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Profile: Casey O'Callaghan (Washington University in St. Louis)
  1. Casey O'Callaghan, Pitch.
    Some sounds have pitch, some do not. A tuba’s notes are lower pitched than a flute’s, but the fuzz from an untuned radio has no discernible pitch. Pitch is an attribute in virtue of which sounds that possess it can be ordered from “low” to “high”. Given how audition works, physics has taught us that frequency determines what pitch a sound auditorily appears to have.
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  2. Casey O'Callaghan (forthcoming). Speech Perception. In Mohan Matthen (ed.), Oxford Handbook of the Philosophy of Perception. Oxford.
    Is speech special? This paper evaluates the evidence that speech perception is distinctive when compared with non-linguistic auditory perception. It addresses the phenomenology, contents, objects, and mechanisms involved in the perception of spoken language. According to the account it proposes, the capacity to perceive speech in a manner that enables understanding is an acquired perceptual skill. It involves learning to hear language-specific types of ethologically significant sounds. According to this account, the contents of perceptual experience when listening to familiar speech (...)
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  3. Casey O'Callaghan (2015). Not All Perceptual Experience is Modality Specific. In Dustin Stokes, Mohan Matthen & Stephen Biggs (eds.), Perception and Its Modalities. Oxford. 133-165.
    This paper presents forms of multimodal perceptual experience that undermine the claim that each aspect of perceptual experience is modality specific. In particular, it argues against the thesis that all phenomenal character is modality specific (even making an allowance for co-conscious unity). It concludes that a multimodal perceptual episode may have phenomenal features beyond those that are associated with the specific modalities.
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  4. Casey O'Callaghan (2014). Audible Independence and Binding. In Richard Brown (ed.), Consciousness Inside and Out: Phenomenology, Neuroscience, and the Nature of Experience. Springer Studies in Brain and Mind.
  5. Casey O'Callaghan (2014). Auditory Perception. Stanford Encyclopedia of Philosophy 2009.
  6. Casey O'Callaghan (2014). Intermodal Binding Awareness. In David J. Bennett & Christopher S. Hill (eds.), Sensory Integration and the Unity of Consciousness. MIT. 73-103.
    It is tempting to hold that perceptual experience amounts to a co-conscious collection of visual, auditory, tactual, gustatory, and olfactory episodes. If so, each aspect of perceptual experience on each occasion is associated with a specific modality. This paper, however, concerns a core variety of multimodal perceptual experience. It argues that there is perceptually apparent intermodal feature binding. I present the case for this claim, explain its consequences for theorizing about perceptual experience, and defend it against objections. I maintain that (...)
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  7. Casey O'Callaghan (2013). Hearing, Philosophical Perspectives. In H. Pashler (ed.), Encyclopedia of the Mind. SAGE. 388-390.
    Hearing and auditory perception are rapidly developing topics in the philosophy of perception. Recent work has focused on characterizing what we hear and on similarities and differences between audition and other modalities. Future work should address how theorizing about audition impacts theorizing about perception more generally. This entry concerns questions about the objects and contents of hearing. It includes discussion of the spatial content of audition, of the role of time and pitch in the individuation of auditory objects, and of (...)
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  8. Casey O'Callaghan (2012). Perception. In W. Ramsey & K. Frankish (eds.), The Cambridge Handbook of Cognitive Science. Cambridge University Press.
    To appear in the Cambridge Handbook to Cognitive Science, eds. Ramsey and Frankish.
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  9. Casey O'Callaghan (2012). Perception and Multimodality. In Eric Margolis, Richard Samuels & Stephen Stich (eds.), The Oxford Handbook of Philosophy of Cognitive Science. Oxford.
    Philosophers and cognitive scientists of perception by custom have investigated individual sense modalities in relative isolation from each other. However, perceiving is, in a number of respects, multimodal. The traditional sense modalities should not be treated as explanatorily independent. Attention to the multimodal aspects of perception challenges common assumptions about the content and phenomenology of perception, and about the individuation and psychological nature of sense modalities. Multimodal perception thus presents a valuable opportunity for a case study in mature interdisciplinary cognitive (...)
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  10. Casey O'Callaghan (2011). Against Hearing Meanings. Philosophical Quarterly 61 (245):783-807.
    Listening to speech in a language you know differs phenomenologically from listening to speech in an unfamiliar language, a fact often exploited in debates about the phenomenology of thought and cognition. It is plausible that the difference is partly perceptual. Some contend that hearing familiar language involves auditory perceptual awareness of meanings or semantic properties of spoken utterances; but if this were so, there must be something distinctive it is like auditorily to perceptually experience specific meanings of spoken utterances. However, (...)
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  11. Casey O'Callaghan (2011). Hearing Properties, Effects or Parts? Proceedings of the Aristotelian Society 111 (3pt3):375-405.
    Sounds are audible, and sound sources are audible. What is the audible relation between audible sounds and audible sources? Common talk and philosophy suggest three candidates. The first is that sounds audibly are properties instantiated by their sources. I argue that sounds are audible individuals and thus are not audibly instantiated by audible sources. The second is that sounds audibly are effects of their sources. I argue that auditory experience presents no compelling evidence that sounds audibly are causally related to (...)
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  12. Casey O'Callaghan (2011). Lessons From Beyond Vision (Sounds and Audition). Philosophical Studies 153 (1):143-160.
    Recent work on non-visual modalities aims to translate, extend, revise, or unify claims about perception beyond vision. This paper presents central lessons drawn from attention to hearing, sounds, and multimodality. It focuses on auditory awareness and its objects, and it advances more general lessons for perceptual theorizing that emerge from thinking about sounds and audition. The paper argues that sounds and audition no better support the privacy of perception’s objects than does vision; that perceptual objects are more diverse than an (...)
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  13. Casey O'Callaghan (2011). On Privations and Their Perception. Acta Analytica 26 (2):175-186.
    Despite its admirable bottom-up methodology, Roy Sorensen's Seeing Dark Things (OUP, 2008) raises difficult theoretical questions concerning the metaphysics and perception of absences. Metaphysical difficulties include how to individuate, count, locate, and classify absences, and what determines their features. Perceptual difficulties include how to distinguish experiences of absences and presences, especially when nonveridical, and what subjects contribute to perceptual experience according to Sorensen's causal theory. In addition to articulating these difficulties, this paper also presents and explores, on Sorensen's terms, an (...)
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  14. Matthew Nudds & Casey O'Callaghan (eds.) (2010). Sounds and Perception: New Philosophical Essays. Oxford University Press.
    The views are original, and there is substantive engagement among contributors. This collection will stimulate future research in this area.
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  15. Casey O'Callaghan (2010). Constructing a Theory of Sounds. Oxford Studies in Metaphysics 5:247-270.
    Vision has dominated philosophical thinking about perceptual experience and the nature of its objects. Color has long been the focus of debates about the metaphysics of sensible qualities, and philosophers have struggled to articulate the conditions on the visual experience of mind-independent objects. With few notable exceptions, "visuocentrism" has shaped our understanding of the nature and functions of perception, and of our conception of its objects. The predominant line of thought from the early modern era to the present is that, (...)
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  16. Casey O'Callaghan (2010). Experiencing Speech. Philosophical Issues 20 (1):305-332.
  17. Casey O'Callaghan (2010). Perceiving the Locations of Sounds. Review of Philosophy and Psychology 1 (1):123--140.
    Frequently, we learn of the locations of things and events in our environment by means of hearing. Hearing, I argue, is a locational mode of perceiving with a robustly spatial nature. I defend three proposals. First, audition furnishes information about the locations of things and events in one's environment because auditory experience itself is spatial. Audition represents space. Second, we hear the locations of things and events by or in hearing locational information about their sounds. Third, we auditorily experience sounds (...)
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  18. Casey O'Callaghan (2009). Audition. In John Symons & Paco Calvo (eds.), The Routledge Companion to Philosophy of Psychology. Routledge.
    Provides the theoretical and psychological framework to the philosophy of sounds and audition. I address auditory scene analysis, spatial hearing, the audible qualities, and cross-modal interactions.
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  19. Casey O'Callaghan (2009). Introduction: The Philosophy of Sounds and Auditory Perception. In Matthew Nudds & Casey O'Callaghan (eds.), Sounds and Perception: New Philosophical Essays. Oxford University Press.
  20. Casey O'Callaghan (2009). Sounds. In Timothy J. Bayne, Axel Cleeremans & P. Wilken (eds.), Oxford Companion to Consciousness. Oup.
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  21. Casey O'Callaghan (2009). Sounds and Events. In Matthew Nudds & Casey O'Callaghan (eds.), Sounds and Perception: New Philosophical Essays. Oxford University Press. 26--49.
    I argue that sounds are best conceived not as pressure waves that travel through a medium, nor as physical properties of the objects ordinarily thought to be the sources of sounds, but rather as events of a certain kind. Sounds are particular events in which a surrounding medium is disturbed or set into wavelike motion by the activities of a body or interacting bodies. This Event View of sounds provides for a uni- ?ed perceptual account of several pervasive sound phenomena, (...)
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  22. Casey O'Callaghan (2009). The World of Sounds. The Philosophers' Magazine (45):63-69.
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  23. Casey O'Callaghan (2008). Object Perception: Vision and Audition. Philosophy Compass 3 (4):803-829.
    Vision has been the primary focus of naturalistic philosophical research concerning perception and perceptual experience. Guided by visual experience and vision science, many philosophers have focused upon theoretical issues dealing with the perception of objects. Recently, however, hearing researchers have discussed auditory objects. I present the case for object perception in vision, and argue that an analog of object perception occurs in auditory perception. I propose a notion of an auditory object that is stronger than just that of an intentional (...)
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  24. Casey O'Callaghan (2008). Seeing What You Hear: Cross-Modal Illusions and Perception. Philosophical Issues 18 (1):316-338.
    Cross-modal perceptual illusions occur when a stimulus to one modality impacts perceptual experience associated with another modality. Unlike synaesthesia, cross-modal illusions are intelligible as results of perceptual strategies for dealing with sensory stimulation to multiple modalities, rather than as mere quirks. I argue that understanding cross-modal illusions reveals an important flaw in a widespread conception of the senses, and of their role in perceptual experience, according to which understanding perception and perceptual experience is a matter of assembling independently viable stories (...)
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  25. Casey O'Callaghan (2007). Echoes. The Monist 90 (3):403-414.
    Echo experiences are illusory experiences of ordinary primary sounds. Just as there is no new object that we see at the surface of a mirror, there is no new sound that we hear at a reflecting surface. The sound that we hear as an echo just is the original primary sound, though its perception involves illusions of place, time, and qualities. The case of echoes need not force us to adopt a conception according to which sounds are persisting object-like particulars (...)
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  26. Casey O'Callaghan (2007). Sounds: A Philosophical Theory. Oxford University Press.
    ... ISBN0199215928 ... -/- Abstract: Vision dominates philosophical thinking about perception, and theorizing about experience in cognitive science traditionally has focused on a visual model. This book presents a systematic treatment of sounds and auditory experience. It demonstrates how thinking about audition and appreciating the relationships among multiple sense modalities enriches our understanding of perception. It articulates the central questions that comprise the philosophy of sound, and proposes a novel theory of sounds and their perception. Against the widely accepted philosophical (...)
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  27. Casey O'Callaghan (2006). Cross-Modal Illusions and Perceptual Content: Lessons From Cross-Modal Illusions. Electroneurobiolog 14 (2):211-224.
    I argue that a class of recently-discovered cross-modal illusions gives reason to posit a dimension of content shared across perceptual modalities and to abandon the traditional view according to which perceptual content is exclusively constituted by discrete modality-specific contents.
     
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