A5080090029- Visual perception and processing mechanisms
- Neural and Behavioral Psychology Studies
- Memory and Neural Mechanisms
- Face Recognition and Perception
- Neural dynamics and brain function
- Cognitive Abilities and Testing
- Impact of Technology on Adolescents
- Sleep and Wakefulness Research
- Spatial Cognition and Navigation
- Gaze Tracking and Assistive Technology
- Child and Animal Learning Development
- Hearing Loss and Rehabilitation
- Neurogenesis and neuroplasticity mechanisms
- Multisensory perception and integration
- Neuroscience and Music Perception
- Climate variability and models
- Meteorological Phenomena and Simulations
- Noise Effects and Management
- Fire effects on ecosystems
- Functional Brain Connectivity Studies
- Biochemical effects in animals
- Cultural Differences and Values
- Action Observation and Synchronization
- Memory Processes and Influences
- Anesthesia and Neurotoxicity Research
Université de Montréal
2015-2024
University of British Columbia
2011-2023
University of Johannesburg
2023
BC Hydro (Canada)
2022-2023
International Laboratory for Brain, Music and Sound Research
2016-2018
Cégep Marie-Victorin
2017
Centre de recherche cerveau et cognition
2016-2017
Institut Universitaire de Gériatrie de Montréal
2016
University of Toronto
2008-2012
Nelson Hospital
2007
In late June 2021 a heatwave of unprecedented magnitude impacted the Pacific Northwest region Canada and United States. Many locations broke all-time maximum temperature records by more than 5 °C, Canadian national record was broken 4.6 with new 49.6 °C. Here, we provide comprehensive summary this event its impacts. Upstream diabatic heating played key role in anomaly. Weather forecasts provided advanced notice event, while sub-seasonal showed an increased likelihood heat extreme lead times...
Visuospatial experience, the prolonged engagement in a demanding visual task, obtained through action video game play enhances several and cognitive processes. The underlying mechanisms involved these processes, however, remain unclear. Here we demonstrate that experience with games modulates early sensory processing, resulting increases sensitivity to salient events capture attention. In two experiments, show using Temporal Order Judgment (TOJ) Signal Detection Paradigm ( d′) players...
Maintaining grey matter within the hippocampus is important for healthy cognition. Playing 3D-platform video games has previously been shown to promote in younger adults. In current study, we tested impact of game training (i.e., Super Mario 64) on hippocampus, cerebellum, and dorsolateral prefrontal cortex (DLPFC) older Older adults who were 55 75 years age randomized into three groups. The experimental group (VID; n = 8) engaged a over period 6 months. Additionally, an active control took...
The habitual playing of video games is associated with increased grey matter and activity in the striatum. Studies humans rodents have shown an inverse relationship between striatum hippocampus. We investigated whether action game also use response learning strategies during navigation, known to be dependent on caudate nucleus striatum, when presented a dual solution task. tested 26 players (actionVGPs) 33 non-action (nonVGPs) 4-on-8 virtual maze visual attention event-related potential...
Humans show a remarkable capacity to navigate various environments using different navigation strategies, and we know that strategy changes across the life span. However, this observation has been based on studies of small sample sizes. To end, used mobile app-based video game (Sea Hero Quest) test virtual strategies memory performance within distinct radial arm maze level in over 37,000 participants. Players were presented with six pathways (three open three closed) required collect target....
Previous studies that have found attentional capture effects for stimuli of motivational significance do not directly measure initial deployment, leaving it unclear to what extent these items produce capture. Visual prior entry, as measured by temporal order judgments (TOJs), rests on the premise allocated attention accelerates perception, is, receive first are perceived first; thus, this method is a sensitive and direct time course deployment. The authors demonstrate, using novel TOJ...
Research examining the impact of video games on neural systems has largely focused visual attention and motor control. Recent evidence now shows that can also hippocampal memory system. Further, action 3D-platform video-game genres are thought to have differential impacts this In review, we examine specific design elements unique either or break down how they could favor discourage use system during gameplay. Analysis is based well-established principles hippocampus-dependent...
The extent to which digital media use by adolescents contributes poor mental health, or vice-versa, remains unclear. purpose of the present study is clarify strength and direction associations between adolescent internet development depression symptoms using a longitudinal modeling approach. We also examine whether differ for boys girls.
Prioritization of affective events may occur via two parallel pathways originating from the retina—a parvocellular (P) pathway projecting to ventral-stream structures responsible for object recognition or a faster and phylogenetically older magnocellular (M) dorsal-stream localization action. It has previously been demonstrated that retinal exposure red diffuse light suppresses M-cell neural activity. We tested whether fast propagation along dorsal-action drives an accelerated conduction...
Abstract In late June to early July 2021 a heatwave of unprecedented magnitude impacted the Pacific Northwest region, lands colonially named British Columbia (BC) and Alberta (AB) in Canada, Washington (WA) Oregon (OR) United States. Many locations broke all-time maximum daily temperature records by more than 5°C. The standing Canadian national record was broken on three consecutive days, at multiple locations, with highest 49.6°C recorded, 4.6°C higher previous record. Weather forecasts...
When multiple stimuli are concurrently displayed in the visual field, they must compete for neural representation at processing expense of their contemporaries. This biased competition is thought to begin as early primary cortex, and can be driven by salient low-level stimulus features. Stimuli important an organism's survival, such facial expressions signaling environmental threat, might similarly prioritized this stage processing. In present study, we used ERP recordings from striate...
Although a considerable amount of research has investigated the planning and production saccadic eye movements, it remains unclear whether (a) central processes prior to movement onset largely determine these movements or (b) they receive online correction during actual trajectory. To investigate this issue, authors measured spatial position at specific kinematic markers (i.e., peak acceleration, velocity, deceleration, saccade endpoint). In 2 experiments, examined saccades ranging in...
Objective: We aim to investigate the direction of causality association between adolescent video game playing and later development ADHD symptoms using a population-based sample Canadian Youth. Method: The present study is based on longitudinal cohort data ( N = 1,467). Youth self-reported weekly hours as well at both 12 13 years age. Results: Cross-lagged panel model were estimated examine how prospectively contributes while simultaneously considering may contribute videogame playing....
Vision is altered when people place their hands near the object they are observing. To investigate neural processes underlying this effect, we measured electroencephalographic visual-evoked potentials (VEPs) elicited by reversing checkerboards, while participants' either surrounded visual display or rested at sides. We found P2 component was attenuated for hand-proximal stimuli, but only participants attended to location of checkerboard. In Experiment 1, performed an attention-demanding...
Action video game playing is associated with improved visuomotor performance; however, the underlying neural mechanisms this increased performance are not well understood. Using Serial Reaction Time Task in conjunction Transcranial Magnetic Stimulation, we investigated if displayed action players (actionVGPs) was corticospinal plasticity primary motor cortex (M1) compared to non-video (nonVGPs). Further, assessed actionVGPs and nonVGPs differences procedural learning as measured by SRTT. We...
When a unique stimulus is embedded in an otherwise homogenous display, it thought to "pop-out" due its relative increase salience. We investigated whether the visual system has ability equally prioritize multiple salient pop-out items competing for awareness or this early stage of processing constrained by capacity limits. used signal detection ( d′) methods determine if sensitivity item decreases as function number total present display. Participants engaged task where they had report...