Furthermore, we discuss the main strategies employed so far in the research studies that tried to restore slippage control in amputees. In this work, we reviewed the literature on physiological correlates of slippage to propose a three-phases model for the slip sensation and reaction. Indeed, slippage control involves parallel and compensatory activation of multiple mechanoceptors, spinal and supraspinal reflexes, and higher-order voluntary behavioral adjustments. However, in hand prosthetics, the performance of even the most innovative research solutions proposed so far to control slippage remain distant from the human physiology. Slippage control is an enabling achievement to all manipulation abilities.
By modulating the grip force in function of the quick and not completely predictable change of the load force, grabbed objects are prevented to slip from the hand. Di Pino 1ġResearch Unit of Neurophysiology and Neuroengineering of Human-Technology Interaction (NeXTlab), Università Campus Bio-Medico di Roma, Rome, ItalyĢThe BioRobotics Institute, Scuola Superiore Sant’Anna, Pisa, ItalyģDepartment of Excellence in Robotics & A.I., Scuola Superiore Sant’Anna, Pisa, ItalyĪbstract: Sensory feedback is pivotal for a proficient dexterity of the hand. WN is thus a relevant modulator of corticospinal function its neurobiological effects should not be neglected and could in fact be exploited in research applications.Īuthors: A. The enduring excitability modulation combined with the effects on behaviour suggest that WN might induce neural plasticity. Two independent behavioural experiments highlighted that WN improved multimodal sensorimotor performance. WN enhanced M1 corticospinal excitability, not just during exposure, but also during silence periods intermingled with WN, and up to several minutes after the end of exposure. M1 excitability (spTMS, SICI, ICF, I/O curve) and sensorimotor reaction-time performance were quantified before, during and after WN stimulation in a set of experiments performed in a cohort of 61 healthy subjects. Here we tested the hypothesis, if WN induces M1 excitability changes and improves sensorimotor performance. However, to date there is no research on the influence of WN on corticospinal excitability and potentially associated sensorimotor integration itself. Scientific Reports volume 12, Article number: 13108 (2022) AbstractĪuditory white noise (WN) is widely used in neuroscience to mask unwanted environmental noise and cues, e.g., TMS clicks. Author: Giovanni Pellegrino, Mattia Pinardi, Anna-Lisa Schuler, Eliane Kobayashi, Stefano Masiero, Gino Marioni, Vincenzo di Lazzaro, Flavio Keller, Giorgio Arcara, Francesco Piccione & Giovanni Di Pino
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