A5059574415- Transcranial Magnetic Stimulation Studies
- Functional Brain Connectivity Studies
- EEG and Brain-Computer Interfaces
- Neural and Behavioral Psychology Studies
- Neural dynamics and brain function
- Face Recognition and Perception
- Action Observation and Synchronization
- Autism Spectrum Disorder Research
- Advanced Neuroimaging Techniques and Applications
- Motor Control and Adaptation
- Stroke Rehabilitation and Recovery
- Obsessive-Compulsive Spectrum Disorders
- Vestibular and auditory disorders
- Tactile and Sensory Interactions
- Neural Networks and Applications
- Neurobiology of Language and Bilingualism
- Neurological disorders and treatments
- Visual perception and processing mechanisms
- Hearing Impairment and Communication
- Muscle activation and electromyography studies
- Death Anxiety and Social Exclusion
- Aging and Gerontology Research
- Spatial Neglect and Hemispheric Dysfunction
- Psychosomatic Disorders and Their Treatments
- Multisensory perception and integration
Clinique Romande de Réadaptation
2022-2024
École Polytechnique Fédérale de Lausanne
2022-2024
Laboratoire de Psychologie et NeuroCognition
2014-2024
Centre National de la Recherche Scientifique
2015-2024
Université Grenoble Alpes
2015-2024
Université Savoie Mont Blanc
2019-2024
Wyss Center for Bio and Neuroengineering
2024
Inserm
2014-2021
Grenoble Institute of Neurosciences
2016-2021
Centre Hospitalier Universitaire de Grenoble
2014-2021
The cerebellum is a major motor structure. However, in humans, its efferent topographical organization remains controversial and indirectly inferred from neuroimaging animal studies. Even central questions such as 'Can we evoke limb movements by stimulating the cerebellar cortex?' have no clear answer. To address this issue, electrically stimulated posterior of 20 human patients undergoing surgery for tumours located outside structure (e.g. pineal gland, quadrigeminal plate). Stimulation,...
Significance The motor repertoire of infants is narrow. Yet newborns can accurately bring their hands toward mouth for self-feeding, thumb-sucking, or perioral exploration, thus showing fine coordinated movement synergies between the hand and mouth. Here, we show that these gestures high ethological value are selectively encoded in human brain represented as integrated primitives within precentral gyrus, a key region sensorimotor processing. These findings have major implications our...
Abstract Recent research suggests that autistic females may have superior socio-cognitive abilities compared to males, potentially contributing underdiagnosis in females. However, it remains unclear whether these differences arise from distinct neurophysiological functioning males and This study addresses this question by presenting 41 48 non-autistic adults with a spatially filtered faces oddball paradigm. Analysis of event-related potentials scalp electroencephalography reveal profile fell...
The feeling of being excluded from a social interaction triggers pain, sensation as intense actual physical pain. Little is known about the neurophysiological underpinnings We addressed this issue using intracranial electroencephalography in 15 patients performing ball game where inclusion and exclusion blocks were alternated. Time–frequency analyses showed an increase power theta-band oscillations during anterior insula (AI) posterior insula, subgenual cingulate cortex (sACC), fusiform...
The modular organization of the cortex refers to subsets highly interconnected nodes, sharing specific cytoarchitectural and dynamical properties. These properties condition level excitability local pools neurons. In this study, we described TMS evoked potentials (TEP) input-output provide new insights into regional cortical excitability. We combined robotized with EEG disentangle region-specific TEP from threshold saturation describe their oscillatory contents. Twenty-two young healthy...
The literature investigating the effects of alpha oscillations on corticospinal excitability is divergent. We believe inconsistency in findings may arise, among others, from electroencephalography (EEG) processing for brain-state determination. Here, we provide further insights cortical and quantify impact different EEG processing.
When we talk communicate our intentions. Although the origin of intentional action is debated in cognitive neuroscience, question how brain generates intention speech remains still open. Using magnetoencephalography, investigated cortical dynamics engaged when healthy subjects attended to either their speak or actual speech. We found that activity right and left parietal cortex increased before became aware intending speak. Within time window activation, also observed a transient frontal...
The study assumed that the antisaccade (AS) task is a relevant psychophysical tool to assess (i) short-term neuromodulation of dorsolateral prefrontal cortex (DLPFC) induced by intermittent theta burst stimulation (iTBS) and (ii) mood change occurring during course treatment. Saccadic inhibition known strongly involve DLPFC, whose with iTBS requires less time lower intensity, as well results in longer aftereffects than conventional repetitive transcranial magnetic (rTMS). Active or sham was...
The use of TMS-EEG coupling as a neuroimaging tool for the functional exploration human brain recently gained strong interest. If this directly inherits fine temporal resolution from EEG, its spatial counterpart remains unknown. In study, we explored by evaluating minimal distance between two stimulated cortical sites that would significantly evoke different response dynamics. TMS evoked responses were mapped on sensorimotor region in twenty participants. stimulation grid was composed nine...
Social pain after exclusion by others activates brain regions also involved in physical pain. Here we evaluated whether monetary reward could compensate for the negative feeling of social brain. To address this question used unique technique intracranial electroencephalography subjects with drug resistant epilepsy. Specifically, recorded theta activity from electrodes implanted insular cortex while experienced conditions inclusion and associated gain loss. Our study confirmed that rhythm is...
Cortical excitation/inhibition dynamics have been suggested as a key mechanism occurring after stroke. Their supportive or maladaptive role in the course of recovery is still not completely understood. Here, we used transcranial magnetic stimulation (TMS)-electroencephalography coupling to study cortical reactivity and intracortical GABAergic inhibition, well their relationship residual motor function longitudinally patients with
Face processing relies on predictive processes driven by low spatial frequencies (LSF) that convey coarse information prior to fine conveyed high frequencies. However, autistic individuals might have atypical processes, contributing facial difficulties. This may be more normalized in females, who often exhibit better socio-communicational abilities than males. We hypothesized females would display a typical coarse-to-fine for socio-emotional stimuli compared To test this hypothesis, we asked...
Research on emotion showed an increase, with age, in prevalence of positive information relative to negative ones. This effect is called positivity effect. From the cerebral analysis Late Positive Potential (LPP), sensitive attention, our study investigated which extent arousal level scenes differently processed between young and older adults and, scenes, depending its value, may contextually modulate processing (and neutral) favor observation a age. With this aim, two scene groups...
Visual processing is thought to function in a coarse-to-fine manner. Low spatial frequencies (LSF), conveying coarse information, would be processed early generate predictions. These LSF-based predictions facilitate the further integration of high (HSF), fine details. The predictive role LSF might crucial automatic face processing, where performance could explained by an accurate selection clues processing. In present study, we used visual Mismatch Negativity (vMMN) paradigm presenting...
According to embodied theories, motor and language processing bidirectionally interact: Motor activation modulates behavior in lexico-semantic tasks (semantic resonance), understanding motor-related words entails of the corresponding brain areas (motor resonance). Whereas many studies investigated such interaction first (L1), only few did so a second (L2), focusing on resonance. Here, we directly compared L1 late L2, for time both terms semantic resonance magnitude timing, by taking...
Visually induced illusion of self-motion (vection) has been used as a tool to address neural correlates visual-vestibular interaction. The extent which vestibular cortical areas are deactivated during vection varies from one study another. main question in this is whether such deactivation depends on the conflict by visual motion. A motion about line sight (roll motion) induces visual-canal upright and supine observers. An additional visual-otolith arises position only, with graviceptive...