Interactions Between Tactile and Proprioceptive Representations in Haptics

Rincon-Gonzalez, Liliana; Naufel, Stephanie; Santos, Veronica J.; Tillery, Stephen Helms

doi:10.1080/00222895.2012.746281

Cited by 11 publications

(8 citation statements)

References 54 publications

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“…Conversely, a finger-position matching task has been reported to be affected by nerve block and cutaneous anesthesia [ 9 ], indicating that cutaneous afferents may provide a crude position sense for the fingers. Moreover, it has been shown that the localization of a proprioceptive target (i.e., the fingertip) was improved when participants contacted a surface with their target fingertip, which provides them with tactile feedback [ 10 – 12 ]. Similarly, accuracy in pointing movements was enhanced when endpoint contact occurred with the effector fingertip [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…In contrast, digital anesthesia resulted in impaired fingertip localization [ 11 ] as well as decreased movement accuracy during typing [ 14 ]. This relationship between touch and proprioception is likely to be explained by the convergence of proprioceptive and tactile signals at the cortical level; electrophysiological recordings in monkey have shown that neurons in the hand representation of the primary somatosensory cortex code both tactile and proprioceptive modalities during a reach-to-grasp task [ 12 , 15 ]. It has also been established that neurons in the somatosensory cortex have both cutaneous and proprioceptive receptive fields [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

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Vibrotactile information improves proprioceptive reaching target localization

et al. 2018

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When pointing to parts of our own body (e.g., the opposite index finger), the position of the target is derived from proprioceptive signals. Consistent with the principles of multisensory integration, it has been found that participants better matched the position of their index finger when they also had visual cues about its location. Unlike vision, touch may not provide additional information about finger position in space, since fingertip tactile information theoretically remains the same irrespective of the postural configuration of the upper limb. However, since tactile and proprioceptive information are ultimately coded within the same population of posterior parietal neurons within high-level spatial representations, we nevertheless hypothesized that additional tactile information could benefit the processing of proprioceptive signals. To investigate the influence of tactile information on proprioceptive localization, we asked 19 participants to reach with the right hand towards the opposite unseen index finger (proprioceptive target). Vibrotactile stimuli were applied to the target index finger prior to movement execution. We found that participants made smaller errors and more consistent reaches following tactile stimulation. These results demonstrate that transient touch provided at the proprioceptive target improves subsequent reaching precision and accuracy. Such improvement was not observed when tactile stimulation was delivered to a distinct body part (the shoulder). This suggests a specific spatial integration of touch and proprioception at the level of high-level cortical body representations, resulting in touch improving position sense.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Vibrotactile information improves proprioceptive reaching target localization

et al. 2018

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“…This may be because the feel of the drill‐based manipulandum is more familiar. There is also evidence that the tactile and proprioceptive systems may provide complementary information so it is possible that drill vibration may improve participants' ability to navigate within the 3D operative field …”

Section: Discussionmentioning

confidence: 99%

Elements of virtual temporal bone surgery: Manipulandum format may be more important to surgeons than haptic device force capabilities

Unger

Sepehri

Rampersad

et al. 2017

Laryngoscope Investig Oto

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BackgroundTemporal bone simulations are critiqued for poor drill‐bone interaction. This project appraises the import of increasing haptic device and manipulandum fidelity on the perceived realism of drilling a virtual temporal bone.Virtual surgical contact forces rely on haptic device fidelity and are transmitted through a manipulandum. With identical software, both device hardware and manipulandum may each contribute to realism. We compare the three degrees of freedom (DOF), 3N Geomagic Touch (3D Systems, SC) to a 6DOF, 5.5N HD2 (Quanser, ON) with the both standard (“HD2–Standard”) and in‐house customized otic drill manipulandum (“HD2–Modified”).MethodsSix otologic surgeons performed three virtual mastoidectomy surgeries on a temporal bone surgical simulator. The HD2 manipulandum was modified for attached otic drill with gravity compensation and requisite mechanical modifications. Surgeons, in random order, performed the dissection with the different hardware platforms.ResultsTwo‐tailed t‐tests demonstrate that for the acoustic properties of each simulation, the HD2–Modified manipulandum was favored (p ≤ 0.0004). For overall similarity of bone, both HD2–Standard (p ≤ 0.05) HD2–Modified (p ≤ 0.03)) were favored over the Geomagic; however they were not appreciably different when directly compared to each other. There was no preference for increasing haptic device fidelity in virtual drill bone interaction.In forced rank, users favored the HD2–Modified in osseus, vibrational and overall realism, as well as being preferred for education and preoperative rehearsal (p ≤ 0.0164).ConclusionIncreasing manipulandum realism was favored. However surprisingly, there was no preference for increased device fidelity, illustrating incremental stiffness had nominal impact. There may be a ceiling to drill bone interaction in virtual haptic simulation.Level of Evidence2b.

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“…Prior work suggests that tactile and proprioceptive inputs are encoded simultaneously in unimpaired individuals (Rincon-Gonzalez et al, 2012 ). For instance, non-weight bearing contact of the fingertip against a surface can improve the accuracy of perceived posture.…”

Section: Introductionmentioning

confidence: 99%

“…Intracortical microstimulation has been used in brain–machine interfaces for the provision of tactile and proprioceptive feedback (Velliste et al, 2008 ; Rincon-Gonzalez et al, 2012 ). In non-human primate studies, electrical stimulation in somatosensory cortex has been used to convey limb movement, although the provision of absolute limb position remains a challenge, irrespective of the neural interface method being used (London et al, 2008 ).…”

Section: Introductionmentioning

confidence: 99%

A Robot Hand Testbed Designed for Enhancing Embodiment and Functional Neurorehabilitation of Body Schema in Subjects with Upper Limb Impairment or Loss

Hellman

Chang

Tanner

et al. 2015

Front. Hum. Neurosci.

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Many upper limb amputees experience an incessant, post-amputation “phantom limb pain” and report that their missing limbs feel paralyzed in an uncomfortable posture. One hypothesis is that efferent commands no longer generate expected afferent signals, such as proprioceptive feedback from changes in limb configuration, and that the mismatch of motor commands and visual feedback is interpreted as pain. Non-invasive therapeutic techniques for treating phantom limb pain, such as mirror visual feedback (MVF), rely on visualizations of postural changes. Advances in neural interfaces for artificial sensory feedback now make it possible to combine MVF with a high-tech “rubber hand” illusion, in which subjects develop a sense of embodiment with a fake hand when subjected to congruent visual and somatosensory feedback. We discuss clinical benefits that could arise from the confluence of known concepts such as MVF and the rubber hand illusion, and new technologies such as neural interfaces for sensory feedback and highly sensorized robot hand testbeds, such as the “BairClaw” presented here. Our multi-articulating, anthropomorphic robot testbed can be used to study proprioceptive and tactile sensory stimuli during physical finger–object interactions. Conceived for artificial grasp, manipulation, and haptic exploration, the BairClaw could also be used for future studies on the neurorehabilitation of somatosensory disorders due to upper limb impairment or loss. A remote actuation system enables the modular control of tendon-driven hands. The artificial proprioception system enables direct measurement of joint angles and tendon tensions while temperature, vibration, and skin deformation are provided by a multimodal tactile sensor. The provision of multimodal sensory feedback that is spatiotemporally consistent with commanded actions could lead to benefits such as reduced phantom limb pain, and increased prosthesis use due to improved functionality and reduced cognitive burden.

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Interactions Between Tactile and Proprioceptive Representations in Haptics

Cited by 11 publications

References 54 publications

Vibrotactile information improves proprioceptive reaching target localization

Vibrotactile information improves proprioceptive reaching target localization

Elements of virtual temporal bone surgery: Manipulandum format may be more important to surgeons than haptic device force capabilities

A Robot Hand Testbed Designed for Enhancing Embodiment and Functional Neurorehabilitation of Body Schema in Subjects with Upper Limb Impairment or Loss

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