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"O'Callaghan, Casey"
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Objects for multisensory perception
Object perception deploys a suite of perceptual capacities that constrains attention, guides reidentification, subserves recognition, and anchors demonstrative thought. Objects for perception—perceptual objects—are the targets of such capacities. Characterizing perceptual objects for multisensory perception faces two puzzles. First is the diversity of objects across sensory modalities. Second is the unity of multisensory perceptual objects. This paper resolves the puzzles. Objects for perception are structured mereologically complex individuals. Perceptual objects are items that bear perceptible features and have perceptible parts arranged to form a unified whole. This circumscribes the targets of object perception where neutral talk concerning intentional objects and objects of perception cannot. Nonetheless, it is more permissive than identifying perceptual objects with material bodies, which excludes too much and leans too heavily on vision. The account thus is tailored to capture the role of objects in perception beyond vision: tactual, auditory, and olfactory objects are individuals with differing structures. Its flexibility also enables the account to accommodate shared objects for multisensory perception: multisensory perceptual objects are mereologically complex individuals with hybrid structure. For instance, one can bimodally perceive a common whole with parts accessible to one but not both modalities. Each sense provides a partial perspective on a complex whole that is perceptible through the coordinated use of multiple senses. Understanding perceptual objects as structured mereologically complex individuals thus provides a theoretically useful notion of an object for multisensory perception that resolves the puzzles of diversity and of unity.
Journal Article
THE MULTISENSORY CHARACTER OF PERCEPTION
Sense perception matters because it is their most intimate form of acquaintance with concrete things and happenings independent from themselves. Perception furnishes materials for thought, grounds empirical beliefs, and guides actions. According to an influential assumption, whether or not cognition is amodal, all perception is modality specific. This assumption is his target. Here, O'Callaghan argues for this conclusion on the grounds that certain forms of multimodal perceptual experience are incompatible with the claim that each aspect of a perceptual experience is associated with some specific modality or another.
Journal Article
Lessons from beyond vision (sounds and audition)
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 exclusively visual perspective suggests; and that multimodality is rampant. In doing so, it presents an account according to which audition affords awareness as of not just sounds, but also environmental happenings beyond sounds.
Journal Article
Perceiving the Locations of Sounds
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 phenomenology. I defend three proposals. First, audition furnishes one with information about the locations of things and happenings in one’s environment because auditory experience itself has spatial content—auditory experience involves awareness of space. Second, we hear the locations of things and events by or in hearing the locations of their sounds. Third, we auditorily experience sounds themselves as having relatively stable distal locations. I reject skepticism about spatial audition and auditory experience tracing to Strawson’s
Individuals
, and suggest that spatial auditory experience grounds a form of perceptual access to objects and events that is critical to negotiating one’s environment.
Journal Article
On Privations and Their Perception
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 alternative account of silence.
Journal Article
AGAINST HEARING MEANINGS
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, an argument from homophony shows that auditory experiences do not resolve differences in meaning not marked by differences in sound. I propose an alternative explanation of the perceptual phenomenal difference in terms of perceptual awareness of language-specific but non-semantic features.
Journal Article
XIII-Hearing Properties, Effects or Parts?
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 audible sources. The third is that sounds audibly are related mereologically to their sources. I present and offer a defence of this third candidate.
Journal Article
Intermodal Binding Awareness
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 chapter, however, concerns a core variety of multimodal perceptual experience. It argues that there is perceptually apparentintermodalfeature binding. I present the case for this claim, explain its consequences for theorizing about perceptual experience, and defend it against objections. I maintain that just as one thing may perceptually appear at once to jointly bear several features associated with the same sense
Book Chapter