Scientific and philosophical perspectives on hallucination: essays that draw on empirical evidence from psychology, neuroscience, and cutting-edge philosophical theory.

An overview of the philosophy and psychology of hallucination and its relevance to the philosophy of perception.

Institutional talk, including service encounter discourse, has typically been taken to be ‘asymmetrical’ and the participants of these encounters to be constrained in terms of their allowable conversational contributions. This article explores shifts of alignment from normative serverclient alignments into different directions, involving symmetrical positionings of various kinds in travel agency spoken discourse. It is shown how these shifts occur and at which points in the interaction they might be found. The relevance of the commercial institutional context is also considered. (...) It is argued that these shifts from the supposedly unmarked asymmetrical alignment are motivated by orientations to relational goals and politeness/facework concerns, and they function as interpersonal devices achieving various relational configurations. These shifts are then related to levels of sociality that can be found in these, and other, face-to-face interactions. (shrink)

The papers in this collection on Aristotle’s Eudemian Ethics by Charles, Rowe, McCabe, Whiting, and Buddensiek, offer new readings of Aristotle on the voluntary, friendship, and good fortune in the EE, by treating the EE on its own terms.

An excerpt from the INTRODUCTORY chapter: THE word "aesthetic," which originally meant perception by the senses, has had its meaning particularized so that it usually is associated with perception of a specific kind. In this sense it is applied to the appreciative attitude of the discerning mind towards the beautiful in art and in nature. Philosophy has spent not a little time and trouble on the attempt to formulate and define the essential nature of the beautiful; but what one regards (...) as beautiful, another will either lack interest in or even positively dislike, and such attempts, therefore, have not been particularly successful. This conflict of tastes is particularly noticeable in the case of the Art of Music. One age has its ideals which are often — if not usually — opposed to those of the succeeding generation; people in one country will take pleasure in a type of music which appears incomprehensible to those of another; and, even in the case of individuals of the same time and place, what one may admire and love another will abhor and detest. In the case of Music, therefore, it seems well-nigh hopeless to attempt to formulate or define what is the "beautiful," and I have no intention in this little book of trying such an unpromising task. Each of us has his or her own ideas of what constitutes musical beauty, and in most cases the criteria on which our judgments are based are not themselves fixed but are in a state of flux and development. Many people, it is true, seem obliged to adopt a fixed standard of artistic value to which they refer and on which their artistic judgments depend, and strenuously endeavor to prevent any change in, or deviation from, the rigorous formulae which regulate their musical thinking. An enlightened and progressive attitude is, naturally, for such, an impossibility, and the inevitable and necessary developments of Art pass unnoticed or misunderstood. Some aesthetic standards, however, are necessary, and if they are allowed to share in the inevitable process of development — if they are living, not dead — assist that process by giving it both direction and progressive energy. It is not even necessary that the musician should be able to formulate clearly what are the conditions and factors in a work in virtue of which it appeals to him as beautiful or the reverse. To reduce these aesthetic values to a clean-cut statement of relations intellectually apprehended, would, by that very act, tend to induce reference to dead and mechanical standards. The feeling of the beautiful is something which is intuitive, and which neither needs to be explained, nor can be explained, in terms of reason. In fact, it is something apprehended immediately, "perceived through the senses," and can no more be "explained" than those sensations which we call heat, cold, sweet, sour, etc. The Art of Music as practised in countries which owe their culture and civilization to Western Europe is the outgrowth of a body of doctrine and dogma which is extremely elaborate and complex. But for the fact that much of it is obviously derived from convention and custom rather than from natural law, it might almost be called a Science. It is very doubtful, however, if the feeling for the beautiful in Music is more keen in the case of the individual expert in the niceties of this quasi-science than in him who is entirely ignorant of its laws and conventions. (shrink)

There existed a tradition of mimetic experimentation in the late nineteenth century, whereby morphologists sought to scale down sublime natural phenomena to tabletop devices in the laboratory. Experimenters constructed analogs of the aurora, attempting to replicate the colors and forms of the phenomenon with discharge tube experiments and electrical displays, which became popular spectacles at London’s public galleries. This paper analyses a closely allied but different kind of imitation. Between 1872 and 1884, Professor Karl Selim Lemström (1838–1904) attempted to reproduce (...) the aurora borealis in all of its complexity atop four mountains in northern Finland. Crucially, his “artificial aurora” was to materialize at the same scale as the original phenomenon and in its natural habitat in the polar atmosphere. With his experiment Lemström hoped to uncover the workings of the aurora and the electrical currents that he believed were always present within the atmosphere; his epistemological framework was one of learning by making. This paper sheds light on the broader problem of what it meant to authentically replicate a phenomenon that remained largely enigmatic, and, most importantly, how this replication could be verified. This prompts a discussion as to whether model experiments needed only to appear visually similar to the objects they purported to imitate, were required to preserve their form, or needed to be materially identical in order to the original to be identified as legitimate “reproductions” in the late nineteenth century. (shrink)

This volume presents ten new essays on the nature of perceptual imagination and perceptual memory, framed by an introductory overview of these topics. How do perceptual imagination and memory resemble and differ from each other and from other kinds of sensory experience? And what role does each play in perception and in the acquisition of knowledge? These are the two central questions that the contributors seek to address.

This volume presents ten new essays on the nature of perceptual imagination and perceptual memory. The central questions are: How do perceptual imagination and memory resemble and differ from each other and from other kinds of sensory experience? And what role does each play in perception and in the acquisition of knowledge?

The system of realist philosophy developed by John Anderson — situational realism — has recently been dismissed as ‘positivist’ by a prominent critical realist. The reason for this dismissal appears not to be the usual list of ideas deemed positivist, but the conviction that situational realism mistakenly defends a form of actualism, i.e. that to conceive of causal laws as constant conjunctions reduces the domain of the real to the domain of the actual. This is, in part, a misreading of (...) Anderson’s philosophy because, contrary to Hume’s constant conjunction account, Anderson viewed causation as pluralistic and non-linear. However, the critical realist charge does point to two important ontological differences between these realist philosophies — a levels-of-reality thesis and the notion of causal powers. Situational realism has always maintained that the arguments for both lead to difficulties that are logically insurmountable. Unfortunately, this is not addressed in the critical realists’ dismissal of Anderson’s philosophy. Regardless of who makes the charge of positivism, it frequently involves inattention to the real character of its target. (shrink)

This chapter explores the evidence for the existence of such new colour experiences and what their philosophical ramifications would be. I first define the notion of ‘novel colours’ and discuss why I think that this is the best name for such colours, rather than the numerous other names that they have sometimes been given in the literature. I then introduce the evidence and arguments for thinking that experiences as of novel colours exist, along with objections that people have had to (...) that evidence and to those arguments. To do so, I outline some facts about ordinary, non-novel colours before considering whether experiences as of novel colours, exist. Then I discuss the potentially significant ramifications the existence of novel colour experiences would have for theories of the metaphysics of colour, theories of the nature of colour experience, and for theories of the nature of perception more generally. (shrink)

Which objects and properties are represented in perceptual experience, and how are we able to determine this? The papers in this collection address these questions together with other fundamental questions about the nature of perceptual content. The book draws together papers by leading international philosophers of mind, including Alex Byrne (MIT), Alva Noë (University of California, Berkeley), Tim Bayne (St Catherine’s College, Oxford), Michael Tye (University of Texas, Austin), Richard Price (All Souls College, Oxford) and Susanna Siegel (Harvard University) Essays (...) address the central questions surrounding the content of perceptual experience Investigates how are we able to determine the admissible contents of experience Published in association with the journal Philosophical Quarterly . (shrink)

This powerfully iconoclastic book reconsiders the influential nativist position toward the mind. Nativists assert that some concepts, beliefs, or capacities are innate or inborn: "native" to the mind rather than acquired. Fiona Cowie argues that this view is mistaken, demonstrating that nativism is an unstable amalgam of two quite different--and probably inconsistent--theses about the mind. Unlike empiricists, who postulate domain-neutral learning strategies, nativists insist that some learning tasks require special kinds of skills, and that these skills are hard-wired into (...) our brains at birth. This "faculties hypothesis" finds its modern expression in the views of Noam Chomsky. Cowie, marshaling recent empirical evidence from developmental psychology, psycholinguistics, computer science, and linguistics, provides a crisp and timely critique of Chomsky's nativism and defends in its place a moderately nativist approach to language acquisition. Also in contrast to empiricists, who view the mind as simply another natural phenomenon susceptible of scientific explanation, nativists suspect that the mental is inelectably mysterious. Cowie addresses this second strand in nativist thought, taking on the view articulated by Jerry Fodor and other nativists that learning, particularly concept acquisition, is a fundamentally inexplicable process. Cowie challenges this explanatory pessimism, and argues convincingly that concept acquisition is psychologically explicable. What's Within? is a clear and provocative achievement in the study of the human mind. (shrink)

This chapter contains sections titled: What is Innateness? The Case for ElimiNativism Good Uses for Bad Concepts Against Premature Elimination References.

La réflexion sur la guerre de Montesquieu est amorcée dans l’ouvrage qu’il consacre à l’histoire de Rome : les Considérations sur les causes de la grandeur des Romains et de leur décadence. C’est pour le baron de la Brède un moyen de prendre position contre les arguments machiavélistes qui soutiennent les entreprises de conquêtes de son époque. Il s’agit alors de retracer la généalogie de cette prise de position depuis les thèses de Machiavel, dont Montesquieu hérite, jusqu’aux usages politiques qu’il (...) dénonce. (shrink)

This paper provides a categorization of cross-modal experiences. There are myriad forms. Doing so allows us to think clearly about the nature of different cross-modal experiences and allows us to clearly formulate competing hypotheses about the kind of experiences involved in different cross-modal phenomena.

Introduction -- The ethics of care and global politics -- Rethinking human security -- 'Women's work' : the global care and sex economies -- Humanitarian intervention and global security governance -- Peacebuilding and paternalism : reading care through postcolonialism -- Health and human security : gender, care and HIV/AIDS -- Gender, care, and the ethics of environmental security -- Conclusion. Security through care.

What happens when science hits the headlines - for all the wrong reasons? Do you remember the 'Climategate' email leak? Or the 'Frankenscience'-style headlines about the perils of GM foods? What about the time the government sacked its own science advisor for challenging drug laws? The truth behind the attention-grabbing headlines was complex, nuanced - sometimes even mundane. Yet that's not how it was reported or remembered. We rely on the media to help us make sense of complicated scientific developments (...) that could transform our world. Yet all too often, science coverage in the British press has been less fact than fiction. And equally scientists have too often either avoided engaging with the press or have been actively prevented from doing so. The result? Media hype, political spin, and misinformation from those with vested interests. In Beyond the Hype, Fiona Fox - founding director of the Science Media Centre, set up by scientists to encourage openness and accuracy in science communication - takes us behind the scenes of some of the most contentious stories in science over the past two decades. From animal research and genetically modified foods to hybrid embryos and climate change, she reveals the highs and lows of each controversy and shows us how transparency can radically transform the way science is reported, and what a difference that makes to public understanding. (shrink)

Can the phenomenal character of perceptual experience be altered by the states of one's cognitive system, for example, one's thoughts or beliefs? If one thinks that this can happen then one thinks that there can be cognitive penetration of perceptual experience; otherwise, one thinks that perceptual experience is cognitively impenetrable. I claim that there is one alleged case of cognitive penetration that cannot be explained away by the standard strategies one can typically use to explain away alleged cases. The case (...) is one in which it seems subjects' beliefs about the typical colour of objects affects their colour experience. I propose a two-step mechanism of indirect cognitive penetration that explains how cognitive penetration may occur. I show that there is independent evidence that each step in this process can occur. I suspect that people who are opposed to the idea that perceptual experience is cognitively penetrable will be less opposed to the idea when they come to consider this indirect mechanism and that those who are generally sympathetic to the idea of cognitive penetrability will welcome the elucidation of this plausible mechanism. (shrink)

Representationalism is the position that the phenomenal character of an experience is either identical with, or supervenes on, the content of that experience. Many representationalists hold that the relevant content of experience is nonconceptual. I propose a counterexample to this form of representationalism that arises from the phenomenon of Gestalt switching, which occurs when viewing ambiguous figures. First, I argue that one does not need to appeal to the conceptual content of experience or to judgements to account for Gestalt switching. (...) I then argue that experiences of certain ambiguous figures are problematic because they have different phenomenal characters but that no difference in the nonconceptual content of these experiences can be identified. I consider three solutions to this problem that have been proposed by both philosophers and psychologists and conclude that none can account for all the ambiguous figures that pose the problem. I conclude that the onus is on representationalists to specify the relevant difference in content or to abandon their position. (shrink)

This book challenges readers to rethink rural health ethics. Traditional approaches to health ethics are often urban-centric, making implicit assumptions about how values and norms apply in health care practice, and as such may fail to take into account the complexity, depth, richness, and diversity of the rural context. There are ethically relevant differences between rural health practice and rural health services delivery and urban practice and delivery that go beyond the stereotypes associated with rural life and rural health services. (...) This book examines key values in the rural context that have not been fully explored or taken into account when we examine health ethics issues, including the values of community and place, and a need to “revalue” relationships. It also advocates for a greater attention to meso and macro level analysis in rural health ethics as being critical to ethical analysis of rural health care. This book is essential reading for those involved in health ethics, rural health policy and governance, and for rural health providers. (shrink)

Although the focus of "Globalizing Democracy and Human Rights" is practical, Gould does not shy away from hard theoretical questions, such as the relentless debate over cultural relativism, and the relationship between terrorism and democracy.

The main aim of Lupyan’s paper is to claim that perception is cognitively penetrated and that this is consistent with the idea of perception as predictive coding. In these remarks I will focus on what Lupyan says about whether perception is cognitively penetrated, and set aside his remarks about epistemology. I have argued (2012) that perception can be cognitively penetrated and so I am sympathetic to Lupyan’s overall aim of showing that perception is cognitively penetrable. However, I will be critical (...) of some of Lupyan’s reasoning in arguing for this position. I will also call for clarification of that reasoning. First, I will discuss what is meant by cognitive penetration and, in light of this, the sort of evidence that can be used to establish its existence. Second, I will question whether Lupyan establishes that all cases of cross-modal effects are cases of cognitive penetration. In doing so, I will suggest a form of cognitive penetration that has heretofore not been posited, and give an example of how one might test for its existence. Third, I will question whether Lupyan puts forward convincing evidence that categorical knowledge and language affect perception in a way that conclusively shows that cognitive penetration occurs. Fourth, I will closely examine Lupyan’s reply to the argument against cognitive penetration from illusion. I show that his reply is not adequate and that he misses a more straightforward reply that one could give. Fifth, I briefly concur with the remarks that Lupyan makes about the role of attention with respect to cognitive penetration. And finally, sixth, I spell out exactly what I think the relationship is between the thesis that predictive coding is the correct model of perception and the thesis that there is cognitive penetration. (shrink)

Macphail’s ‘null hypothesis’, that there are no differences in intelligence, qualitative or quantitative, between non-human vertebrates has been controversial. This controversy can be useful if it encourages interest in acquiring a detailed understanding of how non-human animals express flexible problem-solving capacity (‘intelligence’), but limiting the discussion to vertebrates is too arbitrary. As an example, we focus here on Portia, a spider with an especially intricate predatory strategy and a preference for other spiders as prey. We review research on pre-planned detours, (...) expectancy violation and a capacity to solve confinement problems where, in each of these three contexts, there is experimental evidence of innate cognitive capacities and reliance on internal representation. These cognitive capacities are related to, but not identical to, intelligence. When discussing intelligence, as when discussing cognition, it is more useful to envisage a continuum instead of something that is simply present or not; in other words, a continuum pertaining to flexible problem-solving capacity for ‘intelligence’ and a continuum pertaining to reliance on internal representation for ‘cognition’. When envisaging a continuum pertaining to intelligence, Daniel Dennett’s notion of four Creatures (Darwinian, Skinnerian, Popperian, Gregorian) is of interest, with the distinction between Skinnerian and Popperian Creatures being especially relevant when considering Portia. When we consider these distinctions, a case can be made for Portia being a Popperian Creature. Like Skinnerian Creatures, Popperian Creatures express flexible problem solving capacity, but the manner in which this capacity is expressed by Popperian Creatures is more distinctively cognitive. (shrink)

Abstract: This paper seeks to establish whether the cognitive penetration of experience is compatible with experience having nonconceptual content. Cognitive penetration occurs when one’s beliefs or desires affect one’s perceptual experience in a particular way. I examine two different models of cognitive penetration and four different accounts of the distinction between conceptual and nonconceptual content. I argue that one model of cognitive penetration—“classic” cognitive penetration—is compatible with only one of the accounts of nonconceptual content that I identify. I then consider (...) the other model of cognitive penetration—cognitive penetration “lite”. I provide reasons to think that this is compatible with three accounts of nonconceptual content. Moreover, I argue that the account of nonconceptual content that it is not compatible with is a spurious notion of nonconceptual content that ought to be abandoned. Thus, I claim that cognitive penetration lite is compatible with all reasonable specifications of nonconceptual content. (shrink)

Research ethicists have recently declared a new ethical imperative: that researchers should communicate the results of research to participants. For some analysts, the obligation is restricted to the communication of the general findings or conclusions of the study. However, other analysts extend the obligation to the disclosure of individual research results, especially where these results are perceived to have clinical relevance. Several scholars have advanced cogent critiques of the putative obligation to disclose individual research results. They question whether ethical goals (...) are served by disclosure or violated by non-disclosure, and whether the communication of research results respects ethically salient differences between research practices and clinical care. Empirical data on these questions are limited. Available evidence suggests, on the one hand, growing support for disclosure, and on the other, the potential for significant harm. (shrink)

In the late 1940s, a microanatomist from London Ontario, Murray Barr, discovered a mark of sex chromosome status in bodily tissues, what came to be known as the ‘Barr body’. This discovery offered an important diagnostic technology to the burgeoning clinical science community engaged with the medical interpretation and management of sexual anomalies. It seemed to offer a way to identify the true, underlying sex in those whose bodies or lives were sexually anomalous . The hypothesis that allowed the Barr (...) body to stand in for ‘chromosomal’ or ‘genetic’ sex was provisional, but it supported the expectation that genetic information established one’s primary identity, and the conviction that the animal world could be neatly divided into two, and only two, sexes. Ultimately, this provisional hypothesis, and its status as an unambiguous arbiter of true sex, was overturned. But during much of the 1950s, Barr’s thesis about the identity of the Barr body was consistent with a coherent set of theories and evidence explaining sexual development and sexual pathology. Though provisional, the scientific status of the sex chromatin within this system of knowledge was good enough to support a flourishing research enterprise in the clinical sciences. (shrink)

Ethical perspectives on regional, rural, and remote healthcare often, understandably and importantly, focus on inequities in access to services. In this commentary, we take the opportunity to examine the implications of normalizing metrocentric views, values, knowledge, and orientations, evidenced by the recent (2022) New South Wales inquiry into health outcomes and access to hospital and health services in regional, rural and remote New South Wales, for contemporary rural governance and justice debates. To do this, we draw on the feminist inspired (...) approach to rural health ethics involving analysis of power relationships developed by Simpson and McDonald and related ideas from critical health sociology. In presenting this analysis, we extend contemporary thought about spatial health inequities and structural violence. (shrink)

In this paper I examine whether representationalism can account for various thought experiments about colour inversions. Representationalism is, at minimum, the view that, necessarily, if two experiences have the same representational content then they have the same phenomenal character. I argue that representationalism ought to be rejected if one holds externalist views about experiential content and one holds traditional exter- nalist views about the nature of the content of propositional attitudes. Thus, colour inver- sion scenarios are more damaging to externalist (...) representationalist views than have been previously thought. More specifically, I argue that representationalists who endorse externalism about experiential content either have to become internalists about the content of propositional attitudes or they have to adopt a novel variety of externalism about the content of propositional attitudes. This novel type of propositional attitude externalism is investigated. It can be seen that adopting it forces one to reject Putnam. (shrink)

This paper explores the potential for an international political theory of care as an alternative to liberalism in the context of contemporary global politics. It argues that relationality and interdependence, and the responsibilities for and practices of care that arise therewith, are fundamental aspects of moral life and sites of political contestation that have been systematically denied and obfuscated under liberalism. A political theory of care brings into view the responsibilities and practices of care that sustain not just ‘bare life’ (...) but all social life, from nuclear and extended families to local, national and transnational communities. It disrupts and challenges the individualism of liberalism, and the associated valorization of ‘freedom’, ‘autonomy’, and ‘toleration’. Instead, it emphasizes an ontology of relationality and interdependence that accepts the existence of vulnerability without reifying particular individuals, groups or states as ‘victims’ or ‘guardians’. Furthermore, by demonstrating the gendered and raced nature of caring in the contemporary world—from the household to the transnational level—an international political theory of care challenges our received assumptions about ‘dependence’ in world politics, and opens up space to interrogate politically not only gender but race and other aspects of inequality in the global political economy. (shrink)

It is a philosophy of patient care, and is therefore open to critique and evaluation.Using the Oxford Textbook of Palliative Medicine Third Edition as their ...

This article develops an approach to ethical globalization based on a feminist, political ethic of care; this is achieved, in part, through a comparison with, and critique of, Thomas Pogge's World Poverty and Human Rights. In his book, Pogge makes the valid and important argument that the global economic order is currently organized such that developed countries have a huge advantage in terms of power and expertise, and that decisions are reached purely and exclusively through self-interest. Pogge uses an institutional (...) rights framework to argue that direct responsibility for global poverty and inequality lies with the citizens of developed countries, since suffering and death are caused by global economic arrangements designed and imposed by our governments. While this argument is certainly compelling, I have argued that it tells us little about the actual effects of globalization on the real people of the South - including women, children and the elderly. As a result, it can offer little in the way of real alternatives or policy prescriptions. As a moral orientation, a care ethic relies on a relational moral ontology, and leads us to consider different values in terms of human flourishing. Moreover, it pushes us to consider the normative implications of aspects of the global political economy which are usually not 'seen' at all, including the global distribution of care work and the corresponding patterns of gender and racial inequality, the underprovision of care and resources for caring work in both the developed and developing world, and the ways in which unpaid or low-paid caring work helps to sustain a cycle of exploitation and inequality on a global scale. (shrink)

Fiona Woollard presents an original defence of the Doctrine of Doing and Allowing, according to which doing harm seems much harder to justify than merely allowing harm. She argues that the Doctrine is best understood as a principle that protects us from harmful imposition, and offers a moderate account of our obligations to offer aid to others.

Merleau-Ponty identifies an intertwined affective state of anxiety and courage, claiming that these are one and the same thing, as a fundamental characteristic of human existence. I argue that trust, understood as phenomenologically basic, is the unity, or the something beyond, the singularly conceived states of anxiety and courage, and that trust itself cannot be conceived apart from these states. Merleau-Ponty says little, directly, about trust in his work, yet his focus on the fundamental precariousness of existence demands such an (...) exploration. I explore how our ordinary day-to-day experience of existence is related to an intertwined affective state of anxiety and courage and how trust is operative in affective depth, in order to understand how it is we come to speak of trust not only in terms of proximity and distance, emotional depth and extension across time, but most markedly, in terms of how we see someone and what it is like to be in relation to them. (shrink)

ABSTRACT This paper reveals David Hilbert’s position in the philosophy of mathematics, circa 1900, to be a form of non-eliminative structuralism, predating his formalism. I argue that Hilbert withstands the pressing objections put to him by Frege in the course of the Frege-Hilbert controversy in virtue of this early structuralist approach. To demonstrate that this historical position deserves contemporary attention I show that Hilbertian structuralism avoids a recent wave of objections against non-eliminative structuralists to the effect that they cannot distinguish (...) between structurally identical but importantly distinct mathematical objects, such as the complex roots of $-1$. (shrink)

The senses, or sensory modalities, constitute the different ways we have of perceiving the world, such as seeing, hearing, touching, tasting and smelling. But how many senses are there? How many could there be? What makes the senses different? What interaction takes place between the senses? This book is a guide to thinking about these questions. Together with an extensive introduction to the topic, the book contains the key classic papers on this subject together with nine newly commissioned essays.One reason (...) that these questions are important is that we are receiving a huge influx of new information from the sciences that challenges some traditional philosophical views about the senses. This information needs to be incorporated into our view of the senses and perception. Can we do this whilst retaining our pre-existing concepts of the senses and of perception or do we need to revise our concepts? If they need to be revised, then in what way should that be done? Research in diverse areas, such as the nature of human perception, varieties of non-human animal perception, the interaction between different sensory modalities, perceptual disorders, and possible treatments for them, calls into question the platitude that there are five senses, as well as the pre-supposition that we know what we are counting when we count them as five.This book will serve as an inspiring introduction to the topic and as a basis from which further new research will grow. (shrink)

If beliefs and desires affect perception—at least in certain specified ways—then cognitive penetration occurs. Whether it occurs is a matter of controversy. Recently, some proponents of the predictive coding account of perception have claimed that the account entails that cognitive penetrations occurs. I argue that the relationship between the predictive coding account and cognitive penetration is dependent on both the specific form of the predictive coding account and the specific form of cognitive penetration. In so doing, I spell out different (...) forms of each and the relationship that holds between them. Thus, mere acceptance of the predictive coding approach to perception does not determine whether one should think that cognitive penetration exists. Moreover, given that there are such different conceptions of both predictive coding and cognitive penetration, researchers should cease talking of either without making clear which form they refer to, if they aspire to make true generalisations. (shrink)