Jonathan Doyon
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View article: Pedestrian collision avoidance in hemianopia during natural walking in immersive virtual reality
Pedestrian collision avoidance in hemianopia during natural walking in immersive virtual reality Open
Homonymous hemianopia (HH) patients report difficulties in avoiding collisions with other pedestrians. We evaluated pedestrian collision detection and avoidance behaviors in HH patients and healthy controls using a novel virtual reality (V…
View article: Comparing Object Localization Deficits in Desktop and Immersive Virtual Reality Search Tasks in Individuals with Cerebral Visual Impairment
Comparing Object Localization Deficits in Desktop and Immersive Virtual Reality Search Tasks in Individuals with Cerebral Visual Impairment Open
View article: Cerebral visual impairment is associated with altered gaze dynamics and conservative walking strategies to safely navigate dense, dynamic spaces in virtual reality
Cerebral visual impairment is associated with altered gaze dynamics and conservative walking strategies to safely navigate dense, dynamic spaces in virtual reality Open
View article: Feature identification learning both shapes and is shaped by spatial object-similarity representations
Feature identification learning both shapes and is shaped by spatial object-similarity representations Open
Object knowledge is bound together in semantic networks that can be spatially represented. How these knowledge representations shape and are in turn shaped by learning remains unclear. Here, we directly examined how object similarity repre…
View article: Accuracy of clinical symptoms and nuclear imaging in the diagnosis of infection in revision shoulder arthroplasty
Accuracy of clinical symptoms and nuclear imaging in the diagnosis of infection in revision shoulder arthroplasty Open
View article: Spatio-temporal collision envelope in virtual reality walking with colliding pedestrians
Spatio-temporal collision envelope in virtual reality walking with colliding pedestrians Open
View article: Coming together as a whole: lessons from connecting across sectors, cultures, and contexts to elevate efforts for planetary health
Coming together as a whole: lessons from connecting across sectors, cultures, and contexts to elevate efforts for planetary health Open
The Canadian Institute of Health Research Environment (IP4150712), Michael Smith Health Research BC (RA-2022-2872), and Vancouver Foundation (FOI19-1781).
View article: Understanding viewpoint changes in peripheral prisms for field expansion by virtual reality simulation
Understanding viewpoint changes in peripheral prisms for field expansion by virtual reality simulation Open
Prism field expansion is a common treatment for patients with peripheral field loss, shifting images from the blind field into the seeing field. The shifted image originates from a new viewpoint translated and rotated from the original vie…
View article: Understanding Viewpoint Changes in Peripheral Prisms for Field Expansion by Virtual Reality Simulation
Understanding Viewpoint Changes in Peripheral Prisms for Field Expansion by Virtual Reality Simulation Open
Prism field expansion is a common treatment for patients with peripheral field loss, shifting images from the blind field into the seeing field. The shifted image originates from a new viewpoint translated and rotated from the original vie…
View article: Understanding Viewpoint Changes in Peripheral Prisms for Field Expansion by Virtual Reality Simulation
Understanding Viewpoint Changes in Peripheral Prisms for Field Expansion by Virtual Reality Simulation Open
Prism field expansion is a common treatment for patients with peripheral field loss, shifting images from the blind field into the seeing field. The shifted image originates from a new viewpoint translated and rotated from the original vie…
View article: Dynamic collision envelope in virtual reality walking with colliding pedestrians
Dynamic collision envelope in virtual reality walking with colliding pedestrians Open
When walking, we detect possible collisions with other pedestrians and avoid them, estimating body volumes and safety margins. This safety margin, collision envelope, has been measured in limited conditions: only parallel approaching colli…
View article: Feature learning both shapes and is shaped by spatial object-similarity representations
Feature learning both shapes and is shaped by spatial object-similarity representations Open
Our knowledge of objects is bound together in semantic networks that can be spatially represented and reduced to simple binary category memberships or expanded to multi-dimensional feature maps. How these knowledge representations shape an…
View article: Transcutaneous electrical nerve stimulation (TENS) and extracorporeal shockwave therapy (ESWT) in lateral epicondylitis: a systematic review and meta-analysis
Transcutaneous electrical nerve stimulation (TENS) and extracorporeal shockwave therapy (ESWT) in lateral epicondylitis: a systematic review and meta-analysis Open
The available evidence does not support the use of passive electrophysiotherapy modalities, TENS or ESWT in the treatment of lateral epicondylitis.
View article: Representations of object-dissimilarity before and after concept learning
Representations of object-dissimilarity before and after concept learning Open
Adapting to novel environments requires reorganizing existing knowledge through learning. Mechanistic accounts for how humans represent and dynamically update knowledge remains poorly understood. Here, we characterize how object-similariti…
View article: Perception of action-relevant egocentric distance is not underestimated in virtual reality
Perception of action-relevant egocentric distance is not underestimated in virtual reality Open
In the past few decades, advances in virtual reality technologies have led to an explosion of investigations into visual perception. While each new generation of VR systems brings improvements in optics and graphical fidelity, an open ques…
View article: Closing in on a potential biomarker for early detection of autism: Reduced pupil responses to repeated multisensory stimuli in young children with autism
Closing in on a potential biomarker for early detection of autism: Reduced pupil responses to repeated multisensory stimuli in young children with autism Open
View article: Multifractality of posture modulates multisensory perception of stand-on-ability
Multifractality of posture modulates multisensory perception of stand-on-ability Open
By definition, perception is a multisensory process that unfolds in time as a complex sequence of exploratory activities of the organism. In such a system perception and action are integrated, and multiple energy arrays are available simul…
View article: DoyonHajnalSurberClarkKeltyStephen_data.xlsx
DoyonHajnalSurberClarkKeltyStephen_data.xlsx Open
Trial-by-trial dataset of participant responses and movement measurements for an affordance-confidence-matching task
View article: Luminance and surface texture discontinuities affect perception of object reachability in virtual reality.
Luminance and surface texture discontinuities affect perception of object reachability in virtual reality. Open
We investigated the effects of surface texture discontinuities and surface luminance on the perception of an object's reachability. Fifty-four naïve subjects were tested in an affordance paradigm where participants provided judgments about…
View article: It’s in the Way You Move: The Effects of Surface Luminance and Texture Discontinuities on Object-Reachability Revealed by Head-Motion in Virtual Reality
It’s in the Way You Move: The Effects of Surface Luminance and Texture Discontinuities on Object-Reachability Revealed by Head-Motion in Virtual Reality Open
Perceiving distance is at the heart of everyday actions like reaching for a cup of coffee. This action may depend on the biomechanical restrictions of the actor (arm-length), the physical distance of the cup, and environmental variables su…
View article: Comparison of the visual and haptic horizontal-vertical illusion
Comparison of the visual and haptic horizontal-vertical illusion Open
The Horizontal-Vertical illusion is a phenomenon in which participants underestimate the length of horizontal lines when compared to vertical lines of the same length (Yang, Dixon, & Proffitt, 1999). The illusion is traditionally thought o…
View article: Visual and haptic perception of the affordance of upright stance.
Visual and haptic perception of the affordance of upright stance. Open
Past research by Hajnal, Wagman, Doyon, and Clark (2016) found apparent differences among haptic and visual perception of the affordance of stand-on-ability. One reason for this discrepancy might be due to the imprecision and method of mea…
View article: Breaking Ground: Effects of Texture Gradient Disruption on the Visual Perception of Object Reach-Ability
Breaking Ground: Effects of Texture Gradient Disruption on the Visual Perception of Object Reach-Ability Open
View article: Watch your step! Haptic perception of geographic slant corresponds to vision, but results in safer locomotion
Watch your step! Haptic perception of geographic slant corresponds to vision, but results in safer locomotion Open
View article: Correspondence between haptic and visual perception of stand-on-ability: Do hills look as steep as they feel?
Correspondence between haptic and visual perception of stand-on-ability: Do hills look as steep as they feel? Open
Vision and haptics play a central role in perceiving environmental layout to guide action. Hajnal, Wagman, Doyon, and Clark (2016) demonstrated that visual perception of stand-on-ability is accurate compared to action capabilities, whereas…
View article: Are we overthinking it? Haptic perception of geographic slant is accurate when embedded within a secondary task
Are we overthinking it? Haptic perception of geographic slant is accurate when embedded within a secondary task Open
Recent research (Hajnal, Wagman, Bunch, & Doyon, 2014) suggested that geographic slants feel steeper than they look. Visual perception of the stand-on-able-ness of an inclined surface is generally accurate and corresponds to an action boun…