Background: Previous research shows that pediatricians inconsistently utilize the ethics consultation service (ECS). Methods: Pediatricians in two suburban, Midwestern academic hospitals were asked to reflect on their ethics training and utilization of ECS via an anonymous, electronic survey distributed in 2017 and 2018, and analyzed in 2018. Participants reported their clinical experience, exposure to formal and informal ethics training, use of formal and informal ethics consultations, and potential barriers to formal consultation. Results: Less experienced pediatricians were more likely to utilize (...) formal ethics consultation and more likely to have formal ethics training. The most commonly reported reasons not to pursue formal ECS consultation were inconvenience and self-reported expertise in pediatric ethics. Conclusions: These results inform ongoing discussions about ethics consultation among pediatricians and the role of formal ethics training in both undergraduate and graduate medical education. (shrink)

The Ontology for Biomedical Investigations (OBI) is an ontology that provides terms with precisely defined meanings to describe all aspects of how investigations in the biological and medical domains are conducted. OBI re-uses ontologies that provide a representation of biomedical knowledge from the Open Biological and Biomedical Ontologies (OBO) project and adds the ability to describe how this knowledge was derived. We here describe the state of OBI and several applications that are using it, such as adding semantic expressivity to (...) existing databases, building data entry forms, and enabling interoperability between knowledge resources. OBI covers all phases of the investigation process, such as planning, execution and reporting. It represents information and material entities that participate in these processes, as well as roles and functions. Prior to OBI, it was not possible to use a single internally consistent resource that could be applied to multiple types of experiments for these applications. OBI has made this possible by creating terms for entities involved in biological and medical investigations and by importing parts of other biomedical ontologies such as GO, Chemical Entities of Biological Interest (ChEBI) and Phenotype Attribute and Trait Ontology (PATO) without altering their meaning. OBI is being used in a wide range of projects covering genomics, multi-omics, immunology, and catalogs of services. OBI has also spawned other ontologies (Information Artifact Ontology) and methods for importing parts of ontologies (Minimum information to reference an external ontology term (MIREOT)). The OBI project is an open cross-disciplinary collaborative effort, encompassing multiple research communities from around the globe. To date, OBI has created 2366 classes and 40 relations along with textual and formal definitions. The OBI Consortium maintains a web resource providing details on the people, policies, and issues being addressed in association with OBI. (shrink)

Focal brain metabolic effects detected by proton magnetic resonance spectroscopy (MRS) in obsessive-compulsive disorder (OCD) represent prospective indices of clinical status and guides to treatment design. Sampling bilateral pregenual anterior cingulate cortex (pACC), anterior middle cingulate cortex (aMCC), and thalamus in 40 adult patients and 16 healthy controls, we examined relationships of the neurometabolites glutamate+glutamine (Glx), creatine+phosphocreatine (Cr), and choline-compounds (Cho) with OCD diagnosis and multiple symptom types. The latter included OC core symptoms (Yale-Brown Obsessive-Compulsive Scale - YBOCS), depressive symptoms (...) (Montgomery-Åsberg Depression Rating Scale - MADRS), and general functioning (Global Assessment Scale - GAS). pACC Glx was 9.7% higher in patients than controls. Within patients, Cr and Cho correlated negatively with YBOCS and MADRS, while Cr correlated positively with the GAS. In aMCC, Cr and Cho correlated negatively with MADRS, while Cr in thalamus correlated positively with GAS. These findings present moderate support for glutamatergic and cingulocentric perspectives on OCD. Based on our prior metabolic model of OCD, we offer one possible interpretation of these group and correlational effects as consequences of a corticothalamic state of elevated glutamatergic receptor activity alongside below-normal glutamatergic transporter activity. (shrink)

Siegel defends "Limited Intentionism", a theory of what secures the semantic reference of uses of bare demonstratives ("this", "that" and their plurals). According to Limited Intentionism, demonstrative reference is fixed by perceptually anchored intentions on the part of the speaker.

Jacques Derrida a formulé une importante critique du concept de tolérance hérité des Lumières. Évidemment, il ne recommande pas l’intolérance, mais il en appelle à une autre forme de tolérance réinterprétée dans le cadre d’une éthique plus générale de l’hospitalité. La parution en 2021 du volume 1 de son séminaire Hospitalité (EHESS, 1995-1996) permet de préciser ses concepts de l’hospitalité conditionnelle et de l’hospitalité inconditionnelle, ainsi que leur enchevêtrement aporétique. Cet article présente son concept d’hospitalité au-delà de la tolérance, mais (...) découvre aussi une in/tolérance au cœur de l’hospitalité. Celle-ci est enracinée dans le concept de vie que Derrida examine en termes d’auto-immunité : ce sont les réactions de la tolérance et de l’intolérance propres à la vie qui mettent à mal la pensée de l’hospitalité, en sorte que la pensée de l’hospitalité présuppose une in/tolérance qu’elle commande de surpasser. (shrink)

The subject of this book is the thought of the American pragmatist and founder of semiotics, Charles Sanders Peirce. The book collects the papers presented to the International Conference Semiotics and Philosophy in C.S. Peirce (Milan, April 2005), together with some additional new contributions by well-known Peirce scholars, bearing witness to the vigour of Peircean scholarship in Italy and also hosting some of the most significant international voices on this topic. The book is introduced by the two editors and is (...) divided into three sections, corresponding to the three main areas of the most interesting contemporary reflection on Peirce. Namely, Semiotics and the Logic of Inquiry (part I); Abduction and Philosophy of Mathematics (part II); Peirce and the Western Tradition. (part III). The analysis is carried out from a semiotic perspective, in which semiotics should not be understood as a specific doctrine but rather as the philosophical core of Peirce’s system. As we read in the introduction: “it is semiotics and philosophy or, rather, semiotics as philosophy and philosophy as semiotics, which emerge from a reading of these papers”. (shrink)

Veridically perceiving puts us in a better epistemic position than, say, hallucinating does, at least in that veridical perception affords knowledge of our environment in a way that hallucination does not. But is there any _further_ epistemic advantage? Some authors have recently argued that veridical perception provides a superior epistemic benefit over hallucination not just concerning knowledge, but concerning justification as well. This contrasts with a traditional view according to which experience provides justification irrespective of whether it’s veridical or hallucinatory. (...) I think both views are mistaken. Although this traditional view should be rejected in favor of one on which _some_ hallucinations are epistemically worse than veridical perceptions (and some are not), I don’t believe there is good reason to think that the mere fact of hallucination—or factivity more generally—has any consequences for justification. Susanna Schellenberg has endorsed both the traditional and the factive views (for different elements or kinds of perceptual justification), and I critique her views in detail, though I also draw out more general epistemological lessons about factivity and evidence. (shrink)

Singing and praying in the words of biblical men and women is basic to sacramental mimesis, i.e., Christian imitation of the actions of the saints with the intention of thereby opening themselves to grace. This evidence counters the “voiceless victim” paradigm prevalent in much feminist scholarship. In pre-Christian Jewish liturgy, the song of Miriam after the Crossing of the Red Sea was already important in the annual celebration of the Passover. Jesus emphasized the spiritual equality of the sexes in his (...) teaching and ministry, and this led to increased visibility for women in Christian tradition: Susanna was the first of at least eight women interpreted as types of Christ. She was presented this way even within the synoptic Gospels themselves [see “Aneboesen phone megale: Susanna and the Synoptic Passion Narratives,” forthcoming in Gregorianium]. Moreover, the practice of presenting examples from both sexes in sermons and church decoration was so pervasive as to constitute a pastoral program of the Church. Such balanced representation of the sexes is found in both texts and art. The linguistic range of the evidence for the singing of women’s words includes Greek, Latin, Coptic, Syriac, Slavonic, and German. The artworks depicting women are from throughout the Christian world, including Dura Europos, Jerusalem, Egypt, Ethiopia, Cyprus, Syria, Armenia, Italy, France, Belgium, Germany. More than twenty biblical women are treated in the essay. Women’s words, quoted from the biblical record or imaginatively supplied, became the prayer of the whole congregation. Miriam’s words remain focal universally on Holy Saturday. The acclamations of Elizabeth and of the Virgin Mary became prominent early in both East and West . Both Byzantine and Gregorian chant commemorated them and other women such as Eve, Esther, Judith, Sarah , Susanna, Martha of Bethany, the Samaritan woman, the Canaanite woman, the woman with the ointment, the Samaritan woman, the ten virgins of the parable , and especially the Holy Women at the Tomb . Their proclamation of the Lord’s rising became particularly important in Byzantine resurrection hymns used at Easter and year-round. With four other first-century female saints– Junia, Mariamne, Photina and Thecla– Mary Magdalene was deemed ἰσαπόστολος “equal to the apostles,” because the angel commissioned her to announce the Lord’s Resurrection to the disciples. Martha’s profession of faith is the fullest recorded in the Gospels and became the basis for a Byzantine communion prayer . Repeatedly, one finds that women’s words were sung at important Sunday feasts and during Holy Week. In Gregorian chant their words were sung over the course of several days. Susanna’s words are readily found in fifty Gregorian chant manuscripts from the ninth through fifteenth centuries, used in cathedrals, in monasteries and other religious houses, and in parish churches; an appendix lists these manuscripts. Throughout the continent–in Italy, Austria, Slovenia, Germany, Switzerland, France, The Netherlands, England, Wales–the varied communities of the church sang Susanna’s words. Moreover, her words as mediated through Gregorian chant were quoted by Bernard of Clairvaux in a sermon and by Hermann of Scheda in his account of his conversion from Judaism. These men used Susanna’s words to evoke her as a type of Christ and thereby to seek to be like him themselves. That is, they experienced sacramental mimesis through singing women’s words. (shrink)

Cognitive penetration of perception is the idea that what we see is influenced by such states as beliefs, expectations, and so on. A perceptual belief that results from cognitive penetration may be less justified than a nonpenetrated one. Inferentialism is a kind of internalist view that tries to account for this by claiming that some experiences are epistemically evaluable, on the basis of why the perceiver has that experience, and the familiar canons of good inference provide the appropriate standards by (...) which experiences are evaluated. I examine recent defenses of inferentialism by Susanna Siegel, Peter Markie, and Matthew McGrath and argue that the prospects for inferentialism are dim. (shrink)

The idea that appearances provide justifications for beliefs—the principle of phenomenal conservatism—is self-evidently true. In the case of cognitive penetration, however, it seems that certain irrational etiologies of a belief may influence the epistemic quality of that belief. Susanna Siegel argues that these etiologies lead to ‘epistemic downgrade.’ Instead of providing us with a decisive objection, cognitive penetration calls for us to clarify our epistemic framework by understanding the formative parts of appearances. In doing so, the two different but (...) inseparable ideas of sensation and intellection provide us with a basis of our appearances. These appearances, in turn, provide us with the objective evidence needed to test our judgements. Thus, the extra-sensory concepts of intellectual identification and the appearances they help form become an epistemic groundwork. (shrink)

The structure of the pre‐Christian book of Daniel as newly edited in Palestine in the first century B.C. is coherent, often symmetrical, and meaningful and was the version used by Jesus and the early Christians. Origen's and Jerome's reordering of the fourteen‐chapter book in conformity with the extant Hebrew, however, vitiated that structure. Susanna's account opened the pre‐Christian Palestinian version. That account inaugurates the themes of wisdom and judgment and provides the restoration of right order within the community in (...) exile, a restoration essential for what transpires thereafter. Her experience is the first of four holy ordeals placed symmetrically in the first half of the book and framing the book as a whole. Significantly, the two chapters of Daniel most quoted in the Gospels are the ones that open the two halves of the book: Susanna, and the first vision of Daniel. Those two chapters are linked thematically and by diction, including the pair of unique phrases ‘[one grown] ancient of evil days' and ‘Ancient of Days’. Susanna exemplifies the experiences of the saints – suffering and then vindicated – and also, for the writers of the synoptic Gospels – the experiences of Jesus in his passion. (shrink)

In discussions of perception and its relation to knowledge, it is common to distinguish what one comes to believe on the basis of perception from the distinctively perceptual basis of one's belief. The distinction can be drawn in terms of propositional contents: there are the contents that a perceiver comes to believe on the basis of her perception, on the one hand; and there are the contents properly attributed to perception itself, on the other. Consider the content.

In this paper I offer a theory of what makes certain influences on visual experiences by prior mental states (including desires, beliefs, moods, and fears) reduce the justificatory force of those experiences. The main idea is that experiences, like beliefs, can have rationally assessable etiologies, and when those etiologies are irrational, the experiences are epistemically downgraded.

What do we see? We are visually conscious of colors and shapes, but are we also visually conscious of complex properties such as being John Malkovich? In this book, Susanna Siegel develops a framework for understanding the contents of visual experience, and argues that these contents involve all sorts of complex properties. Siegel starts by analyzing the notion of the contents of experience, and by arguing that theorists of all stripes should accept that experiences have contents. She then introduces (...) a method for discovering the contents of experience: the method of phenomenal contrast. This method relies only minimally on introspection, and allows rigorous support for claims about experience. She then applies the method to make the case that we are conscious of many kinds of properties, of all sorts of causal properties, and of many other complex properties. She goes on to use the method to help analyze difficult questions about our consciousness of objects and their role in the contents of experience, and to reconceptualize the distinction between perception and sensation. Siegel's results are important for many areas of philosophy, including the philosophy of mind, epistemology, and the philosophy of science. They are also important for the psychology and cognitive neuroscience of vision. (shrink)

Recently, the thesis that experience is fundamentally a matter of representing the world as being a certain way has been questioned by austere relationalists. I defend this thesis by developing a view of perceptual content that avoids their objections. I will argue that on a relational understanding of perceptual content, the fundamental insights of austere relationalism do not compete with perceptual experience being representational. As it will show that most objections to the thesis that experience has content apply only to (...) accounts of perceptual content on which perceptual relations to the world play no explanatory role. With austere relationalists, I will argue that perceptual experience is fundamentally relational. But against austere relationalists, I will argue that it is fundamentally both relational and representational. (shrink)

There is an important division in the human mind between perception and reasoning. We reason from information that we have already, but perception is a means of taking in new information. Susanna Siegel argues that these two aspects of the mind become deeply intertwined when beliefs, fears, desires, or prejudice influence what we perceive.

I argue that any account of perceptual experience should satisfy the following two desiderata. First, it should account for the particularity of perceptual experience, that is, it should account for the mind-independent object of an experience making a difference to individuating the experience. Second, it should explain the possibility that perceptual relations to distinct environments could yield subjectively indistinguishable experiences. Relational views of perceptual experience can easily satisfy the first but not the second desideratum. Representational views can easily satisfy the (...) second but not the first desideratum. I argue that to satisfy both desiderata perceptual experience is best conceived of as fundamentally both relational and representational. I develop a view of perceptual experience that synthesizes the virtues of relationalism and representationalism, by arguing that perceptual content is constituted by potentially gappy de re modes of presentation. (shrink)

I argue that perceptual experience provides us with both phenomenal and factive evidence. To a first approximation, we can understand phenomenal evidence as determined by how our environment sensorily seems to us when we are experiencing. To a first approximation, we can understand factive evidence as necessarily determined by the environment to which we are perceptually related such that the evidence is guaranteed to be an accurate guide to the environment. I argue that the rational source of both phenomenal and (...) factive evidence lies in employing perceptual capacities that we have in virtue of being perceivers. In showing that both kinds of evidence have the same rational source, I provide a unified account of perceptual evidence and its rational source in perceptual experience. (shrink)

Siegel and Byrne debate whether perceptual experiences present rich properties or exclusively thin properties.

Perception grounds demonstrative reference, yields singular thoughts, and fixes the reference of singular terms. Moreover, perception provides us with knowledge of particulars in our environment and justifies singular thoughts about particulars. How does perception play these cognitive and epistemic roles in our lives? I address this question by exploring the fundamental nature of perceptual experience. I argue that perceptual states are constituted by particulars and discuss epistemic, ontological, psychologistic, and semantic approaches to account for perceptual particularity.

A number of Bayesians claim that, if one has no evidence relevant to a proposition P, then one's credence in P should be spread over the interval [0, 1]. Against this, I argue: first, that it is inconsistent with plausible claims about comparative levels of confidence; second, that it precludes inductive learning in certain cases. Two motivations for the view are considered and rejected. A discussion of alternatives leads to the conjecture that there is an in-principle limitation on formal representations (...) of belief: they cannot be both fully accurate and maximally specific. (shrink)

I develop a view of the common factor between subjectively indistinguishable perceptions and hallucinations that avoids analyzing experiences as involving awareness relations to abstract entities, sense-data, or any other peculiar entities. The main thesis is that hallucinating subjects employ concepts (or analogous nonconceptual structures), namely the very same concepts that in a subjectively indistinguishable perception are employed as a consequence of being related to external, mind-independent objects or property-instances. These concepts and nonconceptual structures are identified with modes of presentation types. (...) Since a hallucinating subject is not related to any such objects or property-instances, the concepts she employs remain empty. I argue that the phenomenology of hallucinations and perceptions can be identified with employing concepts and analogous nonconceptual structures. By doing so, I defend an ontologically minimalist view of the phenomenology of experience that (1) vindicates Aristotelianism about types and (2) amounts to a naturalized view of the phenomenology of experience. (shrink)

I argue that perceptual consciousness is constituted by a mental activity. The mental activity in question is the activity of employing perceptual capacities, such as discriminatory, selective capacities. This is a radical view, but I hope to make it plausible. In arguing for this mental activist view, I reject orthodox views on which perceptual consciousness is analyzed in terms of peculiar entities, such as, phenomenal properties, external mind-independent properties, propositions, sense-data, qualia, or intentional objects.

Can perceptual experiences be states of uncertainty? We might expect them to be, if the perceptual processes from which they're generated, as well as the behaviors they help produce, take account of probabilistic information. Yet it has long been presumed that perceptual experiences purport to tell us about our environment, without hedging or qualifying. Against this long-standing view, I argue that perceptual experiences may well occasionally be states of uncertainty, but that they are never probabilistically structured. I criticize a powerful (...) line of reasoning that we should expect perceptual experience to be probabilistic, given their interfaces with unconscious probabilistic information, with behavior responsive to it, and with credences. (shrink)

I am deeply indebted to Alex Byrne, Jonathan Cohen and Matthew McGrath for their careful, constructive, and penetrating comments on The Unity of Perception and I am grateful for the opportunity to clarify my view further.

What is the metaphysical nature of perceptual experience? What evidence does experience provide us with? These questions are typically addressed in isolation. In order to make progress in answering both questions, perceptual experience needs to be studied in an integrated manner. I develop a unified account of the phenomenological and epistemological role of perceptual experience, by arguing that sensory states provide perceptual evidence due to their metaphysical structure. More specifically, I argue that sensory states are individuated by the perceptual capacities (...) employed and that there is an asymmetric dependence between their employment in perception and their employment in hallucination and illusion. Due to this asymmetric dependence, sensory states provide us with evidence. (shrink)

This article presents Jean-Luc Nancy’s ideas of music in relation to being singular plural. Nancy elaborates on the themes of sharing of voices and of resonance in several texts, and he relates resonance specifically to sound, voice, and music. Although in other contexts Nancy thinks that the question of the subject belongs to the past, he maintains the question of the subject in the context of sonority. We will see that this subject is not only the subject of sensation but (...) more precisely the musical subject. Finally, we will see how musical themes help him deconstruct the idea of community on individual, dialogic, and collective levels. Nancy opposes his idea of musical community to the total musical community that characterizes Romanticism. In the end, he objects to all forms of formatting in genres and invites to open, active, and inventive forms of listening all sounds that resonate in the world. (shrink)

I argue that perception is necessarily situation-dependent. The way an object is must not just be distinguished from the way it appears and the way it is represented, but also from the way it is presented given the situational features. First, I argue that the way an object is presented is best understood in terms of external, mind-independent, but situation-dependent properties of objects. Situation-dependent properties are exclusively sensitive to and ontologically dependent on the intrinsic properties of objects, such as their (...) shape, size, and color, and the situational features, such as the lighting conditions and the perceiver’s location in relation to the perceived object. Second, I argue that perceiving intrinsic properties is epistemically dependent on representing situation-dependent properties. Recognizing situation-dependent properties yields four advantages. It makes it possible to embrace the motivations that lead to phenomenalism and indirect realism by recognizing that objects are presented a certain way, while holding on to the intuition that subjects directly perceive objects. Second, it acknowledges that perceptions are not just individuated by the objects they are of, but by the ways those objects are presented given the situational features. Third, it allows for a way to accommodate the fact that there is a wide range of viewing conditions or situational features that can count as normal. Finally, it makes it possible to distinguish perception and thought about the same object with regard to what is represented. (shrink)

I argue that there are phenomenological constraints on what it is to see an object, and that these are overlooked by some theories that offer allegedly sufficient causal and counterfactual conditions on object-seeing.

chapter on perception and bias including implicit bias.

This paper defends a principle I call Equal Treatment, according to which the rationality of a belief is determined in precisely the same way as the rationality of any other state. For example, if wearing a raincoat is rational just in case doing so maximizes expected value, then believing some proposition P is rational just in case doing so maximizes expected value. This contrasts with the popular view that the rationality of belief is determined by evidential support. It also contrasts (...) with the common idea that in the case of belief, there are two different incommensurable senses of rationality, one of which is distinctively epistemic. I present considerations that favor Equal Treatment over these two alternatives, reply to objections, and criticize some arguments for Evidentialism. I also show how Equal Treatment opens the door to a distinctive kind of response to skepticism. (shrink)

This paper develops a criterion for sameness of Fregean senses. I consider three criteria: logical equivalence, intensional isomorphism, and epistemic equipollence. I reject the first two and argue for a version of the third.

This paper proposes that the question “What should I believe?” is to be answered in the same way as the question “What should I do?,” a view I call Equal Treatment. After clarifying the relevant sense of “should,” I point out advantages that Equal Treatment has over both simple and subtle evidentialist alternatives, including versions that distinguish what one should believe from what one should get oneself to believe. I then discuss views on which there is a distinctively epistemic sense (...) of should. Next I reply to an objection which alleges that non-evidential considerations cannot serve as reasons for which one believes. I then situate Equal Treatment in a broader theoretical framework, discussing connections to rationality, justification, knowledge, and theoretical vs. practical reasoning. Finally, I show how Equal Treatment has important implications for a wide variety of issues, including the status of religious belief, philosophical skepticism, racial profiling and gender stereotyping, and certain issues in psychology, such as depressive realism and positive illusions. (shrink)

This chapter argues, using the method of phenomenal contrast, that causation is represented in visual experience. The conclusion is contrasted with the conclusions drawn by Michotte in his book The Perception of Causation.

This paper argues for a sufficient evidence condition on knowledge and I argue that there is no belief condition on knowledge.

The introduction of social distancing, as part of efforts to try and curb the spread of the COVID-19 pandemic, has brought about drastic disruption to the world of the performing arts. In the UK the majority of professional orchestral musicians are freelance and therefore self-employed. These players, previously engaged in enjoyable, busy, successful, portfolio careers, are currently unable to earn a living carrying out their everyday work of performing music, and their future working lives are surrounded by great uncertainty. The (...) aim of the present study was to examine how established professional musicians are experiencing this period, and to look for similarities and differences between the experiences of musicians in the middle of their performing careers, with those of older players. Single semi-structured interviews were carried out over Zoom with 24 freelance, self-employed orchestral musicians; 12 mid-career musicians aged 35–45, and 12 seasoned musicians aged 53 and over. Thematic analysis identified themes common to both groups: the loss of a much-loved performing career, missing music making and colleagues, and anxiety about the future of the music profession. It also identified differences between the two groups: challenges to their identity as a musician, the extent of their anxiety about finances, the extent of their emotional distress, attitudes toward practicing and engaging in collaborative music making, and confusion over future career plans. Findings are discussed with reference to lifespan models of musicians' career development, the PERMA model of wellbeing, and the concept of resilience. (shrink)

Since disjunctivists when talking about perception deny that hallucinations and veridical perceptions have a common fundamental nature, they need some other way to account for the fact that these kinds of experiences can ‘seem the same’ from the inside. A natural response is to give a purely epistemic account of hallucination, according to which there is nothing more to hallucinations than their indiscriminability from veridical perceptions. This chapter argues that the epistemic conception of hallucination falters in its treatment of cognitively (...) unsophisticated creatures, and that it cannot respect all the facts about what we can know on the basis of introspection. (shrink)

Philosophy and Phenomenological Research, Volume 104, Issue 2, Page 434-453, March 2022.

Despite their importance in the history of philosophy and in particular in the work of Aristotle and Kant, mental capacities have been neglected in recent philosophical work. By contrast, the notion of a capacity is deeply entrenched in psychology and the brain sciences. Driven by the idea that a cognitive system has the capacity it does in virtue of its internal components and their organization, it is standard to appeal to capacities in cognitive psychology. The main benefit of invoking capacities (...) in an account of the mind is that it allows for an elegant counterfactual analysis of mental states: it allows us to analyze mental states on three distinct yet interrelated levels. A first level of analysis pertains to the function of mental capacities. A second level of analysis pertains to the mental capacities employed, irrespective of the context in which they are employed. A third level of analysis pertains to the mental capacities employed, taking into account the context in which they are employed. This paper develops an account of perceptual capacities. This account involves an analysis of their function, their individuation and possession conditions, the relation between perceptual capacities and their employment, as well as their informational and neural base conditions. (shrink)