Publications de Martina Coscia

Effects of Hemispheric Stroke Localization on the Reorganization of Arm Movements within Different Mechanical Environments

This study investigated how stroke's hemispheric localization affects motor performance, spinal maps and muscle synergies while performing planar reaching with and without assistive or resistive forces. A lesion of the right hemisphere affected performance ...

MDPI2021

Stroke impairs the control of isometric forces and muscle activations in the ipsilesional arm

Martina Coscia

Stroke often impairs the control of the contralesional arm, thus most survivors rely on the ipsilesional arm to perform daily living activities that require an efficient control of movements and forces. Whereas the ipsilesional arm is often called 'unaffec ...

Nature Portfolio2021

A multimodal approach to capture post-stroke temporal dynamics of recovery

Dimitri Nestor Alice Van De Ville, Jenifer Cléa Miehlbradt, Nawal Noëlle Kinany, Elvira Pirondini, Silvestro Micera, Martina Coscia, Christian Giang, Camilla Pierella

Objective.Several training programs have been developed in the past to restore motor functions after stroke. Their efficacy strongly relies on the possibility to assess individual levels of impairment and recovery rate. However, commonly used clinical scal ...

2020

Motor improvement estimation and task adaptation for personalized robot-aided therapy: a feasibility study

Jenifer Cléa Miehlbradt, Nawal Noëlle Kinany, Elvira Pirondini, Silvestro Micera, Martina Coscia, Christian Giang, Camilla Pierella

Background In the past years, robotic systems have become increasingly popular in upper limb rehabilitation. Nevertheless, clinical studies have so far not been able to confirm superior efficacy of robotic therapy over conventional methods. The personaliza ...

2020

Muscle activities in similar arms performing identical tasks reveal the neural basis of muscle synergies

Martina Coscia

Are the muscle synergies extracted from multiple electromyographic signals an expression of neural information processing, or rather a by-product of mechanical and task constraints? To address this question, we asked 41 right-handed adults to perform a var ...

SPRINGER2020

Neurotechnology-aided interventions for upper limb motor rehabilitation in severe chronic stroke

José del Rocio Millán Ruiz, Silvestro Micera, Martina Coscia, John Donoghue, Friedhelm Christoph Hummel, Maximilian Jonas Wessel

Upper limb motor deficits in severe stroke survivors often remain unresolved over extended time periods. Novel neurotechnologies have the potential to significantly support upper limb motor restoration in severely impaired stroke individuals. Here, we revi ...

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

Evaluating upper limb impairments in multiple sclerosis by exposure to different mechanical environments

Martina Coscia

Multiple sclerosis is a chronic, autoimmune and neurodegenerative disease affecting multiple functional systems and resulting in motor impairments associated with muscle weakness and lack of movement coordination. We quantified upper limb motor deficits wi ...

Nature Research2018

How are Muscle Synergies Affected by Electromyography Pre-Processing?

Elvira Pirondini, Silvestro Micera, Martina Coscia, Fiorenzo Artoni

2018

Motor Intention Decoding During Active and Robot-Assisted Reaching

Elvira Pirondini, Silvestro Micera, Martina Coscia, Fiorenzo Artoni, Camilla Pierella, Aldo Pastore

2018

Data-driven body–machine interface for the accurate control of drones

Dario Floreano, Jenifer Cléa Miehlbradt, Alexandre Thierry Cherpillod, Silvestro Micera, Martina Coscia, Stefano Mintchev, Fiorenzo Artoni

The teleoperation of nonhumanoid robots is often a demanding task, as most current control interfaces rely on mappings between the operator’s and the robot’s actions, which are determined by the design and characteristics of the interface, and may therefor ...

2018

EEG topographies provide subject-specific correlates of motor control

José del Rocio Millán Ruiz, Dimitri Nestor Alice Van De Ville, Elvira Pirondini, Silvestro Micera, Martina Coscia, Jesús Minguillón Campos

Electroencephalography (EEG) of brain activity can be represented in terms of dynamically changing topographies (microstates). Notably, spontaneous brain activity recorded at rest can be characterized by four distinctive topographies. Despite their well-es ...

Nature Research2017

EMG-based decoding of grasp gestures in reaching-to-grasping motions

Aude Billard, Elvira Pirondini, Sahar El Khoury, Silvestro Micera, Martina Coscia, Iason Batzianoulis

Predicting the grasping function during reach-to-grasp motions is essential for controlling a prosthetic hand or a robotic assistive device. An early accurate prediction increases the usability and the comfort of a prosthetic device. This work proposes an ...

Elsevier2017

A Spectral Method for Generating Surrogate Graph Signals

Dimitri Nestor Alice Van De Ville, Elvira Pirondini, Anna Vybornova, Martina Coscia

The increasing availability of network data is leading to a growing interest in processing of signals on graphs. One notable tool for extending conventional signal-processing operations to networks is the graph Fourier transform that can be obtained as the ...

IEEE Institute of Electrical and Electronics Engineers2016

Kinematic and muscles activation patterns of the upper limbs in subjects with Multiple Sclerosis during planar movement and isometric force tasks

Michael Müller, Martina Coscia

Sage Publications Ltd2016

Evaluation of the effects of the Arm Light Exoskeleton on movement execution and muscle activities: a pilot study on healthy subjects

Massimo Bergamasco, Elvira Pirondini, Silvestro Micera, Martina Coscia

Background: Exoskeletons for lower and upper extremities have been introduced in neurorehabilitation because they can guide the patient's limb following its anatomy, covering many degrees of freedom and most of its natural workspace, and allowing the contr ...

BioMed Central2016

Muscle synergies and spinal maps are sensitive to the asymmetry induced by a unilateral stroke

Silvestro Micera, Martina Coscia

Background: Previous studies have shown that a cerebrovascular accident disrupts the coordinated control of leg muscles during locomotion inducing asymmetric gait patterns. However, the ability of muscle synergies and spinal maps to reflect the redistribut ...

BioMed Central2015

The effect of arm weight support on upper limb muscle synergies during reaching movements

Silvestro Micera, Martina Coscia

Background: Compensating for the effect of gravity by providing arm-weight support (WS) is a technique often utilized in the rehabilitation of patients with neurological conditions such as stroke to facilitate the performance of arm movements during therap ...

BioMed Central2014

Modular organization of reaching and grasping movements investigated using EEG microstates

Dimitri Nestor Alice Van De Ville, Robert Leeb, Elvira Pirondini, Silvestro Micera, Martina Coscia, Jesús Minguillón Campos

How movements are generated and controlled by the central nervous system (CNS) is still not well understood. In this work, we tested the hypothesis of a modular organization of the brain activity during the execution of voluntary movements. In particular, ...

IEEE2014

How the selection of muscles influences their synergies? A preliminary study using real data

Matteo Mancuso, Elvira Pirondini, Silvestro Micera, Andrea Crema, Martina Coscia

Muscle synergies have been proposed as building blocks that simplify the construction of movements, and as a method to study motor behavior. However, the pre-processing of the EMG signals and the factorization algorithm may impact on their extraction and m ...

Ieee2013