In the present paper, we will attempt to gain hints regarding the nature of tactile awareness in humans. At first, we will review some recent literature showing that an actual tactile experience can emerge in absence of any tactile stimulus (e.g., tactile hallucinations, tactile illusions). According to the current model of tactile awareness, we will subsequently argue that such (false) tactile perceptions are subserved by the same anatomo-functional mechanisms known to underpin (...) actual perception. On these bases, we will discuss the hypothesis that tactile awareness is strongly linked to expected rather than actual stimuli. Indeed, this hypothesis is in line with the notion that the human brain has a strong predictive, rather than reactive, nature. (shrink)

Because philosophical reflections on touch usually start from our ability to perceive properties of objects, they tend to overlook features of touch that are crucial to correct understanding of tactual perception. This paper brings out these features and uses them to develop a general reconception of the sense of touch. I start by taking a fresh look at our ability to feel, in order to reveal its vital role. This sheds a different light on the skin's perceptual potential. While it (...) is commonly observed that tactile experiences have two intentional objects, an external object and one's own body, I will advance a more accurate alternative: in tactile experiences, one becomes aware of what one's body undergoes. This alternative not only fits better with tactility's vital role; it is also key to explaining how active touching provides for a unique contribution to our perceptual relation to material objects. By thus connecting tactility's vital role to the way we rely on touch while manipulating objects, this essay offers a cross-sectional survey of our tactile powers that reveals the interplay between sensing and touching. (shrink)

People can maintain accurate representations of visual changes without necessarily being aware of them. Here, we investigate whether a similar phenomenon also exists in touch. In Experiments 1 and 2, participants detected the presence of a change between two consecutively-presented tactile displays. Tactile change blindness was observed, with participants failing to report the presence of tactile change. Critically, however, when participants had to make a forced choice response regarding the number of stimuli presented in the two displays, (...) their performance was significantly better than chance . Experiment 3 demonstrated that tactile change detection does not necessarily involve a shift of spatial attention toward the location of change, regardless of whether the change is explicitly detected. We conclude that tactile change detection likely results from comparing representations of the two displays, rather than by directing spatial attention to the location of the change. (shrink)

According to rich views of consciousness (e.g., James, Searle), we have a constant, complex flow of experience (or 'phenomenology') in multiple modalities simultaneously. According to thin views (e.g., Dennett, Mack and Rock), conscious experience is limited to one or a few topics, regions, objects, or modalities at a time. Existing introspective and empirical arguments on this issue (including arguments from 'inattentional blindness') generally beg the question. Participants in the present experiment wore beepers during everyday activity. When a beep sounded, they (...) were to take note of the conscious experience, if any, they were having at the last undisturbed moment immediately prior to the beep. Some participants were asked to report any experience they could remember. Others were asked simply to report whether there was visual experience or not (and if so, what it was). Still others were asked about experience in the far right visual field, or tactile experience, or tactile experience in the left foot. A majority of participants in the full experience and the visual conditions reported visual experience in every single sample. Tactile and peripheral visual experience were reported less often. However, the proper interpretation of these results is uncertain. (shrink)

In this paper, we report the case of an Inclusive Design workshop. Inclusive Design is a design method that includes elderly and disabled people not only in interviews, but also in the upstream design process such as basic design and survey analysis. In the workshop, participants designed scientific educational materials that visually impaired and sighted people can use together. To work together regardless of visual disability, participants used the image-processing system and the stereo copying machine to make images tactile. (...) We think that collaborative work with elderly and disabled people in Inclusive Design can teach participants different perspectives and help to correct their biased view of each other. In fact, participants of the workshop noticed several facts that they were not aware of before. That is, the Inclusive Design workshop can improve social awareness. (shrink)

People’s awareness of tactile stimuli has been investigated in far less detail than their awareness of stimuli in other sensory modalities. In an attempt to fill this gap, we provide an overview of studies that are pertinent to the topic of tactile consciousness. We discuss the results of research that has investigated phenomena such as “change blindness”, phantom limb sensations, and numerosity judgments in tactile perception, together with the results obtained from the study of patients (...) affected by deficits that can adversely affect tactile perception such as neglect, extinction, and numbsense. The similarities as well as some of the important differences that have emerged when visual and tactile conscious information processing have been compared using similar experimental procedures are highlighted. We suggest that conscious information processing in the tactile modality cannot be separated completely from the more general processing of spatial information in the brain. Finally, the importance of considering tactile consciousness within the larger framework of multisensory information processing is also discussed. (shrink)

This article focuses on the question of how we perceive and represent ourselves at the most minimal, pre-reflective level. We first review recent work emphasizing the multisensory basis of our perceptual experiences and the embodied nature of self-awareness. We then focus on interoceptive and tactile signals, as key components of bodily self-consciousness, and discuss one crucial yet overlooked aspect of our embodiment, namely the fact that bodily self-consciousness emerges from the outset within the body of another experiencing subject. (...) Next, we review empirical findings highlighting the developmental primacy of tactile and interoceptive over visual experiences, in shaping the foundations of perceptual awareness. Building upon the influential predictive processing framework in philosophy and theoretical neuroscience, we argue that self-awareness is not only embodied, but also that perceptual experiences are fundamentally 'selfish', that is, imperatively driven by basic constraints of physiological regulation that subserve self-preservation. We then evaluate. (shrink)

Change blindness, the surprising inability of people to detect significant changes between consecutively-presented visual displays, has recently been shown to affect tactile perception as well. Visual change blindness has been observed during saccades and eye blinks, conditions under which people’s awareness of visual information is temporarily suppressed. In the present study, we demonstrate change blindness for suprathreshold tactile stimuli resulting from the execution of a secondary task requiring bodily movement. In Experiment 1, the ability of participants to (...) detect changes between two sequentially-presented vibrotactile patterns delivered on their arms and legs was compared while they performed a secondary task consisting of either the execution of a movement with the right arm toward a visual target or the verbal identification of the target side. The results demonstrated that a motor response gave rise to the largest drop in perceptual sensitivity in detecting changes to the tactile display. In Experiment 2, we replicated these results under conditions in which the participants had to detect tactile changes while turning a steering wheel instead. These findings are discussed in terms of the role played by bodily movements, sensory suppression, and higher order information processing in modulating people’s awareness of tactile information across the body surface. (shrink)

Until the 1970s, models of early infancy tended to depict the young child as internally preoccupied and incapable of processing visual-tactile data from the external world. Meltzoff and Moore's groundbreaking studies of neonatal imitation disprove this characterization of early life: They suggest that the infant is cognizant of its external environment and is able to control its own body. Taking up these experiments, theorists argue that neonatal imitation provides an empirical justification for the existence of an innate ability to (...) engage in social communication. Since later imitation is taken as a benchmark for self- and other-awareness, theorists claim that a proto- or primitive self must exist in the infant. This paper takes up the issue of whether or not neonatal imitation does provide us with a ground to argue against developmental accounts that consider self-awareness to be a later acquisition. I argue that the enthusiasm over neonatal imitation is premature. Psychological studies that claim to prove neonatal imitation do not provide sufficient grounds for dismissing alternate philosophical and psychological theories about the self as being a post-birth "event" rather than an intrinsic condition. Therefore, I argue that there is no compelling reason to suppose that we come to the world with a primitive sense of self- or other-awareness. (shrink)

In a recent paper, Fredérique de Vignemont has argued that there is a positive quale of bodily ownership . She thinks that tactile and other forms of somatosensory phenomenology incorporate a distinctive feeling of myness and takes issue with my defense in Bermúdez of a deflationary approach to bodily ownership. That paper proposed an argument deriving from Elizabeth Anscombe’s various discussions of what she terms knowledge without observation . De Vignemont is not convinced and appeals to the Rubber Hand (...) Illusion to undercut my appeal to Anscombe. Section 1 of this article restates the case against the putative quale of ownership. Section 2 explains why de Vignemonts’ objections miss the mark. Section 3 discusses in more detail how to draw a principled distinction between bodily awareness and ordinary perceptual awareness. (shrink)

In this article, we explore the effect of a modification of one aspect of body awareness, the so-called sense of body-ownership, on pain perception. In order to do so, we modify body-ownership in healthy participants by using a visuo-tactile illusion called the 'rubber hand illusion'.We combine the classical experimental paradigm of the RHI with a method to induce pain by thermal stimulation. We present and discuss two experiments that show interesting but conflicting results. In the first experiment our (...) results show the RHI has the effect of decreasing pain estimations, whereas in the second experiment the RHI has the effect of increasing pain estimations. We discuss the different factors that could be involved in this difference, and suggest that different types of changes in participants' body schema might have been involved in the two experiments. We propose that an approach that considers participants' subjective experience of the illusion will help us to solve this puzzle. (shrink)

Since Aristotle, touch has been found especially hard to define. One of the few unchallenged intuition about touch, however, is that tactile awareness entertains some especially close relationship with bodily awareness. This article considers the relation between touch and bodily awareness from two different perspectives: the body template theory and the body map theory. According to the former, touch is defined by the fact that tactile content matches proprioceptive content. We raise some objections against such (...) a bodily definition of touch and suggest, as an alternative, to revive the proposal according to which touch is essentially a sense of pressure. According to the body map theory, tactile sensations are localized within the frame of reference provided by the mental representation of the space of the body. We argue that this approach of the location of bodily sensations fares better that the Local Sign theory that denies intrinsic spatiality to touch. (shrink)

Reduced Environmental Stimulation Therapy (REST) alters the balance of sensory input to the nervous system by systematically attenuating sensory signals from visual, auditory, thermal, tactile, vestibular, and proprioceptive channels. Previous research from our group has shown that REST via floatation acutely reduces anxiety and blood pressure while simultaneously heightening interoceptive awareness in clinically anxious populations. Anorexia nervosa (AN) is an eating disorder characterized by elevated anxiety, distorted body representation, and abnormal interoception, raising the question of whether REST might (...) positively impact these symptoms. However, this approach has never been studied in eating disorders and it is unknown whether exposure to REST might worsen AN symptoms. To examine these possibilities we conducted an open-label study to investigate the safety and tolerability of REST in AN. We also explored the impact of REST on affective symptoms, body image disturbance, and interoception. Twenty-one partially weight-restored AN outpatients completed a protocol involving four sequential sessions of REST: reclining in a zero-gravity chair, floating in an open pool, and two sessions of floating in an enclosed pool. All sessions were 90 minutes, approximately one week apart. We measured orthostatic blood pressure before and immediately after each session (primary outcome), in addition to collecting blood pressure readings every 10 minutes during the session using a wireless waterproof system as a secondary outcome measure. Each participant's affective state, awareness of interoceptive sensations, and body image was assessed before and after every session (exploratory outcomes). There was no evidence of orthostatic hypotension following floating, and no adverse events (primary outcome). Secondary analyses revealed that REST induced statistically significant reductions in blood pressure, anxiety and negative affect, heightened awareness of cardiorespiratory but not gastrointestinal sensations, and reduced body image dissatisfaction. The findings from this initial trial suggest that individuals with AN can safely tolerate the physical effects of REST via floatation. Future randomized controlled trials will need to investigate whether these initial observations of improved anxiety, interoception, and body image disturbance can be effectively extended to acutely ill AN populations. (shrink)

We become aware of our bodies interoceptively, by processing signals arising from within the body, and exteroceptively, by processing signals arising on or outside the body. Recent research highlights the importance of the interaction of exteroceptive and interoceptive signals in modulating bodily self-consciousness. The current study investigated the effect of social self-focus, manipulated via a video camera that was facing the participants and that was either switched on or off, on interoceptive sensitivity and on tactile perception ). The results (...) indicated a significant effect of self-focus on SSDT performance, but not on interoception. SSDT performance was not moderated by interoceptive sensitivity, although interoceptive sensitivity scores were positively correlated with false alarms, independently of self-focus. Together with previous research, our results suggest that self-focus may exert different effects on body perception depending on its mode . While interoception has been previously shown to be enhanced by private self-focus, the current study failed to find an effect of social self-focus on interoceptive sensitivity, instead demonstrating that social self-focus improves exteroceptive somatosensory processing. (shrink)

Control consciousness is the awareness or experience of seeming to be in control of one’s actions. One view, which I will be arguing against in the present paper, is that control consciousness is a form of sensory consciousness. In such a view, control consciousness is exhausted by sensory elements such as tactile and proprioceptive information. An opposing view, which I will be arguing for, is that sensory elements cannot be the whole story and must be supplemented by direct (...) contributions of nonsensory, motor elements. More specifically, I will be arguing for the view that the neural basis of control consciousness is constituted by states of recurrent activation in relatively intermediate levels of the motor hierarchy. (shrink)

We investigated how motor agency in the voluntary control of body movement influences body awareness. In the Rubber Hand Illusion , synchronous tactile stimulation of a rubber hand and the participant’s hand leads to a feeling of the rubber hand being incorporated in the participant’s own body. One quantifiable behavioural correlate of the illusion is an induced shift in the perceived location of the participant’s hand towards the rubber hand. Previous studies showed that the induced changes in body (...) awareness are local and fragmented: the proprioceptive drift is largely restricted to the stimulated finger. In the present study, we investigated whether active and passive movements, rather than tactile stimulation, would lead to similarly fragmented body awareness. Participants watched a projected image of their hand under three conditions: active finger movement, passive finger movement, and tactile stimulation. Visual feedback was either synchronous or asynchronous with respect to stimulation of the hand. A significant overall RHI, defined as greater drifts following synchronous than asynchronous stimulation, was found in all cases. However, the distribution of the RHI across stimulated and non-stimulated fingers depended on the kind of stimulation. Localised proprioceptive drifts, specific to the stimulated finger, were found for tactile and passive stimulation. Conversely, during active movement of a single digit, the proprioceptive drifts were not localised to that digit, but were spread across the whole hand. Whereas a purely proprioceptive sense of body-ownership is local and fragmented, the motor sense of agency integrates distinct body-parts into a coherent, unified awareness of the body. (shrink)

In 1975, Colwyn Trevarthen first presented his groundbreaking explorations into the early origins of human intersubjectivity. His influential model dictates that, during intimate and playful spontaneous face-to-face protoconversations, the emotions of both the 2–3-month-old infant and mother are nonverbally communicated, perceived, mutually regulated, and intersubjectively shared. This primordial basic interpersonal interaction is expressed in synchronized rhythmic-turn-taking transactions that promote the intercoordination and awareness of positive brain states in both. In this work, I offer an interpersonal neurobiological model of Trevarthen’s (...) intersubjective protoconversations as rapid, reciprocal, bidirectional visual-facial, auditory-prosodic, and tactile-gestural right brain-to-right brain implicit nonverbal communications between the psychobiologically attuned mother and the developing infant. These co-constructed positive emotional interactions facilitate the experience-dependent maturation of the infant’s right brain, which is in an early critical period of growth. I then address the central role of interpersonal synchrony in intersubjectivity, expressed in a mutual alignment or coupling between the minds and bodies of the mother and infant in face-to-face protoconversations, as well as how these right brain-to-right brain emotional transmissions generate bioenergetic positively charged interbrain synchrony within the dyad. Following this, I offer recent brain laterality research on the essential functions of the right temporoparietal junction, a central node of the social brain, in face-to-face nonverbal communications. In the next section, I describe the ongoing development of the protoconversation over the 1st year and beyond, and the co-creation of a fundamental energy-dependent, growth-promoting social emotional matrix that facilitates the emergence of the highly adaptive human functions of mutual play and mutual love. In the final section, I discuss the clinical applications of this interpersonal neurobiological model of intersubjectivity, which has a long history in the psychotherapy literature. Toward that end, I offer very recent paradigm-shifting hyperscanning research that simultaneously measures both the patient and therapist during a psychotherapeutic interaction. Using the Trevarthen’s two-person intersubjective model, this research demonstrates changes in both brains of the therapeutic dyad and the critical role of nonverbal communications in an emotionally-focused psychotherapy session. These studies specifically document interbrain synchronization between the right temporoparietal junction of the patient and the right temporoparietal junction of the clinician, a right brain-to-right brain nonverbal communication system in the co-constructed therapeutic alliance. Lastly, I discuss the relationship between the affect communicating functions of the intersubjective motivational system and the affect regulating functions of the attachment motivational system. (shrink)

Under normal circumstances, we experience that our center of awareness is located behind our eyes and inside our own body. To learn more about the perceptual processes that underlie this tight coupling between the spatial dimensions of our consciously perceived self and our physical body, we conducted a series of experiments using an ‘out-of-body illusion’. In this illusion, the conscious sense of self is displaced in the testing room by experimental manipulation of the congruency of visual and tactile (...) information and a change in the visual perspective. We demonstrate that when healthy individuals experience that they are located in a different place from their real body, they disown this body and no longer perceive it as part of themselves. Our findings are important because they reveal a relationship between the representation of self-location in the local environment and the multisensory representation of one’s own body. (shrink)

To gain a deeper understanding of consumers' brain responses during a real-time in-store exploration could help retailers to get much closer to costumers' experience. To our knowledge, this is the first time the specific role of touch has been investigated by means of a neuroscientific approach during consumer in-store experience within the field of sensory marketing. This study explores the presence of distinct cortical brain oscillations in consumers' brain while navigating a store that provides a high level of sensory arousal (...) and being allowed or not to touch products. A 16-channel wireless electroencephalogram was applied to 23 healthy participants, with interest in cosmetics but naive about the store explored. Subjects were assigned to two experimental conditions based on the chance of touching or not touching the products. Cortical oscillations were explored by means of power spectral analysis of the following frequency bands: delta, theta, alpha, and beta. Results highlighted the presence of delta, theta, and beta bands within the frontal brain regions during both sensory conditions. The absence of touch was experienced as a lack of perception that needs cognitive control, as reflected by Delta and Theta band left activation, whereas a right increase of Beta band for touch condition was associated with sustained awareness on the sensory experience. Overall, EEG cortical oscillations' functional meaning could help highlight the neurophysiological implicit responses to tactile conditions and the importance of touch integration in consumers' experience. (shrink)

The last decade has seen great progress in the study of the nature of crossmodal links in exogenous and endogenous spatial attention . Exogenous spatial cuing studies of human crossmodal attention and multisensory integration. In C. Spence, & J. Driver , Crossmodal space and crossmodal attention . Oxford, UK: Oxford University Press.], for a recent review). A growing body of research now highlights the existence of robust crossmodal links between auditory, visual, and tactile spatial attention. However, until recently, studies (...) of exogenous and endogenous attention have proceeded relatively independently. In daily life, however, these two forms of attentional orienting continuously compete for the control of our attentional resources, and ultimately, our awareness. It is therefore critical to try and understand how exogenous and endogenous attention interact in both the unimodal context of the laboratory and the multisensory contexts that are more representative of everyday life. To date, progress in understanding the interaction between these two forms of orienting has primarily come from unimodal studies of visual attention. We therefore start by summarizing what has been learned from this large body of empirical research, before going on to review more recent studies that have started to investigate the interaction between endogenous and exogenous orienting in a multisensory setting. We also discuss the evidence suggesting that exogenous spatial orienting is not truly automatic, at least when assessed in a crossmodal context. Several possible models describing the interaction between endogenous and exogenous orienting are outlined and then evaluated in terms of the extant data. (shrink)

In this paper, I give an account of a hitherto neglected kind of ‘here’, which does not work as an intentional indexical. Instead, it automatically refers to the immediate perceptual environment of the subject’s body, which is known as peripersonal space. In between the self and the external world, there is something like a buffer zone, a place in which objects and events have a unique immediate significance for the subject because they may soon be in contact with her. I (...) argue that seeing objects as being here in a minimal sense means seeing them in the place in which the perceptual system expects the world and the body to collide. I further argue that this minimal notion of here-content gives rise to a tactile sense of presence. It provides a unique experiential access to the reality of the seen object by making us aware of its ability to have an effect on us. (shrink)

Behavioural evidence suggests that cephalopod molluscs may have a form of primary consciousness. First, the linkage of brain to behaviour seen in lateralization, sleep and through a developmental context is similar to that of mammals and birds. Second, cephalopods, especially octopuses, are heavily dependent on learning in response to both visual and tactile cues, and may have domain generality and form simple concepts. Third, these animals are aware of their position, both within themselves and in larger space, including having (...) a working memory of foraging areas in the recent past. Thus if using a ‘global workspace’ which evaluates memory input and focuses attention is the criterion, cephalopods appear to have primary consciousness. (shrink)

The sense of touch provides us knowledge of two kinds of events. Tactile sensation (T) makes us aware of events on or just below the skin; haptic perception (H) gives us knowledge of things outside the body with which we are in contact. This paper argues that T and H are distinct experiences, and not (as some have argued) different aspects of the same touch-experience. In other words, T ≠ H. Moreover, H does not supervene on T. Secondly: In (...) T, we are aware of immanent, phenomenal qualities; in H, we come to know of transcendent qualities in things that exist independently of ourselves. Finally: T is non-spatial; it is indexed by parts of the body, but not by position in space. H, by contrast, is spatial. This brings to mind Kant’s contention that things are presented as existing objectively when they are represented spatially. (shrink)

The present study examined what participants perceive of their hand movements when using a tool. In the experiments different gains for either the x-axis or the y-axis perturbed the relation between hand movements on a digitizer tablet and cursor movements on a display. As a consequence of the perturbation participants drew circles on the display while their covered hand movements followed either vertical or horizontal ellipses on the digitizer tablet. When asked to evaluate their hand movements, participants were extremely uncertain (...) about their trajectories. By varying the amount of visual feedback, findings indicated that the low awareness of one’s own movements originated mainly from an insufficient quality of the humans’ tactile and proprioceptive system or from an insufficient spatial reconstruction of this information in memory. (shrink)

This article lays the ground for a sensuous appreciation of both the human body and the physical world. Drawing on the biographical account of the climber's embodied reflection of rock-climbing, the `climbing body' highlights our overwhelming tactile and kinaesthetic engagement with the phenomenal world. I Begin by emphasizing the need to consider the organic nature of human being, that we should understand how the awareness of death and our consequent sense of mutability provide a significant moment to remember (...) the body. I highlight how this might be achieved through the practice of adventure climbing. The increasing denial of the body's organicity, its mutability - perhaps a key impulse of modernity - is thereby usurped. This is followed by a structure of thought, based around the work of Georg Simmel, conveying the radical materiality of the phenomenal world. In doing so, I highlight the propensity of the environment to inscribe itself upon the human body. This idea is brought alive during the second half of the article, which focuses upon the climbing body and, in particular, the hands of the climber. As they navigate vertical ground climbers are guided by the sense of touch in order to `make sense' of the world. The climbing body orientates itself through tactile navigation: by feeling or grasp-ing its way through the world. To engage with the world tactually is to situate oneself consciously in that world and to have a potentially unmediated relationship with it. In doing so, the climber opens up the possibility for a corporeal reconceptualization of modernity. (shrink)

The reports of individuals who have had their vision restored after a long period of blindness suggest that, immediately after regaining their vision, such individuals are not able to recognize shapes by vision alone. It is often assumed that the empirical literature on sight restoration tells us something important about the relationship between visual and tactile representations of shape. However, I maintain that, immediately after having their sight restored, at least some newly sighted individuals undergo visual experiences that instantiate (...) basic shape phenomenology but which do not present (that is, neither represent nor involve acquaintance with) the corresponding shape properties. Consequently, the empirical literature on sight restoration tells us something important about the role that perceptual phenomenology plays in our perceptual awareness of an object’s properties—it tells us that the properties presented by perceptual experiences are not determined by or “built into” perceptual phenomenology. In addition, I maintain that the evidence concerning sight restoration suggests an alternative theory concerning the role that sensory phenomenology plays in our perceptual awareness of an object’s properties. Specifically, it suggests that, while not inherently representational, sensory phenomenal properties can serve as vehicles for the representation of an object’s properties. (shrink)

In the last decade, philosophy, neuroscience and psychology alike have paid increasing attention to the study of interpersonal affective touch, which refers to the emotional and motivational facets of tactile sensation. Some aspects of affective touch have been linked to a neurophysiologically specialised system, namely the C tactile system. While the role of this system for affiliation, social bonding and communication of emotions have been widely investigated, only recently researchers have started to focus on the potential role of (...) interpersonal affective touch in acquiring awareness of the body as our own, i.e. as belonging to our psychological ‘self’. We review and discuss recent developmental and adult findings, pointing to the central role of interpersonal affective touch in body awareness and social cognition in health and disorders. We propose that interpersonal affective touch, as an interoceptive modality invested of a social nature, can uniquely contribute to the ongoing debate in philosophy about the primacy of the relational nature of the minimal self. (shrink)

In the last decade, philosophy, neuroscience and psychology alike have paid increasing attention to the study of interpersonal affective touch, which refers to the emotional and motivational facets of tactile sensation. Some aspects of affective touch have been linked to a neurophysiologically specialised system, namely the C tactile system. While the role of this system for affiliation, social bonding and communication of emotions have been widely investigated, only recently researchers have started to focus on the potential role of (...) interpersonal affective touch in acquiring awareness of the body as our own, i.e. as belonging to our psychological ‘self’. We review and discuss recent developmental and adult findings, pointing to the central role of interpersonal affective touch in body awareness and social cognition in health and disorders. We propose that interpersonal affective touch, as an interoceptive modality invested of a social nature, can uniquely contribute to the ongoing debate in philosophy about the primacy of the relational nature of the minimal self. (shrink)

This study reviews research about the recognition of one’s own face and discusses scientific techniques to investigate differences in brain activation when looking at familiar faces compared to unfamiliar ones. Our analysis highlights how people do not possess a perception of their own face that corresponds precisely to reality, and how the awareness of one’s face can also be modulated by means of the enfacement illusion. This illusion allows one to maintain a sense of self at the expense of (...) a precise discrimination of self-face. The internal dynamics of different brain processes, associated with the construction of bodily identity and the sense of self and capable of integrating signals from different sensory channels, particularly visual and tactile, create a mirror-mask effect. According to this effect, the self-face reflected by a mirror becomes a mask for the self, which has the features of the subject’s face, but nonetheless does not correspond perfectly to its characteristics. This poses interesting questions about the nature and construction of one’s self, as self-face reflections allow the mind to mediate between analogue and virtual reality, between past and future events, between memories and plans of action and, most importantly, between beliefs about our identities. (shrink)

The experience of one’s body as one’s own is normally referred to as one’s “bodily sense of ownership” (BSO). Despite its centrality and importance in our lives, BSO is highly elusive and complex. Different psychopathologies demonstrate that a BSO is unnecessary and that it is possible to develop a limited BSO that extends beyond the borders of one’s biological body. Therefore, it is worth asking: what grounds one’s BSO? The purpose of this paper is to sketch a preliminary answer to (...) the ‘grounding question.’ Thus, I begin by briefly presenting some contemporary competing hypotheses concerning the ‘grounding question’ and explain why they seem unsatisfying. Second, I discuss the “dual-aspect” of bodily awareness, which is manifest in every normal tactile experience and consists in a subject-object structure of awareness. I then argue that the “dual-aspect” of bodily awareness has the potential of explaining BSO and can, therefore, be considered its grounds. Taking the “dual-aspect” of bodily awareness as the grounds of BSO manages to escape difficulties faced by contemporary hypotheses concerning BSO, fulfills certain necessary demands upon any account of BSO, and explains relevant empirical findings and psychopathologies. Consequently, I argue that it is a hypothesis worth pursuing. (shrink)

In remote regions of the eastern Andaman, into the 1990s, a remarkable rapport with nature's forces was occurring.1 Most strikingly expressed during adolescence, it emerged spontaneously from a local type of consciousness. Both the capability and the underlying consciousness were conceived within a pervasive milieu of lushly sensual infant nurture.2 So dependable was the pattern of affection, it spawned a tactile language long before onset of speech. Speech, learning and sociality then followed in the eros‐driven paradigm already set. So (...) did a rare rapport with nature's forces.With nothing in the culture to discourage it, eros was not walled‐off as children grew. It remained firmly at the root of consciousness on through teens. To be a child out in those seas was to move spontaneously and digressively out into life pursuing sundry passion pulses. When erotic power escalated during adolescence, rapport with natural forces dramatically increased. Spectacular gambolings with nature began bursting forth—sometimes astonishingly complex rhythmic ones. No clouds of moody adolescent angst discouraged spontaneity; no flattening of affect suppressed adolescent verve; no emotional dissimulation confounded purpose. Adolescence was a time for a blossoming of affect, for melding deeply and dynamically with habitat. It was a time to profoundly dance with nature's forces.Possessing a protean character, love lies more fluidly within the human frame than language. Following its own inner protocols, love seems able to evade the stable kinds of labeling required for logical inquiry. In exotic cultures it is hard to see at all. In the eastern Andaman, its workings were initially invisible to Western eyes. It was necessary to firm up subliminal awarenesses before the workings out of eros could even be detected there. Though difficult to deal with scientifically, love plays such a profound role in the affairs of humankind that it begs experimental types of scrutiny.A fracturing of love into Bacchanalian and Sublime occurred during the early Greek foundations of Western culture. Out of that schism Western ethos grew. The ethos molded the Western type of consciousness. In the eastern Andaman, eros was not cleaved at all. It shaped a type of psyche not countenanced by the West since its prehistory. (shrink)

The paper identifies in Cartesian dualism a common target of the middle Wittgenstein and the early Merleau-Ponty. By relegating pain to mental awareness and location to bodily extension, Cartesian dualism renders common localizations of pain throughout the body as unintelligible ascriptions. Wittgenstein’s and Merleau-Ponty’s efforts to do justice to common localizations of pain illuminate one another. In their light, Cartesian dualism involves an objectification and a deappropriation of one’s body. Further, Wittgenstein’s acknowledgment of a heterogeneous multiplicity of corporeal spaces (...) (e.g. tactile space, feeling space) restores the view, reinforced by Merleau-Ponty, that corporeal pain is intimately related to corporeal localization, while corporeal space is not a continuation of the physical space of things. (shrink)

The paper brings a challenge to Cartesian dualism, while introducing some under-explored manuscript remarks from Wittgenstein’s middle period, which are methodologically and thematically akin to some passages from Merleau-Ponty’s early period. Cartesian dualism relegates pain to mental awareness and location to bodily extension, thus rendering common localizations of pain throughout the body as unintelligible ascriptions. Wittgenstein’s and Merleau-Ponty’s attempts at doing justice to common localizations of pain are mutually illuminating. In their light, Cartesian dualism turns out to involve an (...) objectification and a deappropriation of one’s body. Moreover, Wittgenstein’s unveiling a heterogeneous multiplicity of corporeal spaces (e.g. visual-space, tactile-space, feeling-space) rehabilitates the view, reinforced by Merleau-Ponty, that corporeal pain is intimately related to corporeal localization, while corporeal space is not part of the physical space of things. (shrink)

In consideration of the spatial structures of sensory experiences, an ‘Externality Thesis’ is commonly proposed, according to which awareness of sensory boundaries is also an awareness of the presence of a space beyond these boundaries. The paper evaluates the Externality Thesis in the context of vision and touch. More specifically, relying on mereotopological theories, it is shown that the notion of spatial boundaries is ambiguous as it encompasses various distinct ways in which entities may be connected by a (...) boundary. It is argued that only some of these ways are able to support the Externality Thesis. In particular, it is claimed that while bodily boundaries of which one is aware in tactile sensations are such that the awareness of them provides support for the Externality Thesis, the analogous claim is not true about the boundaries of the visual field. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:.. MERELY A MAN OF LETTERS" an interview with Jorge Luis Borges* Philosophy and Literature: Why don't you tell us about some of the philosophers who have influenced your work and in whom you have been the most interested? Jorge Luis Borges: Well, I think that's an easy one. You might talk in terms of two: Berkeley and Schopenhauer. But I suppose Hume might be worked in also, because, (...) after all, Hume refutes Berkeley. Really, he comes from Berkeley—even if Berkeley comes from Locke. You might think of Locke, of Berkeley, and of Hume as being three links in an argument..... But I suppose that when someone refutes someone else in philosophy, he is carrying on the argument. P&L: And Schopenhauer? Borges: Schopenhauer is very different from Hume. Of course, Schopenhauer had his idea of the Will. That is not to be found in Hume.... The case of Berkeley was different. I suppose he thought of God as being aware of all things all the time, if I don't get him wrong. If we go away, does this room disappear? No, because God is thinking about it. Now, in the case of Schopenhauer, I was rereading Die Welt als Wille und Vorstellung, The World as Will and Idea, and I was rather taken aback, or baffled I should say, puzzled by something that keeps on recurring in Schopenhauer. Of course it may have been a slip of the pen, but as he goes back to it, and as he was a very careful writer, I wonder if it is a slip of the pen. For example, Schopenhauer begins by saying that the universe, the stars, the spaces in between, the planets, *On April 14, 1976, two editors of Philosophy and Literature, along with an interested colleague, interviewed Jorge Luis Borges at Michigan State University, where he held a position as visiting professor for the winter term. These remarks are edited from the transcript of that conversation. 337 338Philosophy and Literature this planet, those things, have no existence—except in the mind which perceives them. But then, to my surprise—and I suppose you can explain this to me, since you are philosophers and I am not—what Schopenhauer says is that all those things have no existence except in the brain. And that the universe—I remember these words, I don't think I'm inventing them now—"ist ein Gehirnphänomen," that the world is a cerebral phenomenon. Now, I was baffled. Because, of course, if you think of the universe, I suppose the brain is as much a part of the external world as the stars or the moon. The brain after all is a system of visual, of tactile, perceptions. He keeps on insisting on the brain. I don't think, for example, that Bishop Berkeley insists on the brain, or Hume, who would have insisted on the mind, consciousness. P&L: People sometimes say that they see Berkeley in stories like "Orbis Tertius." Borges: Yes, I suppose they do. Well, of course. But in that story I was led by literary means also. P&L: How do you distinguish the literary from the philosophical means in that story? Could you explain that? Borges: Very easily.... Encyclopedias have been my chief reading. I have always been interested in encyclopedias. I used to go to the Biblioteca National in Buenos Aires—and since I was so shy, I felt I could not cope with asking for a book, so I looked on the shelves for the Encyclopaedia Britannica. I would pick up any chance volume and I would read it. One night I was richly rewarded, because I read all about the Druses, Dryden and the Druids—a treasure trove, no?—all in the same volume, "Dr-." Then I came to the idea of how fine it would be to think of an encyclopedia... a very rigorous one of course, of an imaginary world, where everything should be linked. For example, you would have a language and then a literature, and then a history and so on. Then I thought I would write a story of a fancy encyclopedia. Of course that would require many different people to write it... (shrink)

Dual process accounts of affective learning state that the learning of likes and dislikes reflects a learning mechanism that is distinct from the one reflected in expectancy learning, the learning of signal relationships, and has different empirical characteristics. Affective learning, for example, is said not to be affected by: (a) extinction training; (b) occasion setting; (c) cue competition; and (d) awareness of the CS-US contingencies. These predictions were tested in a series of experiments that employed simple Pavlovian conditioning procedures. (...) Neutral visual pictures of geometric shapes, or tactile conditional stimuli (CS) were paired with aversive electrotactile unconditional stimuli (US). Dependent measures were physiological (skin conductance, blink startle modulation) or verbal (US expectancy, on-line and off-line ratings of CS pleasantness). Different combinations of these dependent measures were employed across different experiments in an attempt to assess affective and expectancy learning simultaneously. Changes in CS pleasantness as indexed by ratings or blink startle modulation were readily observed. However, contrary to the predictions from dual-process accounts, results indicated that acquired CS unpleasantness is subject to extinction, occasion setting, cue competition, and not found in absence of CS-US contingency awareness. (shrink)

1. The most important aspect of touch is its relation to time and space, a relation which is established by the movement of touching itself. Referring to the ideas of E. Straus, the distinction between touching and being touched is elaborated in light of experiments done by us with animals. 2. Touching is: being in one's own limits and at the same time going beyond these limits, a situation in which the touched object is felt at the same time as (...) a "Gegenstand" and as "Mit-seiend." "Pour le tactile, c'est l'être à deux qui se place au premier rang" . The awareness of being by the sense of touch is particularly poignant in the case of touching oneself, which is an exceptional unity of the active and the passive state of mind. 3. The tactile recognition of form also presents a dialectic of activity and passivity, a dialectic which takes place in the form of a development which conquers time, and this after a scheme produced during the act of grasping itself. We refer to the studies of V. von Weizsäcker on the "Gestaltkreis." We must also remember the basic restlessness of the hand, which becomes lasting in the play of the hand with an object. 4. The hand can hold an object. In doing so a schematic tactile image is given, an image which functions as a hypothesis or as an organizing principle of the proleptic development of further tactile exploration. The phenomenological analysis of touch with the hand appears as a prefiguration of thought by synthetic judgments. Thus, it is true, as Herder remarked, and as Gold-stein and Merleau-Ponty confirmed, that perception by man and spiritual existence are identical. 5. Referring to the research of Révèsz and Palagyi, the real nature of the tactile world is anlyzed. Tactile exploration is done according to a real development, during which take place anticipatory and retrospective determinations which assure the continuity of the event and its meaning. Tactile perception permits description of the continuous unity of the discontinuous phases which we can state objectively "as if" expectation and memory, preliminary judgments and their checking, conceptual fixations and corrections had been put to work. 6. Important is the affective and emotional aspect of tactile impressions and their connection with inter-human relationships. 7. By touch, man establishes in a "feeling" way a personal relationship with the matter of things, which is hidden to the distance senses. This participation has a double aspect. It is like the birth of a "mood," of a "Befindlichkeit," but at the same time it is the active point of departure of a "feeling," of an "understanding," of an "inner grasp," of a being moved, of a being struck by the touched object which is then in our presence as a real "quale," as a material object, as a being in itself. We remember the proper nature of the caress, by which the "being together" of the caressed object complements that of the active caresser. The usual concepts by means of which, in practical and gnostic life, the most important tactile qualities are indicated intend to refer us to the characteristics of the things which take up space in the geometric world and in objectively measurable space, and on which is founded our natural orientation. We remember von Hornborstel's research on the intermodal characteristics of tactile impressions. These show us how a "knowledge" which accompanies perception can change an impression of feeling. The affective relationship, determined by a shaded "knowledge" and by a system of values, changes tangible reality, the substantiality of the body, of the "flesh." This affective change of matter, this "phenomenal transsubstantiation," easily becomes a reality in connection with objects of which we know that they belong or did belong to someone. The meaning which a thing has changes the matter of the object, an object which precisely by the touch is present "in the flesh." This is illustrated more precisely by the phenomena of fetishism, and by simple experiences of daily life. If we look for an anthropological point of view from which touch, of which the hand realizes the point of view will have to be attempted starting from the unimaginable certitude that the ontological unity of nature and spirit is in man the reality of a possible participation, a participation which, in our existence, is only indicated. The "restlessness" of the hand, never fulfilled and always searching, which we noted, is the human token of our concrete existence. Thus touch shows us what Valery remarked about the mind: "The mind is at the mercy of the body, as the blind are at the mercy of the seeing.". (shrink)

In lieu of an abstract, here is a brief excerpt of the content:.. MERELY A MAN OF LETTERS" an interview with Jorge Luis Borges* Philosophy and Literature: Why don't you tell us about some of the philosophers who have influenced your work and in whom you have been the most interested? Jorge Luis Borges: Well, I think that's an easy one. You might talk in terms of two: Berkeley and Schopenhauer. But I suppose Hume might be worked in also, because, (...) after all, Hume refutes Berkeley. Really, he comes from Berkeley—even if Berkeley comes from Locke. You might think of Locke, of Berkeley, and of Hume as being three links in an argument..... But I suppose that when someone refutes someone else in philosophy, he is carrying on the argument. P&L: And Schopenhauer? Borges: Schopenhauer is very different from Hume. Of course, Schopenhauer had his idea of the Will. That is not to be found in Hume.... The case of Berkeley was different. I suppose he thought of God as being aware of all things all the time, if I don't get him wrong. If we go away, does this room disappear? No, because God is thinking about it. Now, in the case of Schopenhauer, I was rereading Die Welt als Wille und Vorstellung, The World as Will and Idea, and I was rather taken aback, or baffled I should say, puzzled by something that keeps on recurring in Schopenhauer. Of course it may have been a slip of the pen, but as he goes back to it, and as he was a very careful writer, I wonder if it is a slip of the pen. For example, Schopenhauer begins by saying that the universe, the stars, the spaces in between, the planets, *On April 14, 1976, two editors of Philosophy and Literature, along with an interested colleague, interviewed Jorge Luis Borges at Michigan State University, where he held a position as visiting professor for the winter term. These remarks are edited from the transcript of that conversation. 337 338Philosophy and Literature this planet, those things, have no existence—except in the mind which perceives them. But then, to my surprise—and I suppose you can explain this to me, since you are philosophers and I am not—what Schopenhauer says is that all those things have no existence except in the brain. And that the universe—I remember these words, I don't think I'm inventing them now—"ist ein Gehirnphänomen," that the world is a cerebral phenomenon. Now, I was baffled. Because, of course, if you think of the universe, I suppose the brain is as much a part of the external world as the stars or the moon. The brain after all is a system of visual, of tactile, perceptions. He keeps on insisting on the brain. I don't think, for example, that Bishop Berkeley insists on the brain, or Hume, who would have insisted on the mind, consciousness. P&L: People sometimes say that they see Berkeley in stories like "Orbis Tertius." Borges: Yes, I suppose they do. Well, of course. But in that story I was led by literary means also. P&L: How do you distinguish the literary from the philosophical means in that story? Could you explain that? Borges: Very easily.... Encyclopedias have been my chief reading. I have always been interested in encyclopedias. I used to go to the Biblioteca National in Buenos Aires—and since I was so shy, I felt I could not cope with asking for a book, so I looked on the shelves for the Encyclopaedia Britannica. I would pick up any chance volume and I would read it. One night I was richly rewarded, because I read all about the Druses, Dryden and the Druids—a treasure trove, no?—all in the same volume, "Dr-." Then I came to the idea of how fine it would be to think of an encyclopedia... a very rigorous one of course, of an imaginary world, where everything should be linked. For example, you would have a language and then a literature, and then a history and so on. Then I thought I would write a story of a fancy encyclopedia. Of course that would require many different people to write it... (shrink)

In a way this is the most fundamental of the senses, being as necessary to animality as the capacity for bodily action. It is of central import for this sense that bodily sensations do not represent bodily or tactile space. The varieties of touch, which range from point‐contact to exploration across space and time of the shape of objects, are characterized. Since we perceive simple object shapes through awareness of the shape of bodily movements, space‐representationalism must be true (...) in simple cases, and while more complex cases differ they are yet constituted out of such representational relations. Then both the shape one seems to perceive, and what one actually perceives and discovers, depend on what one knows and assumes concerning the shape and stability of one's body and the object. This dependence of perceptual inquiry and discovery upon a fund of knowledge is found throughout the senses. It points to the existence of a measure of innate knowledge concerning the environment. The mutual dependence of proprioception and the sense of touch is demonstrated, and disposes of the theory that body‐awareness precedes all other awareness. (shrink)

In this paper, I will provide a phenomenological analysis of somatic obsessions at times present in obsessive–compulsive disorder. I will compare two different types of bodily obsessions, which have a different neurological-physiological underpinning: anguishing awareness of one’s own heartbeat and of one’s own breathing. In addition, I will contrast these two with how one experiences one’s own liver. I will use the concepts "tactility obsessions” and "motility obsessions”, which I have coined for the purpose of this comparison. In other (...) words, these are obsessions concerning the felt sense of one’s autonomous organs and obsessions concerning one’s ability to voluntarily move. Ultimately, I claim that the core lived experience in somatic obsessive–compulsive disorder should not only be understood as having to do with intruding and "distorted thoughts” concerning bodily processes, but could also be understood as having to do with a felt sense of our organs interrupting and intruding our daily lives. (shrink)

As most philosophers recognize, the body’s central role in touch differs from the role it plays in the other sense modalities. Any account of touch must then explain the pivotal nature of the body’s involvement in touch. Unlike most accounts of touch, this paper argues that the body’s centrality in touch is not phenomenological or experiential: the body is not felt in any special way in tactile experiences. Building on Aristotle’s account in De Anima, I argue that the body (...) is central in touch because it is the medium of tactile perception. Touch depends on the body as vision and audition depend on air or any medium that can transmit light or sound waves. I show that it is precisely because the body must be transparent in order to transmit tangible properties that it cannot be perceived or experienced in tactile perception. Although this account conflicts with the widespread view that tactile perception is mediated by bodily sensations, I maintain that it explains how the structure and constitution of the human body contribute directly to what we feel in tactile experiences and that it provides a better understanding of the relation between the sense of touch and our bodily feelings. (shrink)

This experimental paper proposes a shared exploration of the crease as a tactile, existential, and artistic phenomenon. It takes Roland Barthes’ definition of his left-handedness as “a tenuous and persistent crease” as a basis. Hence, this phenomenon is a minor but stubborn mark on the self, a superficial matter. In order to portray an intimate and personal approach to the subject, this paper is written in first person. This “I”, though, is plural, a result of a collaboration. As part (...) of the methodology developed to create this polyphonic voice, the paper is structured in a non-linear fashion. After each section, the reader can choose how to proceed. The imposed choices reveal the materiality of the text - they establish points of friction and awareness for a reader; and weave different discursive lines and surfaces. The aim is to allow the format to contribute to the definition of the crease, beyond images and excerpts in the content. (shrink)

Touch seems to enjoy some epistemic advantage over the other senses when it comes to attest to the reality of external objects. The question is not whether only what appears in tactile experiences is real. It is that only whether appears in tactile experiences feels real to the subject. In this chapter we first clarify how exactly the rather vague idea of an epistemic advantage of touch over the other senses should be interpreted. We then defend a “muscular (...) thesis”, to the effect that only the experience of resistance to our motor efforts, as it arises in effortful touch, presents us with the independent existence of some causally empowered object. We finally consider whether this muscular thesis applies to the perception of our own body. (shrink)