Centre for Vision Research
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Item Open Access Speaker and Poster Abstracts, CVR Conference 2013(2013-06-26) Harris, LaurenceWe are very pleased to welcome you to the 2013 CVR conference at York University at which we will celebrate the research careers of two esteemed CVR members, Drs. Hugh Wilson and Marty Steinbach. We have a stellar line up of speakers along with many interesting poster presentations.Item Open Access Speaker and Poster Abstracts, CVR Conference 2015(Centre for Vision Research, York University, 2015-06-23) Elder, JamesA principal challenge for both human and machine vision systems is to integrate and organize the diversity of cues received from the environment into the coherent global representations required to make good decisions and take effective actions. This conference brings together an interdisciplinary roster of leading researchers in both biological and computer vision to report and discuss the latest research on this process of perceptual organization.Item Open Access Speaker and Poster Abstracts, CVR Conference 2017(Centre for Vision Research, York University, 2017-06-13) Harris, LaurenceItem Open Access Speaker and Poster Abstracts, CVR Conference 2019(Centre for Vision Research, York University, 2019-06-10) Cavanagh, PatrickWelcome to the 2019 Centre for Vision Research and VISTA biennial conference. We are excited to hear from our outstanding list of invited speakers. Let me tell you a little about the Centre here at York University. We are an interdisciplinary, diverse and highly interactive group of thirty six vision scientists along with their trainees who approach vision science from many converging points of view. The group has deep roots going back to the founding influence of Ian Howard in the 1960’s. Our members are drawn from departments of Kinesiology, Biology, Psychology, Computer Science, Physics, Philosophy and Digital Media and our research ranges from basic science through to human performance, engineering and clinical applications. We hope you will have a chance to meet many of us during your visit and visit some of our labs. The topic of predictive vision was selected as embracing, and being consequential to, virtually all approaches to vision-hopefully this conference will give us all something to consider concerning our particular topics of interest, and perhaps make us all look a little differently at visual processes.Item Open Access Speaker and Poster Abstracts, CVR Conference 2022(Centre for Vision Research, York University, 2022-06-06) Troje, NikolausThe CVR conference 2022 connects the long history of picture perception with new display technologies that blur the differences between pictorial representations and the reality of the world that they attempt to depict. Controlled, principled visual stimulation is at the core of vision research. Techniques have evolved from painted or printed material, to computer screens that provide control and enable rapid changes of graphical contents that soon included moving pictures and stereoscopic displays, and further to today's high-fidelity VR/AR systems and the prospect of holographic displays. Picture perception is interesting for two reasons. On the one hand, the ability to abstract the depicted contents from the physical object of the medium, as humans do, is a trait that only few other animals are capable of. There is a rich tradition within vision science that focusses on picture perception and connects vision research with arts history, the philosophy of perception, and cognitive science. On the other hand, vision research has often used pictorial displays with the implicit assumption that they provide a valid surrogate for the visual stimulation experience in normal life. Consequently, the results obtained in the lab are expected to generalize into the real world. More recently, however, researchers began to challenge this assumption and started to compare picture perception and vision in the real world explicitly. Virtual reality, augmented reality, and the prospect of light-field-based holographic displays provide excellent tools to that end. The defining feature, namely the ability to update the stereoscopic displays contingent with the user’s movement, is more than an incremental increase in representational fidelity. It transports passive observers who look at pictorial space into active agents that become part of that space. It establishes visual presence and employs the user's visual system in ways much more similar to the ones in which we process the “real” visual environment. An industry exhibition during the meeting will showcase exciting new developments in display techniques and their applications. The topic of CVR 2022 lends itself to celebrate the achievements of CVR’s former director, Laurence Harris and recognize his decade of leadership of the centre. Reality constitutes itself in terms of consistencies between sensory modalities and the predictability of sensory stimulation in response to movement. Harris, while working on multisensory integration, space perception and self-perception in space, pioneered the emancipation from the picture domain. He started to work with real world stimuli, he adopted virtual reality for vision research long before others did, and he sends his participants into orbit to manipulate their sensory environment in ways that would not be possible anywhere on earth.Item Open Access Oculomotor system can differentially process red and green colors during saccade programming in the presence of a competing distractor(Experimental Brain Research, 2022-09-13) Ramezanpour, Hamidreza; Blizzard, Shawn; Kehoe, Devin; Fallah, MazyarSelective attention filters irrelevant information entering our brain to allow for fine-tuning of the relevant information processing. In the visual domain, shifts of attention are most often followed by a saccadic eye movement to objects and places of high relevance. Recent studies have shown that the stimulus color can affect saccade target selection and saccade trajectories. While those saccade modulations are based on perceptual color space, the level in the visual processing hierarchy at which color selection biases saccade programming remains unclear. As color has also been shown to influence manual response inhibition which is a key function of the prefrontal cortex, we hypothesized that the effects of color on executive functions would also inherently affect saccade programming. To test this hypothesis, we measured behavioral performance and saccade metrics during a modified saccadic Stroop task which reflects competition between color words (“RED” and “GREEN”) and their color at the level of the prefrontal cortex. Our results revealed that the oculomotor system can differentially process red and green colors when planning a saccade in the presence of a competing distractor.Item Open Access Speaker and Poster Abstracts, CVR Conference 2023(2023) Allison, RobWelcome to the 2023 Centre for Vision Research (CVR) international conference, ‘The New Vistas in Vision Research’! Opening and closing talks from Rick Wildes and Doug Crawford, who were Associate Director and Director of Vision: Science to Applications (VISTA) through most of the program, will set the tone for the conference and position the VISTA program in the context of the broader vision science community. The conference scientific program and the oral sessions over the next four days will cover many aspects of vision science with a focus on the link between basic science and its ability to transform everyday life. Three poster sessions will expand on these topics and showcase diverse research in all areas of vision science.