{"_id":"eXyenJD5XoRvzBPFv","bibbaseid":"keyvanara-allison-viewerssensitivitytocameramotionduringsaccadesinavirtualenvironment-2019","authorIDs":["5e596c1656d60ade0100014f","vnY8GQ5AKXHNi7dqd"],"author_short":["Keyvanara, M.","Allison, R."],"bibdata":{"bibtype":"incollection","type":"incollection","abstract":"Gaze-contingent displays use real-time eye movement data to adjust the display content according to user's gaze. Display updates must happen fast enough to prevent the user from noticing them. Saccadic suppression helps hide these updates. The aim of this study was to investigate which image transformations are less perceptible and hence more applicable during saccadic suppression periods. We designed our experimental environments in Unity3D and used an Eyelink1000 to sample the participants' gaze in real time. Participants viewed 3D scenes in which the camera panned from left to right at a constant rotational velocity. During this motion they made a horizontal (lrightward) or vertical (downward) saccade during which a sudden movement of the camera transformed the image of the scene. Camera movements were one of 6 translation and 4 rotational directions. Following the trial participants indicated the direction of the change in a 2AFC task. Discrimination thresholds for each type of transformation were estimated using an adaptive procedure to fit a Weibull psychometric function. During both horizontal and vertical saccades, thresholds were higher for horizontal translational and rotational camera movements than for other transformations. Further experiments are being conducted to determine if this generalizes but the current results imply that the direction of camera motion affects the detectability of camera transitions during saccades. Understanding the relationship between on-going movements and the detectability of a sudden transsaccadic change can help provide a better user experience for users of VR that hide graphical updates when they generate a saccade.","annote":"18-22 August 2019 Alicante Spain","author":[{"propositions":[],"lastnames":["Keyvanara"],"firstnames":["Maryam"],"suffixes":[]},{"propositions":[],"lastnames":["Allison"],"firstnames":["Robert"],"suffixes":[]}],"booktitle":"Proceedings of 20th European Conference on Eye Movements. Journal of Eye Movement Research","date-added":"2019-08-14 08:42:45 -0400","date-modified":"2019-12-25 22:28:04 -0500","journal":"Journal of Eye Movement Research","keywords":"Eye Movements & Tracking","number":"7","pages":"214","title":"Viewers' Sensitivity to Camera Motion during Saccades in a Virtual Environment","url-1":"https://doi.org/10.1177/0301006618824879","volume":"12","year":"2019","bibtex":"@incollection{Keyvanara:2019rf,\n\tabstract = {Gaze-contingent displays use real-time eye movement data to adjust the display content according to user's\ngaze. Display updates must happen fast enough to prevent the user from noticing them. Saccadic suppression\nhelps hide these updates. The aim of this study was to investigate which image transformations are less\nperceptible and hence more applicable during saccadic suppression periods. We designed our experimental\nenvironments in Unity3D and used an Eyelink1000 to sample the participants' gaze in real time. Participants\nviewed 3D scenes in which the camera panned from left to right at a constant rotational velocity. During this\nmotion they made a horizontal (lrightward) or vertical (downward) saccade during which a sudden movement\nof the camera transformed the image of the scene. Camera movements were one of 6 translation and 4\nrotational directions. Following the trial participants indicated the direction of the change in a 2AFC task.\nDiscrimination thresholds for each type of transformation were estimated using an adaptive procedure to\nfit a Weibull psychometric function. During both horizontal and vertical saccades, thresholds were higher for\nhorizontal translational and rotational camera movements than for other transformations. Further experiments\nare being conducted to determine if this generalizes but the current results imply that the direction of camera\nmotion affects the detectability of camera transitions during saccades. Understanding the relationship\nbetween on-going movements and the detectability of a sudden transsaccadic change can help provide a\nbetter user experience for users of VR that hide graphical updates when they generate a saccade.},\n\tannote = {18-22 August 2019 Alicante Spain},\n\tauthor = {Keyvanara, Maryam and Allison, Robert},\n\tbooktitle = {Proceedings of 20th European Conference on Eye Movements. Journal of Eye Movement Research},\n\tdate-added = {2019-08-14 08:42:45 -0400},\n\tdate-modified = {2019-12-25 22:28:04 -0500},\n\tjournal = {Journal of Eye Movement Research},\n\tkeywords = {Eye Movements & Tracking},\n\tnumber = {7},\n\tpages = {214},\n\ttitle = {Viewers' Sensitivity to Camera Motion during Saccades in a Virtual Environment},\n\turl-1 = {https://doi.org/10.1177/0301006618824879},\n\tvolume = {12},\n\tyear = {2019}}\n\n\n\n","author_short":["Keyvanara, M.","Allison, R."],"key":"Keyvanara:2019rf","id":"Keyvanara:2019rf","bibbaseid":"keyvanara-allison-viewerssensitivitytocameramotionduringsaccadesinavirtualenvironment-2019","role":"author","urls":{"-1":"https://doi.org/10.1177/0301006618824879"},"keyword":["Eye Movements & Tracking"],"metadata":{"authorlinks":{"allison, r":"https://percept.eecs.yorku.ca/bibase%20pubs.shtml"}},"downloads":0},"bibtype":"incollection","biburl":"https://bibbase.org/network/files/ibWG96BS4w7ibooE9","creationDate":"2020-02-28T19:44:05.539Z","downloads":0,"keywords":["eye movements & tracking"],"search_terms":["viewers","sensitivity","camera","motion","during","saccades","virtual","environment","keyvanara","allison"],"title":"Viewers' Sensitivity to Camera Motion during Saccades in a Virtual Environment","year":2019,"dataSources":["kmmXSosvtyJQxBtzs","BPKPSXjrbMGteC59J","MpMK4SvZzj5Fww5vJ","YbBWRH5Fc7xRr8ghk","szZaibkmSiiQBFQG8","DoyrDTpJ7HHCtki3q","JaoxzeTFRfvwgLoCW","XKwRm5Lx8Z9bzSzaP","AELuRZBpnp7nRDaqw"]}