A5022844549- Autism Spectrum Disorder Research
- Neural dynamics and brain function
- Functional Brain Connectivity Studies
- Multisensory perception and integration
- Tactile and Sensory Interactions
- Olfactory and Sensory Function Studies
- Genetics and Neurodevelopmental Disorders
- Child Development and Digital Technology
- EEG and Brain-Computer Interfaces
- Visual perception and processing mechanisms
- Neuroscience and Music Perception
- Child and Animal Learning Development
- Attention Deficit Hyperactivity Disorder
- Virology and Viral Diseases
- Advanced Optical Imaging Technologies
- Behavioral and Psychological Studies
- Hearing Loss and Rehabilitation
- Neural and Behavioral Psychology Studies
- Photorefractive and Nonlinear Optics
- Electrowetting and Microfluidic Technologies
- Language Development and Disorders
- Biochemical Analysis and Sensing Techniques
- Color perception and design
University of Geneva
2014-2024
Office Médico Pédagogique
2016
Carnegie Mellon University
2013
University Hospital of Lausanne
2009-2010
University of Lausanne
2009-2010
Hôpital Nestlé
2010
Several lines of research have documented early-latency non-linear response interactions between audition and touch in humans non-human primates. That these effects been obtained under anesthesia, passive stimulation, as well speeded reaction time tasks would suggest that some multisensory are not directly influencing behavioral outcome. We investigated whether the initial neural a direct bearing on speed times. Electrical neuroimaging analyses were applied to event-related potentials...
Social impairments are a hallmark of Autism Spectrum Disorders (ASD), but empirical evidence for early brain network alterations in response to social stimuli is scant ASD. We recorded the gaze patterns and activity toddlers with ASD their typically developing peers while they explored dynamic scenes. Directed functional connectivity analyses based on electrical source imaging revealed frequency specific atypicalities theta alpha bands, manifesting as both driving connections from key nodes...
Abstract Autism spectrum disorders (ASD) are associated with disruption of large-scale brain network. Recently, we found that directed functional connectivity alterations social networks a core component atypical development at early developmental stages in ASD. Here, investigated the spatio-temporal dynamics whole-brain neuronal subsecond scale 113 toddlers and preschoolers (66 ASD) using an EEG microstate approach. We first determined predominant microstates established clustering methods....
Atypical deployment of social gaze is present early on in toddlers with autism spectrum disorders (ASDs). Yet, studies characterizing the developmental dynamic behind it are scarce. Here, we used a data-driven method to delineate change visual exploration interaction over childhood years autism. Longitudinal eye-tracking data were acquired as children ASD and their typically developing (TD) peers freely explored short cartoon movie. We found divergent moment-to-moment patterns compared TD...
Auditory spatial representations are likely encoded at a population level within human auditory cortices. We investigated learning-induced plasticity of discrimination in healthy subjects using auditory-evoked potentials (AEPs) and electrical neuroimaging analyses. Stimuli were 100 ms white-noise bursts lateralized with varying interaural time differences. In three experiments, was induced 40 min training. During training, accuracy significantly improved from near-chance levels to ∼75%....
Sensory information can interact to impact perception and behavior. Foods are appreciated according their appearance, smell, taste, texture. Athletes dancers combine visual, auditory, somatosensory coordinate movements. Under laboratory settings, detection discrimination likewise facilitated by multisensory signals. Research over the past several decades has shown both that requisite anatomy exists support interactions between sensory systems in regions canonically designated as exclusively...
Background: Atypical neural processing of social visual information contributes to impaired cognition in autism spectrum disorder. However, evidence for early developmental alterations contingencies is scarce. Most studies the literature have been conducted older children and adults. Here, we aimed investigate with disorder compared age-matched typically developing peers. Methods: We used a combination 129-channel electroencephalography high-resolution eye-tracking study differences dynamic...
Communication difficulties are one of the core criteria in diagnosing autism spectrum disorder (ASD), and often characterized by speech reception difficulties, whose biological underpinnings not yet identified. This deficit could denote atypical neuronal ensemble activity, as reflected neural oscillations. Atypical cross-frequency oscillation coupling, particular, disrupt joint tracking prediction dynamic acoustic stimuli, a dual process that is essential for comprehension. Whether such...
Abstract Subliminal perception is strongly associated to the processing of meaningful or emotional information and has mostly been studied using visual masking. In this study, we used high density 256‐channel EEG coupled with an liquid crystal display (LCD) tachistoscope characterize spatio‐temporal dynamics brain response checkerboard stimuli (Experiment 1) blank 2) presented without a mask for 1 ms (visible), 500 µs (partially visible), 250 (subliminal) by applying time‐wise,...
Abstract Atypical deployment of social gaze is present early on in toddlers with autism spectrum disorders (ASDs). Yet, studies characterizing the developmental dynamic behind it are scarce. Here we used a data-driven method to delineate change visual exploration interaction over childhood years autism. Longitudinal eye-tracking data were acquired as children ASD and their typically developing (TD) peers freely explored short cartoon movie. We found divergent moment-to-moment patterns...
Summary Communication difficulties in autism spectrum disorder (ASD) involve a speech reception deficit, whose biological causes are not yet identified. This deficit could denote atypical neuronal ensemble activity, as reflected by neural oscillations. Atypical cross-frequency oscillation coupling particular disrupt the possibility to jointly track and predict dynamic acoustic stimuli, dual process that is essential for comprehension. Whether such anomalies can already be found very young...
ABSTRACT Social impairments are a hallmark of Autism Spectrum Disorders (ASD), but empirical evidence for early brain network alterations in response to social stimuli is scant ASD. Here, we recorded the gaze patterns and activity toddlers preschoolers with ASD their typically developing (TD) peers while they explored dynamic scenes. Source-space directed functional connectivity analyses revealed presence theta frequency band, manifesting as increased driving (hyper-activity) stronger...
ABSTRACT Disruption of large-scale brain networks is associated with autism spectrum disorders (ASD). Recently, we found that directed functional connectivity alterations social are a core component atypical development at early developmental stages in ASD (Sperdin et al., 2018). Here, investigated the spatio-temporal dynamics whole-brain neuronal subsecond scale 90 toddlers and preschoolers (47 ASD) using an EEG microstate approach. Results revealed presence five classes best described...
Abstract Background: EEG microstates are defined in the literature as quasi-stable topographies of electric fields ongoing EEG, lasting approximately 100 milliseconds and representing sub-second coherent activation within global functional brain networks. Recently, we found early alterations spatio-temporal dynamics syntax states toddlers preschoolers with autism spectrum disorders (ASD) compared to their typically developing (TD) peers. Method: Here, investigated how these evolve over time...