This book reconsiders the major current topics in the philosophy of perception using olfaction as the paradigm sense. The author reveals how many of the most basic concepts of philosophy of perception are based on peculiarities of visual perception not found in other modalities, and addresses how different the philosophy of perception would be if based on olfaction. The book addresses several aspects of olfaction, including perceptual qualities, percepts, olfaction and cognitive processes, and (...) consciousness. The first part of the book considers perception with respect to its ability to guide behaviors and to make information available to cognitive processes. The author continues by addressing the differences between conscious and non-conscious olfactory perception, and presents an argument for an important role of attention in conscious processes. The book concludes by discussing the function of conscious brain processes and their link to guiding behaviors in complex situations. (shrink)

An introduction to contemporary debates in philosophy of perception.

This edited volume on the philosophy of perception is based on the papers presented at the Wittgenstein Symposium 2017 (Kirchberg, Austria). It covers a wide range of recent topics in the philosophy of perception, from realism and objectivity in perception, intentionality and content, the distinction between perception and cognition, the cognitive penetrability of perception to the epistemology of perception. The volume contains papers by Tyler Burge, Howard Robinson, Olivier Massin, Michael Schmitz, Michael (...) Tye, Marcello Fiocco, Guillaume Frechette, Sofia Miguens, Uriah Kriegel, Pierre Jacob, Mark Kalderon, Berit Brogaard, Athanassios Raftopoulos, Ophelia Deroy, Charles Travis, Johannes Roessler, Philipp Berghofer, Harald Wiltsche, Frederique de Vignemont, Romana Schuler, Ulrich Arnswald, David Stern and Hans Sluga. (shrink)

Lambert Wiesing's The Philosophy of Perception challenges current theories of perception. Instead of attempting to understand how a subject perceives the world, Wiesing starts by taking perception to be real. He then asks what this reality means for a subject. In his original approach, the question of how human perception is possible is displaced by questions about what perception obliges us to be and do. He argues that perception requires us to be embodied, (...) to be visible, and to continually participate in the public and physical world we perceive. Only in looking at images, he proposes, can we achieve something like a break in participation, a temporary respite from this, one of perception's relentless demands. Wiesing's methods chart a markedly new path in contemporary perception theory. In addition to identifying common ground among diverse philosophical positions, he identifies how his own, phenomenological approach differs from those of many other philosophers, past and present. As part of the argument, he provides a succinct but comprehensive survey of the philosophy of images His original critical exposition presents scholars of phenomenology, perception and aesthetics with a new, important understanding of the old phenomenon, the human being in the world. (shrink)

Richard Sorabji here presents a selection of his previously-published papers on four topics in ancient philosophy: two on the mind-body relation, nine on sense perception, and one each on moral conscience and on the will. The substantial introduction updates and interconnects the papers and fills out the picture by reference to other writings by himself and others, and to further thoughts. The picture of the four main topics shows that each continued to develop throughout the 1200 year course (...) of Ancient Greek Philosophy up to 600 CE. (shrink)

This book provides an up-to-date and accessible overview of the hottest and most influential contemporary debates in philosophy of perception, written especially for this volume by many of the most important philosophers of the field. The book addresses the following key questions: Can perception be unconscious? What is the relation between perception and attention? What properties can we perceive? Are perceptual states representations? How is vision different from the other sense modalities? How do these sense modalities (...) interact with one another? Contributors are Ned Block, Berit Brogaard, Alex Byrne, Robert Kentridge, John Kulvicki, Heather Logue, Mohan Matthen, Bence Nanay, Matt Nudds, Casey O’Callaghan, Adam Pautz, Ian Phillips, Susanna Siegel and Wayne Wu. (shrink)

The main idea of this book is that perceiving is a way of acting. Perception is not something that happens to us, or in us. It is something we do. Think of a blind person taptapping his or her way around a cluttered space, perceiving that space by touch, not all at once, but through time, by skillful probing and movement. This is, or at least ought to be, our paradigm of what perceiving is. The world makes itself available (...) to the perceiver through physical movement and interaction. In this book I argue that all perception is touch-like in this way: perceptual experience acquires content thanks to our possession of bodily skills. What we perceive is determined by what we do (or what we know how to do); it is determined by what we are ready to do. In ways I try to make precise, we enact our perceptual experience; we act it out. (shrink)

The aim of the present work is to show the roots of the conception of perception as an active process, tracing the history of its development from Plato to modern philosophy. The contributors inquire into what activity is taken to mean in different theories, challenging traditional historical accounts of perception that stress the passivity of percipients in coming to know the external world. Special attention is paid to the psychological and physiological mechanisms of perception, rational and (...) non-rational perception and the role of awareness in the perceptual process. Perception has often been conceived as a process in which the passive aspects - such as the reception of sensory stimuli - were stressed and the active ones overlooked. However, during recent decades research in cognitive science and philosophy of mind has emphasized the activity of the subject in the process of sense perception, often associating this activity to the notions of attention and intentionality. Although it is recognized that there are ancient roots to the view that perception is fundamentally active, the history remains largely unexplored. The book is directed to all those interested in contemporary debates in the fields of philosophy of mind and cognitive psychology who would like to become acquainted with the historical background of active perception, but for historical reliability the aim is to make no compromises. (shrink)

Introduction: Three key principles -- Sense datum theories -- Adverbial theories -- Belief acquisition theories -- Intentional theories -- Disjunctive theories -- Perception and causation -- Perception and the sciences of the mind -- Perception and other sense modalities.

"An original work of scholarship that argues for the importance of olfaction (sense of smell) for understanding perennial issues philosophy of mind, perception, and consciousness"--.

How we come to know the external world has intrigued thinkers throughout the history of philosophy. Medieval philosophers understood that a theory of perception requires an account of the categorization of sensory information: to perceive things as being dangerous or beneficial and even as being individuals that belong to certain kinds (e.g., 'this is a dog'). A key question is whether this requires the intervention of rational cognitive capacities, cooperating with sensory ones in normal instances of perception. (...) The contributions to this volume investigate how thinkers from the thirteenth and fourteenth centuries answer this and other related questions about human perception. Contributors are Fabrizio Amerini, Joel Biard, Veronique Decaix, Christian Kny, Lydia Schumacher, Josee Filipe Silva, and Jorg Alejandro Tellkamp. (shrink)

Representation and content in some (actual) theories of perception -- Representation in perception and cognition : task analysis, psychological functions, and rule instantiation -- Perception as unconscious inference -- Representation and constraints : the inverse problem and the structure of visual space -- On perceptual constancy -- Getting objects for free (or not) : the philosophy and psychology of object perception -- Color perception and neural encoding : does metameric matching entail a loss of (...) information? -- Objectivity and subjectivity revisited : color as a psychobiological property -- Sense data and the mind body problem -- The reality of qualia -- The sensory core and the medieval foundations of early modern perceptual theory -- Postscript (2008) on Ibn al-Haytham's (Alhacen's) theory of vision -- Attention in early scientific psychology -- Psychology, philosophy, and cognitive science : reflections on the history and philosophy of experimental psychology -- What can the mind tell us about the brain? : psychology, neurophysiology, and constraint -- Introspective evidence in psychology. (shrink)

Maurice Merleau-Ponty is hailed as one of the key philosophers of the twentieth century. _Phenomenology of Perception_ is his most famous and influential work, and an essential text for anyone seeking to understand phenomenology. In this _GuideBook_ Komarine Romdenh-Romluc introduces and assesses: Merleau-Ponty’s life and the background to his philosophy the key themes and arguments of _Phenomenology of Perception_ the continuing importance of Merleau-Ponty’s work to philosophy. _Merleau-Ponty and Phenomenology of Perception_ is an ideal starting point for anyone (...) coming to his great work for the first time. It is essential reading for students of Merleau-Ponty, phenomenology and related subjects in the Humanities and Social Sciences. (shrink)

This book draws on Merleau-Ponty’s phenomenology to develop new and promising solutions to contemporary debates about perception. In providing an extension and defense of Merleau-Ponty’s account of perceptual content and of the relation between perception and the world, it demonstrates the enduring value of Merleau-Ponty’s insights for philosophy of perception today. -/- The author focuses on two main topics: the contents and the nature of perception. In the first half of this book, the author tackles (...) debates about the content of perception, namely, what sorts of properties or features of the world reveal themselves to us in perception and in what modes. Drawing on Merleau-Ponty’s description of perceptual “sense,” the author argues that perception has a unique kind of content, which cannot be adequately described in terms of sensations or concepts. He then shows how this account of perceptual sense can clarify debates about the richness of perceptual content, including whether we can perceive moral properties. In the second half, he turns to the nature of perception. Here he argues that Merleau-Ponty’s account of perceptual intentionality makes available a powerful combination of the core insights of two main contemporary approaches to this question: realism and intentionalism. The author shows how this combination can be developed, defends it from objections, and explains how it is equipped to deal with problems posed by the existence of illusions and hallucinations. -/- Merleau-Ponty and Contemporary Philosophy of Perception will appeal to scholars and advanced students working on phenomenology and the philosophy of perception. (shrink)

00 Drawing on the phenomenological tradition in the philosophy of science and philosophy of nature, Patrick Heelan concludes that perception is a cognitive, ...

This chapter considers how Liberal Naturalism interacts with the main problems and theories in the philosophy of perception. After briefly summarising the traditional philosophical problems of perception and outlining the standard philosophical theories of perceptual experience, it discusses whether a Liberal Naturalist outlook should incline one towards or away from any of these standard theories. Particular attention is paid to the work of John McDowell and Hilary Putnam, two of the most prominent Liberal Naturalists, whose work was (...) also very influential in the philosophy of perception. There is also a section focusing on colour, an especially important topic not only for debates about perceptual experience but also for debates concerning how our ‘manifest image’ of the natural world relates to our best theories in the physical sciences. (shrink)

Overview of recent work in philosophy of perception.

In recent years, the rich tradition of various philosophical theories of perception has been increasingly studied by scholars of the history of philosophy of ...

The diverse essays in this volume speak to the relevance of phenomenological and psychological questioning regarding perceptions of the human. This designation, human, can be used beyond the mere identification of a species to underwrite exclusion, denigration, dehumanization and demonization, and to set up a pervasive opposition in Othering all deemed inhuman, nonhuman, or posthuman. As alerted to by Merleau-Ponty, one crucial key for a deeper understanding of these issues is consideration of the nature and scope of perception. (...) class='Hi'>Perception defines the world of the perceiver, and perceptual capacities are constituted in engagement with the world – there is co-determination. Moreover, the distinct phenomenology of perception in the spectatorial mode in contrast to the reciprocal mode, deepens the intersubjective and ethical dimensions of such investigations. -/- Questions motivating the essays include: Can objectification and an inhuman gaze serve positive ends? If so, under what constraints and conditions? How is an inhuman gaze achieved and at what cost? How might the emerging insights of the role of perception into our interdependencies and essential sociality from various domains challenge not only theoretical frameworks, but also the practices and institutions of science, medicine, psychiatry and justice? What can we learn from atypical social cognition, psychopathology and animal cognition? Could distortions within the gazer’s emotional responsiveness and habituated aspects of social interaction play a role in the emergence of an inhuman gaze? -/- Perception and the Inhuman Gaze will interest scholars and advanced students working in phenomenology, philosophy of mind, psychology, psychiatry, sociology and social cognition. -/- Table of Contents -/- Introduction -/- Part I. The Gaze in Classical Phenomenology: Perspectives on Objectification -/- 1. Defending the Objective Gaze as a Self-transcending Capacity of Human Subjects -/- Dermot Moran -/- 2. Two Orders of Bodily Objectification: The Look and the Touch -/- Sara Heinämaa -/- 3. On Eliminativism’s Transient Gaze -/- Timothy Mooney -/- 4. Not wholly human. Reading Maurice Merleau-Ponty with Jacques Lacan. -/- Dorothée Legrand -/- 5. Disclosure and the Gendered Gaze in Simone de Beauvoir's Ethics -/- Christinia Landry -/- Part II. Vision, Perception and Gazes -/- 6. Inside the gaze -/- Shaun Gallagher -/- 7. Perception and its Objects. -/- Maurita Harney -/- 8. Technological Gaze: Understanding How Technologies Transform Perception -/- Richard Lewis -/- 9. The Inhuman Gaze and Perceptual Gestalts: The Making and Unmaking of Others and Worlds -/- Anya Daly -/- Part III. Psychiatry, Psychopathology and Inhuman Gazes -/- 10. Values and Values-based Practice in Psychopathology: Combining Analytic and Phenomenological Approaches -/- G Stanghellini and K.W.M. (Bill) Fulford -/- 11. The Inhuman and Human Gaze in Psychiatry, Psychopathology and Schizophrenia. -/- Matthew Broome -/- 12. Overcoming the Gaze: Psychopathology, Affect, and Narrative. -/- Anna Bortolan -/- 13. From excess to exhaustion : The rise of burnout in a post-modern achievement society. -/- Philippe Wuyts -/- 14. Blackout Rages: The Inhibition of Episodic Memory in Extreme Berserker Episodes -/- John Protevi -/- Part IV. Beyond the Human: Divine, Posthuman and Animal Gazes -/- 15. Wondering at the Inhuman Gaze -/- Sean. D. Kelly -/- 16. What Counts as Human/ Inhuman Right Now? -/- Rosi Braidotti -/- 17. Beyond Human and Animal: Metamorphosis in Merleau-Ponty -/- Dylan Trigg -/- Part V. Sociality and Boundaries of the Human -/- 18. Voice and gaze considered together in ‘languaging’. -/- Fred Cummins -/- 19. Ethics Beyond the Human: Disability and The Inhuman -/- Jonathan Mitchell -/- 20. Social Invisibility and Emotional Blindness -/- James Jardine -/- 21. What are you looking at? Dissonance as a window on the autonomy of participatory sense-making frames. -/- Mark James. (shrink)

The aim of this paper is to argue that it is a promising avenue of research to consider philosophy of perception to be a guide to aesthetics. More precisely, my claim is that many, maybe even most, traditional problems in aesthetics are in fact about philosophy of perception that can, as a result, be fruitfully addressed with the help of the conceptual apparatus of philosophy of perception. This claim may sound provocative, but after qualifying (...) what I mean by aesthetics (to be contrasted with philosophy of art) and by philosophy of perception, it may be easier to accept. (shrink)

In Perception: First Form of Mind, Tyler Burge develops an understanding of the most primitive type of representational mind: perception. Focusing on its form, function, and underlying capacities, as indicated in the sciences of perception, Burge provides an account of the representational content and formal representational structure of perceptual states, and develops a formal semantics for them. The account is elaborated by an explanation of how the representational form is embedded in an iconic format. These structures are (...) then situated in current theoretical accounts of the processing of perceptual representations, with an emphasis on the formation of perceptual categorizations. An exploration of the relationship between perception and other primitive capacities-conation, attention, memory, anticipation, affect, learning, and imagining-clarifies the distinction between perceiving, with its associated capacities, and thinking, with its associated capacities. Drawing on a broad range of historical and contemporary research, rather than relying on introspection or ordinary talk about perception, Perception: First Form of Mind is a scientifically rigorous and agenda-setting work in the philosophy of perception and the philosophy of science. (shrink)

" --Maurice A. Finocchiaro,Isis "The best and most original aspect of the book is its overall conception.

This paper examines the impact of Chinese business managers’ moral philosophies on the perception of corrupt payments such as bribery, kickbacks and gift giving. Business managers from Mainland China were selected as target respondents. As hypothesized the survey results generally indicate that moral relativism is a significant predictor of Chinese business managers’ favorable perception of bribery and kickbacks. In examining the attitude toward gift giving, the survey showed that an individual’s attitude toward gift giving was neither affected by (...) their moral relativism nor by their moral idealism, which implies that gift giving is widely accepted as legal practice in business in Chinese cultural society. (shrink)

The Problem of Perception offers two arguments against direct realism--one concerning illusion, and one concerning hallucination--that no current theory of ...

In recent philosophy of mind, a series of challenging ideas have appeared about the relation between the body and the sense of touch. In certain respects, these ideas have a striking affinity with Husserl’s theory of the constitution of the body. Nevertheless, these two approaches lead to very different understandings of the role of the body in perception. Either the body is characterized as a perceptual “organ,” or the body is said to function as a “template.” Despite its (...) focus on the sense of touch, the latter conception, I will argue, nevertheless orients its understanding of tactual perception toward visual objects. This produces a distorted conception of touch. In this paper, I will formulate an alternative account, which is more faithful to what it is like to feel. (shrink)

Originally published in 1964. In four essays, Professor Mandelbaum challenges some of the most common assumptions of contemporary epistemology. Through historical analyses and critical argument, he attempts to show that one cannot successfully sever the connections between philosophic and scientific accounts of sense perception. While each essay is independent of the others, and the argument of each must therefore be judged on its own merits, one theme is common to all: that critical realism, as Mandelbaum calls it, is a (...) viable epistemological position, even though some schools of thought hold it in low esteem. (shrink)

INTRODUCTION If there is one underlying implication in the following essays it is the inadequacy of the information-processing model for cognitive ...

Philosophy of perception is one of the most robust and flourishing fields within contemporary philosophy. This volume casts a spotlight on the subject’s most dynamic conversations, with pairs of philosophers debating six key questions: 1. Are perceptual states representations? 2. How can perception be unconscious? 3. Is attention necessary for perception? 4. In what sense is perception multimodal? 5. How is vision different from other sense modalities? 6. Does perception include both low-level and (...) high-level properties? Preliminary descriptions of each side in each debate, annotated bibliographies for each question, and a supplemental guide to further controversies in the field are included. These student-friendly features make the volume is_ _an ideal resource for any advanced student wishing to understand live debates in this active field. (shrink)

An argument that there are perceptual mechanisms that retrieve information in cognitively and conceptually unmediated ways and that this sheds light on various ...

Zero provides a challenge for philosophers of mathematics with realist inclinations. On the one hand it is a bona fide cardinal number, yet on the other it is linked to ideas of nothingness and non-being. This paper provides an analysis of the epistemology and metaphysics of zero. We develop several constraints and then argue that a satisfactory account of zero can be obtained by integrating an account of numbers as properties of collections, work on the philosophy of absences, and (...) recent work in numerical cognition and ontogenetic studies. (shrink)

Nearly every theory of perception just focuses on one sense at a time; but most of the time we perceive using multiple senses. Casey O'Callaghan offers a revisionist multisensory philosophy of perception: he explores how our senses work together and influence each other, leading to surprising perceptual illusions and novel forms of experience.

Aesthetics is about ways of experiencing the world. But then if we apply the remarkably elaborate and sophisticated conceptual apparatus of philosophy of perception to questions in aesthetics, we can make real progress.

In the philosophy of perception, direct realism has come into vogue. Philosophical authors assert and assume that what their readers want, and what anyone should want, is some form of direct realism. There are disagreements over precisely what form this direct realism should take. The majority of positions in favor now offer a direct realism in which objects and their material or physical properties constitute the contents of perception, either because we have an immediate or intuitive acquaintance (...) with those objects and properties, or because our perceptual states have informational content that represents the properties of those objects (and which is not itself an object of perception and has no specifically subjective aspect). This paper considers various forms of perceptual realism, including, for purposes of comparison, the largely abandoned indirect or representative realism. After surveying the variety of perceptual realisms and considering their various commitments, I introduce some considerations concerning the phenomenology of visual space that cause trouble for most forms of direct realism. These considerations pertain to the perception of objects in the distance and, secondarily, to the perception of shapes at a slant. I argue that one of the lesser known varieties of perceptual realism, critical direct realism, can meet the challenges offered by the facts of spatial perception. (shrink)

A collection of works, many of them classics, on the orthodox view of visual perception.

The basic entity in phenomenology is the phenomenon. Knowing the phenomenon is another issue. The phenomenon has been described as the real natural object or the appearance directly perceived in phenomenology and analytic philosophy of perception. Within both traditions, philosophers such as Husserl, Heidegger, Merleau-Ponty, Russell and Wittgenstein have considered that perceptual experience demonstrates what a phenomenon is on the line between the mind and the external world. Therefore, conceptualizing the phenomenon is based on the perceptual evidence. However, (...) if the belief that perception is “theory-laden” is true, then perception can also be “philosophy-laden.” These philosophers have not noticed whether perceptual knowledge is independent of philosophies. If perceptual knowledge is not independent of philosophies, a philosopher’s background philosophy can influence what he or she claims to know about the phenomenon. For Husserl, experience is direct evidence of what exists. The textual evidence shows that Sartre rejects the distinction between appearance and reality based on the assumption of the phenomenon. By examining Husserl’s Ideas and Sartre’s Being and Nothingness I conclude that these philosophers’ philosophical languages influence their perceptual knowledge. Philosophical traditions affect the thoughts of perception. (shrink)

Philosophical theories of perception are generally admitted to be responses to certain problems or puzzles allied to the ancient dichotomy between Appearance and Reality. For they have been mainly provoked by the incompatibility of the common–sense assumption that an external, physical world exists and is revealed to the senses with the well–known facts of perceptual variation and error. If only what is real were perceived just as if only what is right were done it is possible that many of (...) those questions would never have been asked which lead to moral philosophy and a metaphysics of the external world. But sense perceptions of the same object vary so that it appears to have contradictory qualities and are sometimes completely deceptive. Nor do illusory differ internally from veridical perceptions. Moreover, perceptual variation and error can be unmasked only by such procedures as looking more carefully, listening harder, trying to touch, asking others, in short by more sense experience. So the senses are, as it were, both accused and judge in these disputes and why should a venal judge be trusted more than the criminal he tries? Such “correction” of one experience by another of the same kind seems no more reliable than the original “error.” Philosophers have found all this very puzzling. (shrink)

This is the editors' Introduction to a special issue of the journal, Multisensory Research. European philosophers of the modern period found multisensory perception to be impossible because they thought that perceptual ideas are defined by how they are experienced. Under this conception, the individual modalities are determinables of ideas—just as colour is a determinable that embraces red and blue, so also the visual is a determinable that embraces colour and (visually experienced) shape. Since no idea is experienced as, for (...) example, both visual and auditory, there can be no such thing as audiovisual perception. This conception of modality is not directly contested, but a variety of perceptual phenomena are listed that could raise interesting questions if treated as multimodal in origin. (shrink)

This volume will be an essential resource for anyone working in the central areas of philosophy, and the starting point for future research in this fascinating ...

Perception has been for philosophers in the last few decades an area of compelling interest and intense investigation. In large part, the catalyst for this activity has come from contemporary cognitive science and neuroscience, which has been progressing at an accelerating pace, throwing up new information about the brain and new conceptions of how sensory information is processed and used. These new conceptions offer philosophers opportunities for reconceptualizing the senses—what they tell us, how we use them, and the nature (...) of the knowledge they give us. Today, the philosophy of perception resonates with ideas that had not even been articulated in the 1970s and 1980s. This Handbook is a survey by leading philosophical thinkers of contemporary issues and new thinking in philosophy of perception. It includes sections on the history of the subject, introductions to contemporary issues in the epistemology, ontology, and aesthetics of perception, treatments of the individual sense modalities and of the things we perceive by means of them, and a consideration of how perceptual information is integrated and consolidated. New analytic tools and applications to other areas of philosophy are discussed in depth. Each of the forty-five entries is written by a leading expert, some collaborating with younger figures; each seeks to introduce the reader to a broad range of issues. All contain new ideas on the topic covered; together they are a portrait of the vigour and innovative zeal of a young field. The book is accessible to anybody who has an intellectual interest in issues concerning perception. (shrink)

This article examines the fundamental ontological significance that the category of perception has in philosophy of G.W. Leibniz, and establishes the connection between the category of perception and modern panpsychism. There is a problem of definition of protopsychic properties in modern panpsychism. The problem is expressed not only in the absence of such a definition, but also in the absence of a good strategy for finding possible candidates for the role of protopsychic property. To solve this problem, (...) the author considers the status of the monad as the center of perception in Leibniz’s monadology, as well as the question of the relation of different monads to each other. Based on Leibniz’s ideas, the following modifications for modern panpsychism have been proposed, among others. First, it was proposed that protopsychic properties be viewed as properties that represent all reality in some vague way, preventing the emergence of high-level psychic properties. Second, it was proposed that mental properties be viewed not as a combination of protopsychic properties, but as state of protopsychic properties. This means that to form high-level mental properties, protopsychic properties must not only form some system, but must also be partially blocked. The author also considers the question of whether it is possible to borrow the proposed ideas in modern panpsychism. The problem for this is the ontological differences between modern naturalistic panpsychism and Leibniz’s classical panpsychism. The article proposes three different strategies for dealing with this problem related to three interpretations of Leibniz’s philosophy. First, it is possible to limit ourselves to considering physics as a set of structural phenomena derived from the activity of monads. Second, it is possible to try to show that there is some other, non-causal, type of relationship between the monads. Third, it is possible to consider this system as naturalistic pantheism and assume that God is a mediator and a common non-spatial coordinate system through which the monads agree with each other. (shrink)