Quantitative Measure of Cutaneous Sensation

Nolan, Michael F.

doi:10.1093/ptj/65.2.181

Cited by 45 publications

(16 citation statements)

References 12 publications

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“…Third, while previously the minimum experienced tactile distance was 2 cm, here it was 4 cm. This change was introduced in order to make sure that tactile distances were clearly suprathreshold at both body locations ( Nolan, 1982 , 1985 ), following the suggestion made by Canzoneri et al (2013a , b ).…”

Section: Discussionmentioning

confidence: 99%

“…They were presented at two different body locations, the participant’s right forearm (test stimuli) and the forehead (reference stimuli; see Canzoneri et al, 2013a , b , for similar procedure). The minimum distance of 4 cm was chosen to be clearly suprathreshold at both body locations ( Nolan, 1982 , 1985 ). Each tactile contact lasted for approximately 1 s.…”

Section: Methodsmentioning

confidence: 99%

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Action sounds update the mental representation of arm dimension: contributions of kinaesthesia and agency

et al. 2015

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Auditory feedback accompanies almost all our actions, but its contribution to body-representation is understudied. Recently it has been shown that the auditory distance of action sounds recalibrates perceived tactile distances on one’s arm, suggesting that action sounds can change the mental representation of arm length. However, the question remains open of what factors play a role in this recalibration. In this study we investigate two of these factors, kinaesthesia, and sense of agency. Across two experiments, we asked participants to tap with their arm on a surface while extending their arm. We manipulated the tapping sounds to originate at double the distance to the tapping locations, as well as their synchrony to the action, which is known to affect feelings of agency over the sounds. Kinaesthetic cues were manipulated by having additional conditions in which participants did not displace their arm but kept tapping either close (Experiment 1) or far (Experiment 2) from their body torso. Results show that both the feelings of agency over the action sounds and kinaesthetic cues signaling arm displacement when displacement of the sound source occurs are necessary to observe changes in perceived tactile distance on the arm. In particular, these cues resulted in the perceived tactile distances on the arm being felt smaller, as compared to distances on a reference location. Moreover, our results provide the first evidence of consciously perceived changes in arm-representation evoked by action sounds and suggest that the observed changes in perceived tactile distance relate to experienced arm elongation. We discuss the observed effects in the context of forward internal models of sensorimotor integration. Our results add to these models by showing that predictions related to action sounds must fit with kinaesthetic cues in order for auditory inputs to change body-representation.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Action sounds update the mental representation of arm dimension: contributions of kinaesthesia and agency

et al. 2015

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“…Every project is a new invention, using the knowledge from previous work, but always solving new challenges in new ways. In Experiment 2 we focused on sensations felt on the hand as this would make differences between conditions more noticeable, given the higher tactile sensitivity of hands as compared to other body parts (Nolan, 1982(Nolan, , 1985. Hence, future work should investigate the transferability of our results and concept from hand to whole body tactile stimulation and to the inner part of clothing, as well as investigating the potential use of electrocutaneous stimulation.…”

Section: Discussionmentioning

confidence: 99%

“…Future versions of this prototype should be really tight and close to the body, potentially having different versions for different body sizes. For Experiment 2, we decided to stimulate the hands, as these would make differences between vibration patterns more noticeable, given their higher sensitivity as compared to other body parts (Nolan, 1982(Nolan, , 1985. Hands are also a relevant body part in relation to clothing-think for instance in gloves-and etextiles are often experienced with the hands.…”

Section: As Shown Inmentioning

confidence: 99%

“…The aspect of different material surfaces influencing its perception has been earlier demonstrated (Hollies, 1989;Bergmann Tiest, 2010;Ramalho et al, 2013). We chose to build Prototype 2 to be touched with the hand, to make differences between conditions more noticeable, since face and hand areas representation in somatosensory cortex are richest manifesting its higher sensitivity as compared to other body parts (Nolan, 1982(Nolan, , 1985, and to address some limitations identified in Experiment 1. Experiment 2 is a controlled user study using Prototype 2 and set to investigate the interaction between the fabric chosen to embed the electronics (i.e., the vibration motors) when designing e-texiles and the vibration patterns themselves.…”

Section: Introductionmentioning

confidence: 99%

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Altering One's Body-Perception Through E-Textiles and Haptic Metaphors

2020

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Technologies change rapidly our perception of reality, moving from augmented to virtual to magical. While e-textiles are a key component in exergame or space suits, the transformative potential of the internal side of garments to create embodied experiences still remains largely unexplored. This paper is the result from an art-science collaborative project that combines recent neuroscience findings, body-centered design principles and 2D vibrotactile array-based fabrics to alter one's body perception. We describe an iterative design process intertwined with two user studies on the effects on bodyperceptions and emotional responses of various vibration patterns within textile that were designed as spatial haptic metaphors. Our results show potential in considering materials (e.g., rocks) as sensations to design for body perceptions (e.g., being heavy, strong) and emotional responses. We discuss these results in terms of sensory effects on body perception and synergetic impact to research on embodiment in virtual environments, human-computer interaction, and e-textile design. The work brings a new perspective to the sensorial design of embodied experiences which is based on "material perception" and haptic metaphors, and highlights potential opportunities opened by haptic clothing to change body-perception.

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Sensorimotor Assessment

Hammond¹,

Grafton²

2011

Encyclopedia of Clinical Neuropsychology

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Quantitative Measure of Cutaneous Sensation

Cited by 45 publications

References 12 publications

Action sounds update the mental representation of arm dimension: contributions of kinaesthesia and agency

Action sounds update the mental representation of arm dimension: contributions of kinaesthesia and agency

Altering One's Body-Perception Through E-Textiles and Haptic Metaphors

Sensorimotor Assessment

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