Stephan Quessy
YOU?
Author Swipe
View article: The effects of repetitive transcranial magnetic stimulation on the brain of non-human primates with chronic stroke
The effects of repetitive transcranial magnetic stimulation on the brain of non-human primates with chronic stroke Open
View article: 3D ultrasound localization microscopy of the nonhuman primate brain
3D ultrasound localization microscopy of the nonhuman primate brain Open
This work was supported by the New Frontier in Research Fund (NFRFE-2022-00590), by the Canada Foundation for Innovation under grant 38095, by the Natural Sciences and Engineering Research Council of Canada (NSERC) under discovery grant RG…
View article: Variations in Clustering of Multielectrode Local Field Potentials in the Motor Cortex of Macaque Monkeys during a Reach-and-Grasp Task
Variations in Clustering of Multielectrode Local Field Potentials in the Motor Cortex of Macaque Monkeys during a Reach-and-Grasp Task Open
There is experimental evidence of varying correlation among the elements of the neuromuscular system over the course of the reach-and-grasp task. The aim of this study was to investigate if modifications in correlations and clustering can …
View article: Differential Modulation of Local Field Potentials in the Primary and Premotor Cortices during Ipsilateral and Contralateral Reach to Grasp in Macaque Monkeys
Differential Modulation of Local Field Potentials in the Primary and Premotor Cortices during Ipsilateral and Contralateral Reach to Grasp in Macaque Monkeys Open
Hand movements are associated with modulations of neuronal activity across several interconnected cortical areas, including the primary motor cortex (M1) and the dorsal and ventral premotor cortices (PMd and PMv). Local field potentials (L…
View article: Towards Transcranial 3D Ultrasound Localization Microscopy of the Nonhuman Primate Brain
Towards Transcranial 3D Ultrasound Localization Microscopy of the Nonhuman Primate Brain Open
Hemodynamic changes occur in stroke and neurodegenerative diseases. Developing imaging techniques allowing the in vivo visualization and quantification of cerebral blood flow would help better understand the underlying mechanism of those c…
View article: Variations in clustering of multielectrode local field potentials in the motor cortex of macaque monkeys during a reach-and-grasp task
Variations in clustering of multielectrode local field potentials in the motor cortex of macaque monkeys during a reach-and-grasp task Open
There is experimental evidence of varying correlation among the elements of the neuromuscular system over the course of the reach-and-grasp task. Several neuromuscular disorders are accompanied by anomalies in muscular coupling during the …
View article: SMALL SCALE HETEROGENEITY OF MUA ENABLES HIGH ACCURACY MOVEMENT DECODING
SMALL SCALE HETEROGENEITY OF MUA ENABLES HIGH ACCURACY MOVEMENT DECODING Open
View article: Autonomous optimization of neuroprosthetic stimulation parameters that drive the motor cortex and spinal cord outputs in rats and monkeys
Autonomous optimization of neuroprosthetic stimulation parameters that drive the motor cortex and spinal cord outputs in rats and monkeys Open
Neural stimulation can alleviate paralysis and sensory deficits. Novel high-density neural interfaces can enable refined and multipronged neurostimulation interventions. To achieve this, it is essential to develop algorithmic frameworks ca…
View article: Optimizing Neuroprosthetic Therapies via Autonomous Learning Agents
Optimizing Neuroprosthetic Therapies via Autonomous Learning Agents Open
View article: Interhemispheric modulations of motor outputs by the rostral and caudal forelimb areas in rats
Interhemispheric modulations of motor outputs by the rostral and caudal forelimb areas in rats Open
In rats, forelimb movements are evoked from two cortical regions, the caudal and rostral forelimb areas (CFA and RFA, respectively). These areas are densely interconnected and RFA induces complex and powerful modulations of CFA outputs. CF…
View article: Modulatory effects of the supplementary motor area on primary motor cortex outputs
Modulatory effects of the supplementary motor area on primary motor cortex outputs Open
Premotor areas of primates are specialized cortical regions that can contribute to hand movements by modulating the outputs of the primary motor cortex (M1). The goal of the present work was to study how the supplementary motor area (SMA) …
View article: Contrasting Modulatory Effects from the Dorsal and Ventral Premotor Cortex on Primary Motor Cortex Outputs
Contrasting Modulatory Effects from the Dorsal and Ventral Premotor Cortex on Primary Motor Cortex Outputs Open
The dorsal and ventral premotor cortices (PMd and PMv, respectively) each take part in unique aspects for the planning and execution of hand movements. These premotor areas are components of complex anatomical networks that include the pri…
View article: Modulatory Effects of the Ipsi and Contralateral Ventral Premotor Cortex (PMv) on the Primary Motor Cortex (M1) Outputs to Intrinsic Hand and Forearm Muscles in<i>Cebus apella</i>
Modulatory Effects of the Ipsi and Contralateral Ventral Premotor Cortex (PMv) on the Primary Motor Cortex (M1) Outputs to Intrinsic Hand and Forearm Muscles in<i>Cebus apella</i> Open
The ventral premotor cortex (PMv) is a key node in the neural network involved in grasping. One way PMv can carry out this function is by modulating the outputs of the primary motor cortex (M1) to intrinsic hand and forearm muscles. As man…
View article: Parallel Cortical Networks Formed by Modular Organization of Primary Motor Cortex Outputs
Parallel Cortical Networks Formed by Modular Organization of Primary Motor Cortex Outputs Open
View article: Different Patterns of Cortical Inputs to Subregions of the Primary Motor Cortex Hand Representation in<i>Cebus apella</i>
Different Patterns of Cortical Inputs to Subregions of the Primary Motor Cortex Hand Representation in<i>Cebus apella</i> Open
The primary motor cortex (M1) plays an essential role in the control of hand movements in primates and is part of a complex cortical sensorimotor network involving multiple premotor and parietal areas. In a previous study in squirrel monke…
View article: Supplementary Material for: Which Aspects of Stroke Do Animal Models Capture? A Multitracer Micro-PET Study of Focal Ischemia with Endothelin-1
Supplementary Material for: Which Aspects of Stroke Do Animal Models Capture? A Multitracer Micro-PET Study of Focal Ischemia with Endothelin-1 Open
Background: Cortical injections of the vasoconstrictor endothelin-1 (ET1) have widely been used to induce focal circumscribed ischemic lesions in the motor cortex of rodents in the context of stroke recovery studies. In order…
View article: The Effect of Lesion Size on the Organization of the Ipsilesional and Contralesional Motor Cortex
The Effect of Lesion Size on the Organization of the Ipsilesional and Contralesional Motor Cortex Open
Recovery of hand function following lesions in the primary motor cortex (M1) is associated with a reorganization of premotor areas in the ipsilesional hemisphere, and this reorganization depends on the size of the lesion. It is not clear h…
View article: Interactions between rostral and caudal cortical motor areas in the rat
Interactions between rostral and caudal cortical motor areas in the rat Open
In rats, forelimb movements can be evoked from two distinct cortical regions, the rostral (RFA) and the caudal (CFA) forelimb areas. RFA and CFA have numerous reciprocal connections, and their projections reach several common targets, whic…