysics.

Consider two experiences, one a veridical perceptual experience of a black cube in front of one, and a matching hallucinatory experience. From the perspective of the subject undergoing these experiences they at least can be phenomenologically indistinguishable. Call this the phenomenological indistinguishability claim (PI for short). My aim in this paper is to argue for a distinctive view which I call phenomenological disjunctivism, drawing on the works of classical phenomenologist Edmund Husserl. Phenomenological disjunctivism significantly qualifies the PI claim, and in (...) doing so is able to establish, through phenomenological analysis of the relevant experiences, an intrinsic difference in kind between veridical perception and (matching) hallucination, that is a difference in ‘essence’ purely on phenomenological grounds. Phenomenological disjunctivism accepts that veridical perception and hallucination either are or at least can be phenomenologically indistinguishable at a time but argues that due to a key difference in the possibilities of fulfilment of their ‘horizon structure’ are nonetheless phenomenologically distinguishable as fundamentally different types of experience over time (i.e., diachronically). This is the key Husserlian insight I will be reconstructing and attempting to make sense of in an articulation of phenomenological disjunctivism. (shrink)

Some kinds are both socially constructed and perceptible, such as gender and race. However, this gives rise to a puzzle that has been largely neglected in social constructionist accounts: how does culture shape and bias what we perceive? I argue that perceptual learning is the best explanation of our ability to perceive social kinds, in comparison to accounts that require a person acquire beliefs, theories, or concepts of the kind. I show how relatively simple causal factors known to influence perceptual (...) learning in the laboratory can be extended to understand how culture shapes and biases perception. This account makes clear that the process of perceptual enculturation begins at a very early age, and does not in most cases require background beliefs on the part of the learner: the causal pathways by which perceptual learning occur suffice. It has significance for our understanding of how socially constructed kinds are culturally transmitted, as well as for how such kinds might be altered through interventions. (shrink)

What is perception? What is, if any, its content? What is the contribution of perception to knowledge? This book addresses these questions clearly and directly. The chief thesis the author argues for is that perception has conceptual, propositional, and world-dependent content. After criticizing those theories of experience that conceive it as contentless (the causal-linkage approach and naïve realism), the book examines the nature of perceptual content. Here, the author critically scrutinizes different varieties of non-conceptualism and claims that the content of (...) experience is partly conceptual. Having established that thesis, the author defends the propositional-attitude view, according to which perceptual content is propositional in nature. A crucial step in the book comes when the author explores the world-dependent character of such content. He holds here that the content of experience is composed of concepts and the presented objects, such as they appear from the subject’s point of view and determined environmental conditions. This view allows him to state that perception provides non-inferential knowledge of the truth-makers of our judgments and beliefs. Furthermore, and importantly, that view sheds light on how the mind relates to the world. (shrink)

G. W. Leibniz on Making Knowledge Sensible · G. W. Leibniz’s contribution to logic and a propositional theory of truth, based on the idea that concepts are composed of definitional notes, has been considered the core of his philosophical system and metaphysics. However, Leibniz thought that there are other forms of knowledge that are perceptual and, therefore, non-propositional and non-conceptual. This essay explores forms of non-conceptual knowledge and argues that they depend on the imagination. Despite the distinction between conceptual and (...) non-conceptual forms of knowledge, there are two senses in which conceptual knowledge depends on non-conceptual knowledge : there is a constitutive sense in which non-conceptual knowledge has a constitutive function because it allows one to conceive of beings in concreto, and thus anchors human knowledge to reality ; there is a second sense in which non-conceptual knowledge has the function of making imaginable intellectual concepts that could not be other- wise represented by the human mind. The essay shows that these functions are interrelated. (shrink)

This paper sets forward a novel theory of temporal binding, a mechanism that integrates the temporal properties of sensory features into coherent perceptual experiences. Specifying a theory of temporal binding remains a widespread problem. The popular ‘brain time theory’ suggests that the temporal content of perceptual experiences is determined by when sensory features complete processing. However, this theory struggles to explain how perceptual experiences can accurately reflect the relative timing of sensory features processed at discrepant times. In contrast, ‘event time (...) theories’ suggest that the temporal content of perceptual experiences reflects the relative event time of external sensory features and that the brain accommodates differential processing times. We can formulate retrodictive and predictive versions of this theory. Retrodictive event time theories propose that we accommodate desynchronised processing retrodictively. Predictive event time theories propose that we accommodate desynchronised processing by predictively modelling the event time of sensory features. I argue that both views have strengths and weaknesses. This paper proposes a new hybrid theory that integrates these theories to accommodate these weaknesses. Firstly, I argue how retrodictions and predictions can interact in mutually beneficial ways to ensure speedy and accurate temporal binding. Secondly, I propose how attention plays a central role in flexibly selecting which contents get to be temporally bound. This theory can explain how prediction and retrodiction differentially affect temporal binding and, in turn, proposes a new way to understand temporal binding and has implications for how we should understand conscious experiences. (shrink)

This thesis is about perceptual experience, its subjective character, and how it is essentially structured. It focuses specifically on how the nature of perception is shaped not only by our acquaintance with the world but also by the very structure of experience itself. My central claim is that perceptual consciousness incorporates different aspects, some of which constitute the very way in which experiences are organized, sustained, and structured. Over the course of this thesis, I develop and defend an original account (...) of the nature of perceptual experience by integrating naïve realism, a prominent contemporary Anglophone theory of perception, with insights and ideas from the Phenomenological tradition. In particular, I argue that there are fruitful grounds for combining naïve realism and a phenomenologically grounded account of the essential structural features of experience (‘minimal self’, ‘temporality’, ‘anticipation’). Naïve realism holds that perception is fundamentally a matter of being in direct contact with some mind-independent entities. Proponents of naïve realism often emphasize the ‘object-dependent’ nature of perception. The appeal to the structural features of experience offers us a promising way to delineate the oft-overlooked ‘subject-dependent’ nature of perception and capture the phenomenological richness of our conscious experiential life. This thesis offers a rich, phenomenologically informed account of the nature of perception which in turn places us in a better position to understand the nature of hallucination. The integration of naïve realism and the structural approach to consciousness I develop in this thesis yields a novel solution to the problem of hallucination: structural disjunctivism. According to this view, the ‘partially overlapping’ psychological nature of perception and hallucination is accounted for in terms of their structural similarities and differences. I seek to show how detailed analyses and reflections on the structures of perceptual experience pave the way to reconceive the phenomenological basis of naïve realism. (shrink)

In the philosophical literature, it is customary to think of perception as being assessable with respect to epistemic norms. E.g., the whole discussion around disjunctivism, which is now often considered to be the dominant, if not the default position in philosophy of perception, is, by and large, framed and motivated by epistemological concerns about truth and falsity. This book argues that perception is normative in another, more fundamental sense. Perception is governed by norms that Doyon calls perceptual, that is, immanent (...) to its own structure. This does not mean that perceptual norms are cut-off from external facts; it rather means that they are constitutive moments of our experience of these facts. Perceptual norms are, in that sense, constitutive or enabling norms in that they establish what perception is. To articulate this view, he draws in the repertoire of the phenomenological tradition, in the work of Edmund Husserl and Maurice Merleau-Ponty in particular. Like Kant, both phenomenologists were concerned with the question of the unity of experience and sought to identify the conditions of possibility for having a perception, which they conceive not as a mere sensible experience of the outer world, but as a continuous and meaningful experience of reality. Unlike Kant, however, neither phenomenologist immediately identified these conditions with cognition or epistemic criteria. For both phenomenologists, perception has its own standards, its own conditions of possibility. Perception obtains when it unfolds concordantly or coherently; and when the perceptual progression corresponds to or is in harmony with one's goal or interest, perception can also be said to be optimal. From the phenomenological point of view, concordance (Einstimmigkeit) and optimality (Optimalität) are the two basic perceptual norms governing over perceptual experience, and much of the book is devoted to clarifying their meaning and to address the philosophical consequences that follow from this insight. (shrink)

Perception involves the processing of content or information about the world. In what form is this content represented? I argue that perception is widely compositional. The perceptual system represents many stimulus features (including shape, orientation, and motion) in terms of combinations of other features (such as shape parts, slant and tilt, common and residual motion vectors). But compositionality can take a variety of forms. The ways in which perceptual representations compose are markedly different from the ways in which sentences or (...) thoughts are thought to be composed. I suggest that the thesis that perception is compositional is not itself a concrete hypothesis with specific predictions; rather it affords a productive framework for developing and evaluating specific empirical hypotheses about the form and content of perceptual representations. The question is not just whether perception is compositional, but how. Answering this latter question can provide fundamental insights into perception. (shrink)

John McDowell’s Mind and World takes us on a philosophical journey leading from the concept of experience to the concept of tradition. It also traces a conceptual path from a Kantian to a Gadamerian problematic. In this paper, it is argued that a final step is missing in order to complete the conceptual arc of Mind and World and make the book come full circle: The Kantian conception of experience articulated on the first pages of of the book needs to (...) be integrated into the hermeneutic framework articulated on its last pages, transforming it into a more encompassing, fully hermeneutic conception. This can be achieved, I contend, by drawing on Hans-Georg Gadamer’s conception of experience in Truth and Method. I show that Gadamer’s conception of “dialectical experience” conceives of experience as an event, a process unfolding in time, and as inextricably intertwined with the notions of tradition and critique. Explaining this conception, I claim that it gives us reason to revise McDowell’s Kantian conception of experience as „openness to the world“ in an important respect: We should not understand openness to the world as unproblematically and transcendentally given, but as an inherently self-critical event unfolding in time, too. (shrink)

The nature of olfaction; its importance for understanding perennial issues of philosophy of mind, perception, and consciousness; and its implications for cognitive neuroscience. -/- What are smells? Despite the best efforts of philosophy and the chemosciences, the question remains vexing—but no more perplexing than the historical lapse of the past few centuries to seriously consider a sense that has a key place in philosophy of mind and perception. Stinking Philosophy! is Benjamin Young's answer to this critical lapse. Drawing together more (...) than a decade of research on olfactory philosophy, this book offers a clear, comprehensive look at the nature of odors—how we perceive smells, how we cognitively represent odors, how we communicate about them as categories, and what they can tell us about consciousness. -/- In Stinking Philosophy! Young presents a methodology for addressing the philosophical and conceptual issues raised by the sense of smell. Then, in an exacting and coherent fashion, he explores how the philosophy of smell contributes to—and advances—a wide range of debates within philosophy of mind, perception, and cognitive neuroscience. Ultimately, his work demonstrates how empirically informed philosophy can have a significant impact on interdisciplinary research on smell across philosophy, the chemosciences, and neuroscience. (shrink)

Epistemological internalists have a problem about perceptual knowledge: how can perceptual experience both provide faithful information about the external world and justification for empirical belief? This is Sellars’s famous problem about “the given.” Chapter 12 argues, first, that this problem is not just for internalists—a version of it arises for naturalistic externalists. But, second, it argues that the problem can be solved within naturalistic bounds, by appealing to a category of causal relations called “intelligible causation.”.

Predictive processing models of perception take issue with standard models of perception as hierarchical bottom-up processing modulated by memory and attention. The predictive framework posits that the brain generates predictions about stimuli, which are matched to the incoming signal. Mismatches between predictions and the incoming signal – so-called prediction errors – are then used to generate new and better predictions until the prediction errors have been minimized, at which point a perception arises. Predictive models hold that all bottom-up processes are (...) signals conveying prediction errors to higher areas, which respond by updating their predictions. We take issue with this claim and argue that object recognition requires bottom-up processing that cannot be understood in terms of prediction errors. Along the way, we expand on previous work casting doubt on the framework's ability to account for attention. Specifically, we argue that the type of attention that allows us to rapidly extract the gist of an object or scene presents an additional challenge to the predictive approach. We conclude by considering how the framework may be augmented to avoid these problems. (shrink)

The cinematographic frame is a boundary which separates the image from the external world. From an ontological viewpoint which dates back to Greek philosophy, the boundary of a thing separates it from other things, thus leading to its ontological independence from other things. But, according to this point of view, the being of things as external objects is considered to be free from the impact of subjective interference and the experience of the viewer. This idea was radically changed with Kant’s (...) Copernican revolution. By separating the Thing in Itself from the Phenomena, Kant, on the one hand, announced that the object of human cognition is only the Phenomena, and on the other hand, that they are knowable only to the extent that they are known under the a priori subjective factors, i.e. the forms of intuition and the categories of understanding. The first purpose of this paper is to show the limitations of the traditional concepts of the cinematographic frame according to the subjective perception of the viewer. The second objective is to ask how it is possible not to regard this perception as just a mental perception, but a corporeal one. Finally, the results of this investigation are considered in the analysis of the corporeal perception of the cinematographic frame. (shrink)

Our sense of smell pervasively influences our most common behaviors and daily experience, yet little is known about olfactory consciousness. Over the past decade and a half research in both the fields of Consciousness Studies and Olfaction has blossomed, however, olfactory consciousness has received little to no attention. The olfactory systems unique anatomy, functional organization, sensory processes, and perceptual experiences offers a fecund area for exploring all aspects of consciousness, as well as a external perspective for re-examining the assumptions of (...) contemporary theories of consciousness. It has even been suggested that the olfactory system may represent the minimal neuroanatomy that is required for conscious processing. Here, we seek contributions that should serve as the foundation for future research concerning consciousness using olfaction as a model. -/- Given the variegated nature of research on consciousness, we seek original papers including review articles, original research, and theoretical contributions concerning the nature of olfactory consciousness. The scope of the special edition widely incorporates olfaction as it relates to Consciousness, Awareness, Attention, Phenomenal- or Access-Consciousness, and Qualia. Research concerning olfaction and cross-modal integration as it relates to conscious experience is also welcome. -/- As the initial foray into this uncharted area of research, we welcome contributions from across all disciplines contributing to cognitive neuroscience, including neurobiology, neurology, psychology, philosophy, linguistics, and computer sciences. It is our hope that this special edition will serve as the impetus for future interdisciplinary research on olfaction and consciousness. (shrink)

Theory of perception in Ślokavārttika, work on Mimamsa philosophy by Kumārila Bhaṭṭa.

Extended reality devices provide users with unprecedented immersive and hybrid perceptual experiences, and users will act their bodies according to the information perceived. This shows that visual perception plays a crucial role in the formation and shaping of self-perception and spatial position. Users have a strong perceptual experience of their physical presence and self-perception in the real world as a result of their avatar perspective based on visual perception in a virtual hybrid environment, as is issued by Chalmers in his (...) "Mirror Argument". However, users can still clearly differentiate their self and spatial experience between virtual and reality. To refute Chalmers' argument regarding perceptual experience in virtual reality, this article proposes a thought experiment called "Mary's Room in the Virtual Reality World" based on the experimental evidence of neuroscience. Finally, a possible future solution to this dilemma is presented. (shrink)

We face reality presented with the data of conscious experience and nothing else. The project of early modern philosophy was to build a complete theory of the world from this starting point, with no cheating. Crucial to this starting point is the data of conscious sensory experience – sense data. Attempts to avoid this project often argue that the very idea of sense data is confused. But the sense-data way of talking, the sense-data language, can be freed from every blemish (...) using ideas from contemporary metaontology. We can adopt a sense-data framework that vindicates the traditional claims of sense-data theories and leads to plausible theories of perception and color. We can, we should, and in a sense, we must. Yet when we do, we face the traditional problem of external world skepticism, head-on. The real challenge of skepticism is forced upon us; it cannot honestly be avoided using externalist tricks, burden of proof shifting, or other razzle dazzle. But the challenge can be met: we are rational to posit the external world as the best explanation of the many synchronic and diachronic patterns over our sense-data. This paper argues for all of these points and ends with a plea for analytic empiricism – a traditional sense-data version of empiricism that uses all of the tools of analytic philosophy while avoiding the more questionable doctrines of the Vienna Circle (phenomenalism, verificationism). Analytic empiricism is our last best hope for completing the great philosophical project of early modern philosophy. (shrink)

Philosophy and Phenomenological Research, EarlyView.

Sensory Individuals: Unimodal and Multimodal Perspectives provides an interdisciplinary, well-balanced, and comprehensive look at different aspects of unisensory and multisensory objects, using both nuanced philosophical analysis and informed empirical work. The research presented in this book represents the field's progression from treating neural sensory processes as primarily modality-specific towards its current state of the art, according to which perception, and its supporting neural processes, are multi-modal, modality-independent, meta-modal, and task-dependent. Even within such approaches sensory stimuli, properties, brain activations, and corresponding (...) perceptual phenomenology can still be characterized in a modality-specific way. The book examines the basic building blocks of human perception, and whether they are best understood as sense modality dependent units of different forms or multimodal perceptual objects. The book combines a variety of innovative and integrative angles to explore the topic and acts as a catalyst for an increasingly diverse field of research, which is in an exciting phase of growth and advancement. New questions are arising as quickly as they are being answered, and the collection Sensory Individuals provides an original and up-to-date addition to the field. (shrink)

A central claim in contemporary philosophy of mind is that the phenomenal character of experience is entirely determined by its content. This paper considers an alternative called Mode Intentionalism. According to this view, phenomenal character outruns content because the intentional mode contributes to the phenomenal character of the experience. I assess a phenomenal contrast argument in support of this view, arguing that the cases appealed to allow for interpretations which do not require positing intentional modes as phenomenologically manifest aspects of (...) experience. (shrink)

The outbreak of SARS-CoV-2 has threatened ethnographic inquiry, undermining its quintessential characteristic. Participant observation, then, has been thoroughly dismembered by the radical measures implemented to prevent the spread of the virus. This phenomenon, in short, has dragged anthropologists to a liminal state within which ethnography is paradoxically caught in an onto-epistemological unstable vortex. The question of being here and not there, during the pandemic, is epitomised in the instability of different spatio-temporal contexts that overlap through technological mediations. Reflecting on previous (...) fieldwork experiences and current virtual inquiries with the Shuar of the Ecuadorian Amazon unfolds how COVID-19 has thoroughly reshaped how the author approaches subjects' socio-ecological settings. Against this background, the article argues that corporeal immersion remains a necessary condition for the anthropological scrutiny of multispecies relationalities amidst the challenging times of the Anthropocene. The article nevertheless demonstrates that the intellectual efforts to grasp the different material temporalities of virtual spaces embrace the ethical principles concerning the renunciation of fieldwork with vulnerable communities. Furthermore, a reflective and speculative stance is proposed to actualise the snapshots of faraway physicalities linking them to past embodied and multi-sensory experiences. It is ultimately theorised how these mnemonic devices operate as creative forms of inquiry that overcome the pandemic consequences, extra-stimulating our cognitive capabilities to reflect on prior and possible socio-material interactions. (shrink)

At first pass, colour constancy occurs when one sees a thing in one’s environment to have a stable colour despite differences in the way it is illuminated. The phenomenon is intuitively grounded for example in everyday experiences in which something is partly shadowed but, in some sense, looks to be uniformly coloured. After a brief introduction to the colour constancy concept (§0) and the science of colour constancy (§1), my focus is on the significance of colour constancy for two intertwined (...) philosophical issues. The first is colour ontology, where constancy has been used to argue for the objectivity of colour, and in particular for a reductive form of it (see §2). The second is colour constancy’s complicated connection to colour experience and colour epistemology. Colour constancy is a subtle phenomenon: it is situated at the intersection of perceptual experience and judgement; it is influenced by myriad forces within our visual-cognitive systems; and is likely a composite of interestingly disparate phenomena. I approach this suite of issues from the perspective of the given in colour perception (§3). As will become plain, the ontological and epistemic issues are related in important ways. This does not, however, detract from the value of focusing on each individually. (shrink)

This work investigates one of the most widespread yet elusive ideas about our experience of art: the idea that there is something cognitively valuable in engaging with great artworks, or, in other words, that we learn from them. This claim and the age-old controversy that surrounds it are reconsidered in light of the psychological and neuroscientific literature on learning, in one of the first systematic efforts to bridge the gap between philosophical and scientific inquiries on the topic. The work has (...) five chapters. Chapter 1 lays down its conceptual bases: it explains what learning is taken to be in the current philosophical debate and it points out how Bayesian cognitive science (particularly in its predictive processing formulations) might be well-suited to capture the kind of learning involved in our engagement with the arts. The following chapters test this latter hypothesis with respect to particular art forms, namely literature and literary language (Chapter 2), narrative (Chapter 3), and visual art, music and motor activities (Chapter 4). The fine-grained discussions conducted in each of these areas will enable us to see that the relationship between art and learning is indeed fundamental and pervasive. The final chapter (Chapter 5) examines the consequences of this fact for our understanding of the role of art in our epistemic practices, its ultimate usefulness and value, and its place in the interdisciplinary study of the human mind. The upshot is a novel and wide-ranging picture, both philosophically informed and empirically sound, that bypasses many of the problems and dead ends of the current philosophical debate on the topic and captures the deep sense in which art and learning are interrelated. (shrink)

If what we believe can directly modify our (visual) experience, our experience is doxastically variable. If so, the following seems possible: our false and irrational background beliefs can modify our experience such that in it, things look distorted, or that it conforms with and appears to confirm the false and irrational beliefs that helped bring it about in the first place. If experience is doxastically variable, it seems, its epistemic function can be undermined. However, in this dissertation, I argue that (...) we can devise accounts of (visual) experience that meet two requirements: they are fully compatible with all kinds of doxastic variation and on them, even doxastically variable experience serves to rationally constrain our beliefs. I begin with a novel interpretation of Hanson’s account of theory-laden observation—a valiant, yet ultimately unsuccessful attempt to meet both these requirements. Next, I analyze and reject various contemporary relationalist accounts of experience and the most sophisticated recent representationalist attempt to accommodate phenomena of doxastic variation: Siegel’s (Rich) Content View. Then, based on the lessons learned and drawing on Hanson’s and Gupta’s work, I show what shape a successful account may take. Ultimately, I argue for the following theses: 1) Neither of the two dominant accounts of experience—relationalism and standard representationalism—currently succeeds in satisfactorily meeting both requirements. 2) To arrive at accounts that do meet them, we should drop both the restrictive relationalist conception of experience as a relation to mind-independent items and the standard representationalist conception of experience as justifying beliefs. 3) We make progress by adopting both the general conception of experience as making rational transitions to beliefs, judgments, and actions and a (slightly) modified version of Gupta’s presentationalist account of experiential phenomenology. Finally, 4) the possibility of devising successful accounts is independent of a major issue dividing relationalists and representationalists: whether experience has content. In the final chapters, I address various follow-up questions concerning the nature of views, conceptual capacities, conceptual content, and linkages between a subject’s experience and her responses. In concluding, I show that the account of experience I recommend is widely applicable in philosophy and beyond. (shrink)

This chapter presents findings indicating that psilocybin-induced visual distortions and impaired executive functioning originate in temporary disruptions of attentional mechanisms. It then revisits a predictive processing account of neural processing and argues that this lacks the resources to provide a unified model of the perceptual mechanisms underpinning psychedelic experiences caused by classic hallucinogens such as psilocybin, lysergic acid diethylamide (LSD), and mescaline. Lastly, an alternative theory of perceptual processing is proposed—the Gist Theory of Perception—that can better explain how the psilocybin-induced (...) disruptions of attentional mechanisms may elicit psychedelic experiences. (shrink)

- First book to describe what pain means in vulnerable or special groups of people - Clinical applications described in each chapter - Provides insight into the nature of pain experience across the lifespan -/- This book, the third and final volume in the Meaning of Pain series, describes what pain means to people with pain in “vulnerable” groups, and how meaning changes pain – and them – over time. -/- Immediate pain warns of harm or injury to the person (...) with pain. If pain persists over time, more complex meanings can become interwoven with this primitive meaning of threat. These cognitive meanings include thoughts and anxiety about the adverse consequences of pain. Such meanings can nourish existential sufferings, which are more about the person than the pain, such as loss, loneliness, or despair. -/- Although chronic pain can affect anyone, there are some groups of people for whom particular clinical support and understanding is urgently needed. This applies to “vulnerable” or “special” groups of people, and to the question of what pain means to them. These groups include children, women, older adults, veterans, addicts, people with mental health problems, homeless people, or people in rural or indigenous communities. Several chapters in the book focus on the lived experience of pain in vulnerable adults, including black older adults in the US, rural Nigerians, US veterans, and adults with acquired brain injury. The question of what pain experience could mean in the defenceless fetus, neonate, pre-term baby, and child, is examined in depth across three contributions. -/- This book series aspires to create a vocabulary on the “meanings of pain” and a clinical framework with which to use it. It is hoped that the series stimulates self-reflection about the role of meaning in optimal pain management. -/- Meanings of Pain is intended for people with pain, family members or caregivers of people with pain, clinicians, researchers, advocates, and policy makers. Volume I was published in 2016; Volume II in 2019. (shrink)

European Journal of Philosophy, Volume 30, Issue 1, Page 307-325, March 2022.

Starting from Jaspers’ analysis of attitudes in Psychologie der Weltanschauungen and analyzing their causes, we find an essential description of the human being. The human condition of being in the world (Heidegger, Jaspers) can be troubled (Freud, Jung). However, this is characteristic for human life (Jaspers, Schellenbaum). Among all attitudes, the enthusiastic one is the more consistent with human being’s dynamic nature (Bergson, Jaspers, Schellenbaum). The human being feels himself deeply touched (Scheler, Jaspers) and becomes stunned. The aim of the (...) paper is to show that the enthusiastic view is well exposed by the act of singing. Traditionally analysed in connection with art (Cassirer, Solger, Wackenroder), the enthusiastic view gives us a “sound image” of the human being since his childhood (Gehlen, Leydi). In everyday life and by all its difficulties (Freud, Jung, Schellenbaum, Jaspers), the human being discloses his nature in acoustic manifestations (Keil, Kafka, Wackenroder) by expressing the enthusiastic mode. (shrink)

This article argues that conceptual realism offers an important alternative to naïve realist, purely relational approaches with which ‘disjunctivism’ has come to be readily associated. I argue that John McDowell’s account of perception as both contentful and relational tends to go unnoted when the options for disjunctive theories are laid out. But McDowell’s approach is important because it comes up the middle between ‘intentional’ and ‘relational’ views of perception. In doing so, it offers theoretical resources for explaining perceptual experience and (...) its epistemic standing that purely relational views associated with naïve realism do not have. McDowell’s work opens a unified approach to perception and its epistemic potential that turns on the claim that it is contents and the broader context of capacities in which such contents figure that secure the perceiver’s relation to what she sees. I call views of this kind conceptual realism, though commonsense realism might be more apt. Following comparison of the explanations that conceptual and naïve realism can provide of various difficult scenarios, the paper concludes with an example of how conceptual realist theories might disagree or diverge from the detail of McDowell’s approach. My criticism draws on aesthetics to discuss experience of aesthetic properties. (shrink)

The philosophical investigation of perceptual illusions can generate fruitful insights in the study of subjective time consciousness. However, the way illusions are interpreted is often controversial. Recently, proponents of the so-called dynamic snapshot theory have appealed to the Waterfall Illusion, a kind of motion aftereffect, to support a particular view of temporal consciousness according to which experience is structured as a series of instantaneous snapshots with dynamic qualities. This dynamism is meant to account for familiar features of the phenomenology of (...) time, such as succession, continuity, and change. Previous theories have typically appealed to a subjective present occupying an interval of time; that is, a “specious present.” I argue, through analysis of motion aftereffect illusions and the rare condition of akinetopsia, i.e. motion-blindness, that the Waterfall Illusion fails to support the dynamic snapshot theory as intended. Furthermore, I suggest that future theories of subjective time should see temporal phenomenology as the result of non-localised processes closely tied to the mechanism underlying consciousness generally. (shrink)

Two common strategies have dominated attempts to account for the nature of taste. On the one side, we have an affectivist understanding of taste where aesthetic attribution has to do with the expression of a subjective response. On the other side, we find a non-affectivist approach according to which to judge something aesthetically is to epistemically track its main aesthetic properties. Our main argument will show that neither emotion nor perception can explain the nature of aesthetic taste single-handedly. In this (...) paper, our principal aim is to examine the relationship between perceptual discernment and emotional sensibility as we find it in the process of ascribing aesthetic qualities. Is it the nature of the specific aesthetic property in question which determines the way in which perception and emotion are balanced in aesthetic attribution, or is it, rather, something about how our sensory skills operate? One of the notions we would like to explore in greater detail in this context is the idea of attunement, or the way in which aesthetic agents can align themselves to the content of an artwork o in order to better grasp its content and significance. According to our proposed picture, the exercise of taste involves an adjustment of one’s emotional sensibility to the aesthetic character of o. From here, we will posit both emotional and perceptual training as part of an agent’s aesthetic education in her use of aesthetic terms. (shrink)

Perceptual constancies have been studied by psychologists for decades, but in recent years, they have also become a major topic in the philosophy of mind. One reason for this surge of interest is Tyler Burge’s (2010) influential claim that constancy mechanisms mark the difference between perception and mere sensitivity, and thereby also the difference between organisms with genuine representational capacities and ‘mindless’ beings. Burge’s claim has been the subject of intense debate. It is becoming increasingly clear, however, that we cannot (...) hope to settle this debate (as well as related debates in the philosophy of mind) without a clear and substantive theoretical account of what perceptual constancies are. In the first part of this paper, I argue that the standard definitions in the literature fall short of providing such an account. Still, as I aim to show in the second part of the paper, by taking a closer look at some of the paradigm examples, it is possible to construct a plausible general account of perceptual constancies that is both clear and substantive, and that can serve as a firm foundation for settling debates like the dispute about Burge’s ‘constancy mechanism criterion’ for perception. (shrink)

Starting from two propositions, 1. The observer is part of reality and 2. Observers are independent of each other, we develop an approach to Hume’s problem of scepticism. We show that despite all knowledge coming through subjective perceptions we can nevertheless construct objective or transitive knowledge through relationships between entities, rather than the entities themselves. We posited that some phenomena of the real world are transitive and some are not. Transitive phenomena are transferable between observers without change and are thus (...) independent of observation. Transitive phenomena are relative quantities. Relative quantities are observational invariants and form the building blocks of our objective world. We show objective knowledge is developed from relative quantities whereas subjective knowledge is rooted in absolute quantities. The recognition that transitive quantities are invariants of observation gives them an independence from which we can construct an objective world. (shrink)

Autism spectrum disorder (ASD) is characterized by atypical perception, including processing that is biased toward local details rather than global configurations. This bias may impact on memory. The present study examined the effect of this perception on both implicit (Experiment 1) and explicit (Experiment 2) memory in conditions that promote either local or global processing. The first experiment consisted of an object identification priming task using two distinct encoding conditions: one favoring local processing (Local condition) and the other favoring global (...) processing (Global condition) of drawings. The second experiment focused on episodic (explicit) memory with two different cartoon recognition tasks that favored either local (i.e., processing specific details) or a global processing (i.e., processing each cartoon as a whole). In addition, all the participants underwent a general clinical cognitive assessment aimed at documenting their cognitive profile and enabling correlational analyses with experimental memory tasks. Seventeen participants with ASD and 17 typically developing (TD) controls aged from 10 to 16 years participated to the first experiment and 13 ASD matched with 13 TD participants were included for the second experiment. Experiment 1 confirmed the preservation of priming effects in ASD but, unlike the Comparison group, the ASD group did not increase his performance as controls after a globally oriented processing. Experiment 2 revealed that local processing led to difficulties in discriminating lures from targets in a recognition task when both lures and targets shared common details. The correlation analysis revealed that these difficulties were associated with processing speed and inhibition. These preliminary results suggest that natural perceptual processes oriented toward local information in ASD may impact upon their implicit memory by preventing globally oriented processing in time-limited conditions and induce confusion between explicit memories that share common details. (shrink)

The tokenization of a circle produces, what humans label, ‘the identity of one.’.

Berger and Mylopoulos (2019) critique recent scepticism about unconscious perception, focusing on experimental work from Peters and Lau, and theoretical work of my own. Central to their wide-ranging discussion is the claim that unconscious perception occupies a default status within both experimental and folk psychology. Here, I argue to the contrary that a conscious-perception-only model should be our default. Along the way, I offer my own analysis of Peters and Lau's study, assess the folk psychological status of unconscious perception, discuss (...) vision-for-action, and confront an important dilemma which Berger and Mylopoulos raise for the sceptic concerning the existence of unconscious mentality in general. (shrink)

Studies in the psychology of visual expertise have tended to focus on a limited set of expert domains, such as radiology and athletics. Conclusions drawn from these data indicate that experts use parafoveal vision to process images holistically. In this study, we examined a novel, as-of-yet-unstudied class of visual experts—architects—expecting similar results. However, the results indicate that architects, though visual experts, may not employ the holistic processing strategy observed in their previously studied counterparts. Participants (n = 48, 24 architects, 24 (...) naïve) were asked to find targets in chest radiographs and perspective images. All images were presented in both gaze-contingent and normal viewing conditions. Consistent with a holistic processing model, we expected two results: (1) architects would display a greater difference in saccadic amplitude between the gaze- contingent and normal conditions, and (2) architects would spend less time per search than an undergraduate control group. We found that the architects were more accurate in the perspectival task, but they took more time and displayed a lower difference in saccadic amplitude than the controls. Our research indicates a disjunctive conclusion. Either architects are simply different kinds of visual experts than those previously studied, or we have generated a task that employs visual expertise without holistic processing. Our data suggest a healthy skepticism for across-the-board inferences collected from a single domain of expertise to the nature of visual expertise generally. More work is needed to determine whether holism is a feature of all visual expertise. (shrink)

Predictive Processing theory, hotly debated in neuroscience, psychology and philosophy, promises to explain a number of perceptual and cognitive phenomena in a simple and elegant manner. In some of its versions, the theory is ambitiously advertised as a new theory of conscious perception. The task of this paper is to assess whether this claim is realistic. We will be arguing that the Predictive Processing theory cannot explain the transition from unconscious to conscious perception in its proprietary terms. The explanations offer (...) by PP theorists mostly concern the preconditions of conscious perception, leaving the genuine material substrate of consciousness untouched. (shrink)

The majority of the world’s population now lives an urban existence, spending as much as 95% of their lives indoors. The olfactory atmosphere in the built environment has been shown to exert a profound, if often unrecognized, influence over our mood and well-being. While the traditionally malodorous stench to be found indoors (i.e., prior to the invention of modern sanitation) has largely been eliminated in recent centuries, many of the outbreaks of sick-building syndrome that have been reported over the last (...) half century have been linked to the presence of a strange smell in the environment. At the same time, however, there is also growing evidence that consumer behavior can be manipulated by the presence of pleasant ambient odors, while various aromatherapy scents are said to improve our mood and well-being. This Anglophone review focuses primarily on indoor western urban developed spaces. Importantly, the olfactory ambience constitutes but one component of the multisensory atmosphere and ambient odors interact with the visual, auditory, and haptic aspects of the built environment. Surprisingly, the majority of published studies that have deliberately chosen to combine ambient scent with other sensory interventions, such as, for example, music, have failed to increase store sales, or to enhance people’s mood and/or well-being, as might have been expected. Such negative findings therefore stress the importance of considering multisensory congruency while, at the same time, also highlighting the potential dangers that may be associated with sensory overload when thinking about the effect of ambient smell on our well-being. (shrink)

It is most likely for anyone to ask himself at least once if it would be possible to live in a dream? Questioning the fabric of “reality” we live in consciously was one of the main doubts man ever had. It is so likely for us to answer positive to it due to so many factors; starting from the many and various facets of reality each individual envision the world, from the enormous differences we all have while perceiving and defining (...) the reality, etc. That is why, at the conscious level, life seems almost like a dream in a dream, always hoping to wake up from the negative, unwanted version of it. That is why my assertion here, based on latest theories on consciousness and AI, aim to say that we live in between reality and dream, being “conscious” of ourselves, but not really wanting to be “aware” of what is really going on with us. (shrink)

The experiments of quantum physics indicate that an electron will change its behavior/ reality depending on whether or not the electron is being observed as if the particle is aware that it is being observed. The reality thus is presumed to be, or only to be thought of as a scenario that can be altered, changed, or imagined differently depending on the observer or the screenwriter. Our historical development made us think that the reality has as many facets as we (...) want it to have, and none is more real than the other, as long there is a self-conscious being aware of it even if it has more accuracy or it stands on more evidence or arguments each proponent can bring into it. Therefore, a world full of unseen creatures that moves and determines a child’s life is not less authentic than one full of invisible particles making the world running and moving for a scientist. Each has its proofs, trials, ways of probation, so it is entirely entitled to be considered ‘real.’ However, what happens when concurrent theories over the same circumstance pronounce several valid testimonies? Do we have to pronounce either their validity based on the evidence brought by their proponents or should we consider only one of them? On what grounds can we make either these selections? It would be wrong to say that the reality is, in fact, the construct of a multitude of layers, each with different consistency and evidence, each real and provable, therefore each entitled to be called ‘reality’? Hence, consciousness can change reality just by being aware of it. In this context, we will also take into account the story of creation and see how it fits in this context. (shrink)