A5032432667- Visual perception and processing mechanisms
- Heavy Metal Exposure and Toxicity
- Multisensory perception and integration
- Mercury impact and mitigation studies
- Ophthalmology and Visual Impairment Studies
- Neural and Behavioral Psychology Studies
- Neural dynamics and brain function
- Health, Environment, Cognitive Aging
- Tactile and Sensory Interactions
- Anesthesia and Neurotoxicity Research
- Toxic Organic Pollutants Impact
- Color perception and design
- Retinal Development and Disorders
- Birth, Development, and Health
- Air Quality and Health Impacts
- Pesticide Exposure and Toxicity
- Functional Brain Connectivity Studies
- Olfactory and Sensory Function Studies
- Noise Effects and Management
- Neonatal and fetal brain pathology
- Effects and risks of endocrine disrupting chemicals
- Spatial Cognition and Navigation
- Autism Spectrum Disorder Research
- Carcinogens and Genotoxicity Assessment
- EEG and Brain-Computer Interfaces
Université du Québec à Montréal
2016-2025
Centre Hospitalier Universitaire Sainte-Justine
2016-2025
Université de Montréal
2009-2024
Wayne State University
2009-2011
Boston Children's Hospital
2009-2011
Harvard University
2009-2011
Université Laval
2011
Centre hospitalier universitaire de Québec
2011
University at Buffalo, State University of New York
2009
University of Cape Town
2009
Viewing a speaker's articulatory movements substantially improves listener's ability to understand spoken words, especially under noisy environmental conditions. It has been claimed that this gain is most pronounced when auditory input weakest, an effect related well-known principle of multisensory integration--"inverse effectiveness." In keeping with the predictions principle, present study showed substantial in speech enhancement at even lowest signal-to-noise ratios (SNRs) used (-24 dB),...
Under noisy listening conditions, visualizing a speaker's articulations substantially improves speech intelligibility. This multisensory integration ability is crucial to effective communication, and the appropriate development of this capacity greatly impacts child's successfully navigate educational social settings. Research shows that abilities continue developing late into childhood. The primary aim here was track these in children with autism, since deficits are increasingly recognized...
Background: Manganese neurotoxicity is well documented in individuals occupationally exposed to airborne particulates, but few data are available on risks from drinking-water exposure.Objective: We examined associations of exposure concentrations manganese water and hair with memory, attention, motor function, parent- teacher-reported hyperactive behaviors.Methods: recruited 375 children measured home tap (MnW) (MnH). estimated intake ingestion. Using structural equation modeling, we between...
The Maternal-Infant Research on Environmental Chemicals (MIREC) Study was established to obtain Canadian biomonitoring data for pregnant women and their infants, examine potential adverse health effects of prenatal exposure priority environmental chemicals pregnancy infant health.Women were recruited during the first trimester from 10 sites across Canada followed through delivery. Questionnaires administered post-delivery collect information demographics, occupation, life style, medical...
In the absence of visual input, question arises as to how complex spatial abilities develop and brain adapts this modality. We explored navigational skills in both early late blind individuals structural differences hippocampus, a region well known be involved processing. Thirty-eight participants were divided into three groups: (n = 12; loss vision before 5 years age; mean age 33.8 years), 7; after 14 39.9 years) 19 sighted, blindfolded matched controls. Subjects undertook route learning...
Observing a speaker's articulations substantially improves the intelligibility of spoken speech, especially under noisy listening conditions. This multisensory integration speech inputs is crucial to effective communication. Appropriate development this ability has major implications for children in classroom and social settings, deficits it have been linked number neurodevelopmental disorders, autism. It clear from structural imaging studies that there prolonged maturational course within...
Background: Lead (Pb) and polychlorinated biphenyls (PCBs) are neurotoxic contaminants that have been related to impairment in response inhibition.Objectives: In this study we examined the neurophysiological correlates of inhibition deficits associated with these exposures, using event-related potentials (ERPs) a sample school-age Inuit children from Arctic Québec exposed through their traditional diet.Methods: prospective longitudinal study, assessed 196 (mean age, 11.3 years) on visual...
Purpose: Several recent studies have demonstrated that following short-term monocular deprivation in normal adults, the patched eye, rather than unpatched becomes stronger subsequent binocular viewing.However, little is known about site and nature of underlying processes.In this study, we examine mechanisms by measuring steady-state visual evoked potentials (SSVEPs) as an index neural contrast response early areas.Methods: The experiment consisted three consecutive stages: a pre-patching EEG...
Visually challenged individuals often compensate for their handicap by developing supra-normal abilities in remaining sensory systems. Here, we examined the scalp distribution of components N1 and P3 auditory evoked potentials during a sound localization task four totally blind subjects who had previously shown better performance than sighted subjects. Both waves peaked at usual positions while performed task. However, these two were also found to be robust over occipital regions this...
Background:Several studies suggest that exposure to organophosphate insecticides (OP) during pregnancy impairs neurodevelopment in children.Objectives:We evaluated associations between biomarkers of prenatal and postnatal OP cognitive function 6-year-olds a French longitudinal birth cohort.Methods:In 2002–2006, the PELAGIE mother–child cohort enrolled pregnant women from Brittany. For random subcohort, we measured nonspecific dialkylphosphate metabolites (DAP) one maternal urine sample,...