Action sounds recalibrate perceived tactile distance

Tajadura‐Jiménez, Ana; Väljamäe, Aleksander; Toshima, Iwaki; Kimura, Tooru; Tsakiris, Manos; Kitagawa, Norimichi

doi:10.1016/j.cub.2012.04.028

Cited by 125 publications

(159 citation statements)

References 10 publications

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“…Touch, however, can clearly also be used to perceive the extrinsic physical properties of objects. Longo, Azañón, and Haggard (2010) argued that perceiving the metric properties of objects touching the skin requires that immediate sensory signals be combined with (Berryman, Yau, & Hsiao, 2006), sounds produced by action (Tajadura-Jiménez et al, 2012, 2015, the rubber hand illusion (Bruno & Bertamini, 2010), and tool use (Canzoneri et al, 2013;Miller, Longo, & Saygin, 2014, 2017. Thus, in analogy with the modulation of perceived passability of apertures when apparent eyeheight was altered shown by Warren and Whang (1987), these results show that experimental manipulations of represented body size alter perceived tactile distance.…”

Section: Statement Of Public Significancementioning

confidence: 91%

Mapping the internal geometry of tactile space.

Longo¹,

Голубова²

2017

Journal of Experimental Psychology: Human Perception and Perfor

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A large body of research has shown spatial distortions in the perception of tactile distances on the skin. For example, perceived tactile distance is increased on sensitive compared to less sensitive skin regions, and larger for stimuli oriented along the medio-lateral axis than the proximo-distal axis of the limbs. In this study we aimed to investigate the spatial coherence of these distortions by reconstructing the internal geometry of tactile space using multidimensional scaling (MDS). Participants made verbal estimates of the perceived distance between 2 touches applied sequentially to locations on their left hand. In Experiment 1 we constructed perceptual maps of the dorsum of the left hand, which showed a good fit to the actual configuration of stimulus locations. Critically, these maps also showed clear evidence of spatial distortion, being stretched along the medio-lateral hand axis. Experiment 2 replicated this result and showed that no such distortion is apparent on the palmar surface of the hand. These results show that distortions in perceived tactile distance can be characterized by geometrically simple and coherent deformations of tactile space. We suggest that the internal geometry of tactile space is shaped by the geometry of receptive fields in somatosensory cortex.

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Section: Statement Of Public Significancementioning

confidence: 91%

Mapping the internal geometry of tactile space.

Longo¹,

Голубова²

2017

Journal of Experimental Psychology: Human Perception and Perfor

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“…For instance, the sound of tapping with an object on one's hand provides information about hand position, arm length (Tajadura-Jiménez et al, 2012), and force applied (Tajadura-Jiménez, Furfaro, BianchiBerthouze, & Bevilacqua, in press), or the timing of steps when walking (Menzer et al, 2010). Using this information, the individual can adjust movements.…”

Section: Sonification For Representing Understanding and Motivatingmentioning

confidence: 99%

Go-with-the-Flow: Tracking, Analysis and Sonification of Movement and Breathing to Build Confidence in Activity Despite Chronic Pain

Singh

Piana

Pollarolo

et al. 2015

Human–Computer Interaction

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105

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Chronic (persistent) pain (CP) affects 1 in 10 adults; clinical resources are insufficient, and anxiety about activity restricts lives. Technological aids monitor activity but lack necessary psychological support. This article proposes a new sonification framework, Go-with-the-Flow, informed by physiotherapists and people with CP. The framework proposes articulation of user-defined sonified exercise spaces (SESs) tailored to psychological needs and physical capabilities that enhance body and movement awareness to rebuild confidence in physical activity. A smartphone-based wearable device and a Kinect-based device were designed based on the framework to track movement and breathing and sonify them during physical activity. In control studies conducted to evaluate the sonification strategies, people with CP reported increased performance, motivation, awareness of movement, and relaxation with sound feedback. Home studies, a focus group, and a survey of CP patients conducted at the end of a hospital pain management session provided an in-depth understanding of how different aspects of the SESs and their calibration can facilitate self-directed rehabilitation and how the wearable version of the device can facilitate transfer of gains from exercise to feared or demanding activities in real life. We conclude by discussing the implications of our findings on the design of technology for physical rehabilitation

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“…Differences in tactile distance perception are often attributed to cortical magnification factors in primary somatosensory cortex (SI) (Cholewiak, 1999;Green, 1982). However, several recent studies have found that tactile distance perception is modulated by altered multisensory input (Miller, Longo, & Saygin, 2014;Tajadura-Jiménez et al, 2012;Taylor-Clarke et al, 2004). Further, quantifications of the magnitude of Weber's illusion (Taylor-Clarke et al, 2004) found it to only be about 10% of what would be expected from cortical magnification factors in SI (Penfield & Boldrey, 1937).…”

Section: Introductionmentioning

confidence: 99%

“…In one popular version of a tactile distance judgment task (TDJ), participants compare the perceived distance of two temporally distinct presentations of touch. Touch is typically administered to two distinct body parts, in order to quantify differences in the represented size of body parts (de Vignemont, Ehrsson, & Haggard, 2005;Tajadura-Jiménez et al, 2012;Taylor-Clarke et al, 2004). It is inferred that the body part with the greatest perceived tactile distance is represented as larger than the other.…”

Section: Introductionmentioning

confidence: 99%

Mental body representations retain homuncular shape distortions: Evidence from Weber’s illusion

Miller

Longo

Saygın

2016

Consciousness and Cognition

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2 Highlights We compared the shape of body part representations underlying Weber's illusion. We found that the represented shape of both the arm and hand was highly distorted. The shape of the arm representation was more distorted than the hand. Mental body representations retain shape distortions characterizing the somatosensory homunculus. 3 AbstractMental body representations underlying tactile perception do not accurately reflect the body's true morphology. For example, perceived tactile distance is dependent on both the body part being touched and the stimulus orientation, a phenomenon called Weber's illusion. These findings suggest the presence of size and shape distortions, respectively. However, whereas each morphological feature is typically measured in isolation, a complete morphological characterization requires the concurrent measurement of both size and shape. We did so in three experiments, manipulating both the stimulated body parts (hand; forearm) and stimulus orientation while requiring participants to make tactile distance judgments. We found that the forearm was significantly more distorted than the hand lengthwise but not widthwise. Effects of stimulus orientation are thought to reflect receptive field anisotropies in primary somatosensory cortex. The results of the present study therefore suggest that mental body representations retain homuncular shape distortions that characterize early stages of somatosensory processing.

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Action sounds recalibrate perceived tactile distance

Cited by 125 publications

References 10 publications

Mapping the internal geometry of tactile space.

Mapping the internal geometry of tactile space.

Go-with-the-Flow: Tracking, Analysis and Sonification of Movement and Breathing to Build Confidence in Activity Despite Chronic Pain

Mental body representations retain homuncular shape distortions: Evidence from Weber’s illusion

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