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Jocelyne Bloch

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Publications associées (56)

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System for selective spatiotemporal stimulation of the spinal cord

Silvestro Micera, Grégoire Courtine, Nikolaus Wenger, Marco Capogrosso, Jocelyne Bloch

The present disclosure refers to systems for electrical neurostimulation of a spinal cord of a subject in need of nervous system function support. In one example, a system comprises a signal processing device configured to receive signals from the subject ...

2017

Cerebral extracellular lactate increase is predominantly nonischemic in patients with severe traumatic brain injury

Pierre Magistretti, Reto Meuli, Jocelyne Bloch

Growing evidence suggests that endogenous lactate is an important substrate for neurons. This study aimed to examine cerebral lactate metabolism and its relationship with brain perfusion in patients with severe traumatic brain injury (TBI). A prospective c ...

Nature Publishing Group2013

Soft, Implantable Bioelectronic Interfaces for Translational Research

Sébastien Jiguet, Giuseppe Schiavone, Nicolas Vachicouras, Florian Dylan Fallegger, Stéphanie Lacour, Grégoire Courtine, Marco Capogrosso, Evgenia Vladimirova Roussinova, Ivan Furfaro, Andreas Rowald, Simon Borgognon, Jocelyne Bloch, Xiaoyang Kang, Ismael Seanez Gonzalez

The convergence of materials science, electronics, and biology, namely bioelectronic interfaces, leads novel and precise communication with biological tissue, particularly with the nervous system. However, the translation of lab‐based innovation toward cli ...

Wiley2020

Automatic clustering of spinal reflexes evoked by epidural electrical stimulation of the cervical spinal cord in non-human primates

Giuseppe Schiavone, Stéphanie Lacour, Grégoire Courtine, Marco Capogrosso, Katie Zhi Zhuang, Jocelyne Bloch

Epidural electrical stimulation of the spinal cord elicits motor responses by recruiting large sensory afferents in the posterior roots. Divergence of excitatory inputs provided by these fibers generates a variety of shapes, latencies and amplitudes in the ...

2019

A Computational Framework for the Design of Spinal Neuroprostheses

Silvestro Micera, Grégoire Courtine, Marco Capogrosso, Jocelyne Bloch

Severe Spinal Cord Injury (SCI) alters the communication between supra-spinal centers and the sensorimotor networks coordinating limb movements, which are usually located below the injury. Epidural electrical stimulation of lumbar segments has shown the ab ...

Springer International Publishing Ag2017

A clinical road map for single-cell omics

Grégoire Courtine, Jocelyne Bloch

In a matter of years, single-cell omics has matured from a pioneering technique employed by just a handful of specialized laboratories to become a ubiquitous feature of biological research and a key driver of scientific discovery. The widespread adoption a ...

2025

Targeted dorsal root entry zone stimulation alleviates pain due to meralgia paresthetica

Léonie Asboth, Grégoire Courtine, Nicolas Hankov, Robin Jonathan Demesmaeker, Jocelyne Bloch, Jimmy James Ravier, Viviana Aureli

Objective. Meralgia paresthetica (MP) is a mononeuropathy of the exclusively sensory lateral femoral cutaneous nerve (LFCN) that is difficult to treat with conservative treatments. Afferents from the LFCN enter the spinal cord through the dorsal root entry ...

IOP Publishing Ltd2022

Long-term functionality of a soft electrode array for epidural spinal cord stimulation in a minipig model

Giuseppe Schiavone, Nicolas Vachicouras, Florian Dylan Fallegger, Stéphanie Lacour, Grégoire Courtine, Marco Capogrosso, Fabien Bertrand Paul Wagner, Jocelyne Bloch, Xiaoyang Kang

Long-term biointegration of man-made neural interfaces is influenced by the mechanical properties of the implant materials. Substantial experimental work currently aims at replacing conventional hard implant materials with soft alternatives that can favour ...

IEEE2018

Regional specialization of movement encoding across the primate sensorimotor cortex

Tomislav Milekovic, Grégoire Courtine, Simon Borgognon, Jocelyne Bloch, Ismael Seanez Gonzalez, Rafael Emmanuel Ornelas Kobayashi, Christopher Marc Hitz, Nicolò Macellari

The process by which the cerebral cortex generates movements to achieve different tasks remains poorly understood. Here, we leveraged the rich repertoire of well-controlled primate locomotor behaviors to study how task-specific movements are encoded across ...

Springer Science and Business Media LLC2025

Defining Ecological Strategies in Neuroprosthetics

Grégoire Courtine, Jocelyne Bloch

Neurological disorders disrupt the equilibrium within the brain and spinal cord ecosystems. Ecology reuses, recycles, and reduces to help maintain the balance across ecosystems. Likewise, neuroprosthetics can help the brain help itself with ecoprosthetic d ...

Elsevier2015

Cortical Projection From the Premotor or Primary Motor Cortex to the Subthalamic Nucleus in Intact and Parkinsonian Adult Macaque Monkeys: A Pilot Tracing Study

Simon Borgognon, Jocelyne Bloch

Besides the main cortical inputs to the basal ganglia, via the corticostriatal projection, there is another input via the corticosubthalamic projection (CSTP), terminating in the subthalamic nucleus (STN). The present study investigated and compared the CS ...

FRONTIERS MEDIA SA2020

Lateral medullary vascular compression manifesting as paroxysmal hypertension

Jocelyne Bloch

Neurovascular compression of the rostral ventrolateral medulla (RVLM) has been described as a possible cause of refractory essential hypertension. We present the case of a patient affected by episodes of severe paroxysmal hypertension, some episodes associ ...

2024

Electronic Dura Mater Meddling in the Central Nervous System

Stéphanie Lacour, Grégoire Courtine, Jocelyne Bloch

IMPORTANCE A growing number of neurologic treatments rely on neural implants capable of delivering electrical and chemical stimulation to targeted regions of the central nervous system for extended periods. OBJECTIVE To assess the potential of a novel clas ...

Amer Medical Assoc2017

Epidural electrical stimulation of the cervical dorsal roots restores voluntary upper limb control in paralyzed monkeys

Tomislav Milekovic, Giuseppe Schiavone, Florian Dylan Fallegger, Stéphanie Lacour, Grégoire Courtine, Quentin Barraud, Katia Galan, Jocelyne Bloch, Nicholas David James

Regaining arm control is a top priority for people with paralysis. Unfortunately, the complexity of the neural mechanisms underlying arm control has limited the effectiveness of neurotechnology approaches. Here, we exploited the neural function of survivin ...

NATURE PORTFOLIO2022

Differential contributions of subthalamic beta rhythms and 1/f broadband activity to motor symptoms in Parkinson’s disease

Ricardo Andres Chavarriaga Lozano, José del Rocio Millán Ruiz, Stéphanie Martin, Robert Leeb, Inaki Asier Iturrate Gil, Aleksander Sobolewski, Jocelyne Bloch

Excessive beta oscillatory activity in the subthalamic nucleus (STN) is linked to Parkinson’s Disease (PD) motor symptoms. However, previous works have been inconsistent regarding the functional role of beta activity in untreated Parkinsonian states, quest ...

2018

A multidirectional gravity-assist algorithm that enhances locomotor control in patients with stroke or spinal cord injury

Auke Ijspeert, Grégoire Courtine, Selin Anil, Joachim von Zitzewitz, Marco Capogrosso, Jean-Baptiste Mignardot, Nicolas Francis Fumeaux, Jessica Lanini, Jocelyne Bloch

Gait recovery after neurological disorders requires remastering the interplay between body mechanics and gravitational forces. Despite the importance of gravity-dependent gait interactions and active participation for promoting this learning, these essenti ...

Amer Assoc Advancement Science2017

Targeted neurotechnology restores walking in humans with spinal cord injury

Vincent Delattre, Camille Georgette Marie Le Goff-Mignardot, Salif Axel Komi, Elvira Pirondini, Grégoire Courtine, Miroslav Caban, Joachim von Zitzewitz, Marco Capogrosso, Jean-Baptiste Mignardot, Fabien Bertrand Paul Wagner, Robin Jonathan Demesmaeker, Andreas Rowald, Karen Minassian, Esra Neufeld, Jocelyne Bloch, Ismael Seanez Gonzalez, Laura Ann McCracken

2018

Neuroprosthetic technologies to augment the impact of neurorehabilitation after spinal cord injury

Silvestro Micera, Grégoire Courtine, Joachim von Zitzewitz, Eduardo Martin Moraud, Marco Capogrosso, Jean-Baptiste Mignardot, Nicolas Francis Fumeaux, Fabien Bertrand Paul Wagner, Jocelyne Bloch

Spinal cord injury leads to a range of disabilities, including limitations in locomotor activity, that seriously diminish the patients’ autonomy and quality of life. Electrochemical neuromodulation therapies, robot-assisted rehabilitation and willpower-bas ...

2015

System for micturition control in a mammal with bladder disfunction

Grégoire Courtine, Jocelyne Bloch, Jordan Squair, Loïs Thomas Romain Mahe

The present invention relates to a neuromodulation/neurostimulation system (10) for stimulating at least one neuronal circuitry responsible for micturition control in a mammal with bladder disfunction, especially for bladder relaxation and/or for bladder v ...

2024

Neuromodulation/neurostimulation system for mitigating locomotor deficits of parkinson's disease, spinal cord injury (sci), stroke and/or other neurological disorders

Tomislav Milekovic, Léonie Asboth, Grégoire Courtine, Eduardo Martin Moraud, Robin Jonathan Demesmaeker, Newton Cho, Jocelyne Bloch, Jordan Squair

The present invention relates to a combined neuromodulation and/or neurostimulation system (10) for mitigating locomotor deficits of/or neuronal disorders, especially Parkinson's disease, said system (10) comprising: - at least one Deep Brain Stimulation ( ...

2023