Highlights from the 28th Annual Meeting of the Society for the Neural Control of Movement

Mazurek, Kevin A.; Berger, Michael; Bollu, Tejapratap; Chowdhury, Raeed H.; Elangovan, Naveen; Kuling, Irene A.; Sohn, M. Hongchul

doi:10.1152/jn.00475.2018

Cited by 8 publications

(3 citation statements)

References 54 publications

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“…In this situation, your partner's action would initiate a combined response of your upper limb and hand to stabilize your grasp and secure the device. How the nervous system rapidly uses haptic and proprioceptive feedback to appropriately respond in such complex real-world scenarios is an important question in sensorimotor neuroscience (Mathis et al 2019;Mazurek et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Sensory information from a slipping object elicits a rapid and automatic shoulder response

Hernandez‐Castillo

Maeda

Pruszynski

et al. 2020

Journal of Neurophysiology

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Humans have the remarkable ability to hold, grasp, and manipulate objects. Previous work has reported rapid and coordinated reactions in hand and shoulder muscles in response to external perturbations to the arm during object manipulation; however, little is known about how somatosensory feedback of an object slipping in the hand influences responses of the arm. We built a handheld device to stimulate the sensation of slipping at all five fingertips. The device was integrated into an exoskeleton robot that supported it against gravity. The setup allowed us to decouple somatosensory stimulation in the fingers from forces applied to the arm, two variables that are highly interdependent in real-world scenarios. Fourteen participants performed three experiments in which we measured their arm feedback responses during slip stimulation. Slip stimulations were applied horizontally in one of two directions, and participants were instructed to either follow the slip direction or move the arm in the opposite direction. Participants showed shoulder muscle responses within ∼67 ms of slip onset when following the direction of slip but significantly slower responses when instructed to move in the opposite direction. Shoulder responses were modulated by the speed but not the distance of the slip. Finally, when slip stimulation was combined with mechanical perturbations to the arm, we found that sensory information from the fingertips significantly modulated the shoulder feedback responses. Overall, the results demonstrate the existence of a rapid feedback system that stabilizes handheld objects. NEW & NOTEWORTHY We tested whether the sensation of an object slipping from the fingers modulates shoulder feedback responses. We found rapid shoulder feedback responses when participants were instructed to follow the slip direction with the arm. Shoulder responses following mechanical joint perturbations were also potentiated when combined with slipping. These results demonstrate the existence of fast and automatic feedback responses in the arm in reaction to sensory input to the fingertips that maintain grip on handheld objects.

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Section: Introductionmentioning

confidence: 99%

Sensory information from a slipping object elicits a rapid and automatic shoulder response

Hernandez‐Castillo

Maeda

Pruszynski

et al. 2020

Journal of Neurophysiology

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Sensory information from a slipping object elicits a rapid and automatic shoulder response

Hernandez‐Castillo

Maeda

Pruszynski

et al. 2019

Preprint

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1Humans have the remarkable ability to hold, grasp, and manipulate objects. Previous work has 2 reported rapid and coordinated reactions in hand and shoulder muscles in response to external 3 perturbations to the arm during object manipulation; however, little is known about how 4 somatosensory feedback of an object slipping in the hand influences responses of the arm. We 5 built a hand-held device to stimulate the sensation of slipping at all five fingertips. The device 6 was integrated into an exoskeleton robot that supported it against gravity. The setup allowed us 7 to decouple somatosensory stimulation in the fingers from forces applied to the arm-two 8 variables that are highly interdependent in real-world scenarios. Fourteen participants 9 performed three experiments in which we measured their arm feedback responses during slip 10 stimulation. Slip stimulations were applied horizontally, in one of two directions, and participants 11 were either instructed to follow the slip direction, or to move the arm in the opposite direction. 12Participants showed responses within ~67 ms of slip onset when following the direction of slip, 13 but significantly slower responses when instructed to move in the opposite direction. Arm 14 responses were modulated by the speed but not the distance of the slip. Finally, when slip 15 stimulation was combined with mechanical perturbations to the arm, we found that sensory 16 information from the fingertips significantly modulated the shoulder feedback response. Overall, 17 the results demonstrate the existence of a rapid feedback system that stabilizes hand-held 18 objects. 19 20 21 22 23 24 25 26 3 NEW & NOTHEWORTHY 27 28We tested whether the sensation of an object slipping from the fingers modulates shoulder 29 feedback responses. We found rapid shoulder feedback responses when participants were 30 instructed to follow the slip direction with the arm. Shoulder responses following mechanical 31 joint perturbations were also potentiated when combined with slipping. These results 32 demonstrate the existence of fast and automatic feedback responses in the arm in reaction to 33 sensory input to the fingertips that maintain grip on hand-held objects.

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“…As done in previous years (13,27,29), here we present highlights from the meeting. These highlights revolve around four central themes: 1) neuroplasticity, 2) complex motor skills, 3) multimodal sensory integration, and 4) the role of descending spinal tracts in motor control.…”

Section: Introductionmentioning

confidence: 92%

Highlights from the 30th Annual Meeting of the Society for the Neural Control of Movement

Russo

Ozeri-Engelhard

Hupfeld

et al. 2021

Journal of Neurophysiology

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Highlights from the 28th Annual Meeting of the Society for the Neural Control of Movement

Cited by 8 publications

References 54 publications

Sensory information from a slipping object elicits a rapid and automatic shoulder response

Sensory information from a slipping object elicits a rapid and automatic shoulder response

Sensory information from a slipping object elicits a rapid and automatic shoulder response

Highlights from the 30th Annual Meeting of the Society for the Neural Control of Movement

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