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Silvestro Micera

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Publications associées (314)

Myoelectric activity imaging and decoding with multichannel surface EMG for enhanced everyday life applicability

Silvestro Micera, Fiorenzo Artoni, Stefan Erich Hans-Jürgen Kreipe

Surface electromyography (sEMG) allows to evaluate neurophysiological aspects of movements. The traditional muscle-specific sEMG approach requires considerable expertise to correctly position bipolar derivations over each muscle of interest. This reduces t ...

IEEE2019

Effects of repeated waist-pull perturbations on gait stability in subjects with cerebellar ataxia

Silvestro Micera

Background: Damage to the cerebellum can affect neural structures involved in locomotion, causing gait and balance disorders. However, the integrity of cerebellum does not seem to be critical in managing sudden and unexpected environmental changes such as ...

BioMed Central2019

Effectiveness of a Robot-Mediated Strategy While Counteracting Multidirectional Slippages

Silvestro Micera

This study investigates the effectiveness of a robot-mediated strategy aimed at promoting balance recovery after multidirectional slippages. Six older adults were asked to manage anteroposterior and mediolateral slippages while donning an active pelvis ort ...

Cambridge University Press (CUP)2019

Teleoperation with a wearable sensor system

Dario Floreano, David Atienza Alonso, Jenifer Cléa Miehlbradt, Alexandre Thierry Cherpillod, Fabio Isidoro Tiberio Dell'Agnola, Silvestro Micera, Martina Coscia, Stefano Mintchev, Fiorenzo Artoni

A method for remotely controlling an operated unmanned object, comprises defining of a set of control movements of an operator; selecting of minimal necessary signals to reliably acquire the operator's control movements; defining of a mapping of the contro ...

2019

Functional imaging of rostrocaudal spinal activity during upper limb motor tasks

Dimitri Nestor Alice Van De Ville, Roberto Martuzzi, Nawal Noëlle Kinany, Elvira Pirondini, Silvestro Micera

The spinal cord is the main interface between the brain and the periphery. It notably plays a central role in motor control, as spinal motoneurons activate skeletal muscles involved in voluntary movements. Yet, the spinal mechanisms underlying human moveme ...

ACADEMIC PRESS INC ELSEVIER SCIENCE2019

Soft Hydrogel Zwitterionic Coatings Minimize Fibroblast and Macrophage Adhesion on Polyimide Substrates

Silvestro Micera, Anna Zahoranova, igor lacik

Minimizing the foreign body reaction to polyimide-based implanted devices plays a pivotal role in several biomedical applications. In this work, we propose materials exhibiting nonbiofouling properties and a Young's modulus reflecting that of soft human ti ...

AMER CHEMICAL SOC2019

P300 in the park: feasibility of online data acquisition and integration in a Mobile Brain/Body Imaging setting

Silvestro Micera, Fiorenzo Artoni, Elena Galeasso

In the last years Mobile Brain/Body Imaging (MoBI) has been increasingly used to study cognition in the real world to give more ecological validity to brain imaging studies currently carried out only inside the lab. To increase portability of the setup and ...

IEEE2019

Pre-impact detection algorithm to identify lack of balance due to tripping-like perturbations

Silvestro Micera

This study investigates the performance of an updated version of our pre-impact detection algorithm while parsing out hip kinematics in order to identify unexpected tripping-like perturbations during walking. This approach grounds on the hypothesis that du ...

IEEE2019

Six-Month Assessment of a Hand Prosthesis with Intraneural Tactile Feedback

Edoardo D'Anna, Silvestro Micera, Stanisa Raspopovic, Francesco Maria Petrini, Ivo Strauss, Giacomo Valle

Objective Hand amputation is a highly disabling event, which significantly affects quality of life. An effective hand replacement can be achieved if the user, in addition to motor functions, is provided with the sensations that are naturally perceived whil ...

2019

Cortical reactive balance responses to unexpected slippages while walking: a pilot study

Daniela De Venuto, Silvestro Micera

Understanding how the human brain cortex behaves when the dynamical balance is unexpectedly challenged can be useful to enable fall prevention strategies during daily activities. In this respect, we designed and tested a novel methodological approach to ea ...

IEEE2019

An Event-Driven Closed-Loop System for Real-Time FES Control

Silvestro Micera, Andrea Crema, Danilo Demarchi

Active functional rehabilitation procedures, exoskeleton application and prosthesis employment are essential tools for the society life reinstatement of subjects affected by neuromuscular disorders or victims of serious physical accident. In this paper we ...

IEEE2019

Evaluation of time-frequency features as detectors of lack of balance due to tripping-like perturbations

Silvestro Micera

Unbalancing events during gait can end up in falls and, thus, injury. Detecting events that could bring to fall and consequently activating fall prevention systems before the impact may help to mitigate related injuries. However, there is uncertainty about ...

IEEE2019

System for personalized robotic therapy and related methods

Nawal Noëlle Kinany, Elvira Pirondini, Silvestro Micera, Christian Giang, Camilla Pierella

The present invention provides an apparatus and a method able to estimate motor improvement in real-time during three-dimensional rehabilitation tasks and to consequently dynamically personalize the therapy.The method can be carried out by a computer progr ...

2019

Wide-field imaging of cortical neuronal activity with red-shifted functional indicators during motor task execution

Silvestro Micera, Francesco Saverio Pavone, Maria Pasquini

Genetically encoded calcium indicators (GECIs) can be used to monitor the intracellular concentration of free calcium in populations of neurons. GECIs with long emission wavelengths are particularly attractive for deep tissue microscopy in vivo, and have t ...

2019

Sensory feedback restoration in leg amputees improves walking speed, metabolic cost and phantom pain

Silvestro Micera, Stanisa Raspopovic, Francesco Maria Petrini, Giacomo Valle, Federica Barberi, Dario Bortolotti

Conventional leg prostheses do not convey sensory information about motion or interaction with the ground to aboveknee amputees, thereby reducing confidence and walking speed in the users that is associated with high mental and physical fatigue(1-4). The l ...

2019

Understanding ultrasound neuromodulation using a computationally efficient and interpretable model of intramembrane cavitation

Théo Lemaire, Silvestro Micera, Esra Neufeld

Objective. Low-intensity focused ultrasound stimulation (LIFUS) emerges as an attracting technology for noninvasive modulation of neural circuits, yet the underlying action mechanisms remain unclear. The neuronal intramembrane cavitation excitation (NICE) ...

2019

Enhancing functional abilities and cognitive integration of the lower limb prosthesis

Silvestro Micera, Stanisa Raspopovic, Francesco Maria Petrini, Giacomo Valle, Federica Barberi, Dario Bortolotti

Lower limb amputation (LLA) destroys the sensory communication between the brain and the external world during standing and walking. Current prostheses do not restore sensory feedback to amputees, who, relying on very limited haptic information from the st ...

2019

External sensory-motor cues while managing unexpected slippages can violate the planar covariation law

Silvestro Micera

This study was aimed at investigating the intersegmental coordination of six older adults while managing unexpected slippages delivered during steady walking, and wearing an Active Pelvis Orthosis (APO). The APO was setup either to assist volunteers at the ...

2019

Characterization of multi-channel intraneural stimulation in transradial amputees

Pablo Garcia del Valle, Edoardo D'Anna, Silvestro Micera, Stanisa Raspopovic, Francesco Maria Petrini, Ivo Strauss, Giacomo Valle, Fiorenzo Artoni

Although peripheral nerve stimulation using intraneural electrodes has been shown to be an effective and reliable solution to restore sensory feedback after hand loss, there have been no reports on the characterization of multi-channel stimulation. A deepe ...

Springer Nature2019

Optimal integration of intraneural somatosensory feedback with visual information: a single-case study

Silvestro Micera, Ivo Strauss, Giacomo Valle, Francesco Iberite

Providing somatosensory feedback to amputees is a long-standing objective in prosthesis research. Recently, implantable neural interfaces have yielded promising results in this direction. There is now considerable evidence that the nervous system integrate ...

Nature Research2019

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