Virtual Reality-Based Random Dot Kinematogram  

作　　者：Jun Ma Hyo-Jung Kim Ji-Soo Kim Eek-Sung Lee Min Hong 

机构地区：[1]Department of Software Convergence,Soonchunhyang University,Asan,31538,Korea [2]Research Administration Team,Seoul National University Bundang Hospital,Seongnam,13620,Korea [3]Dizziness Center,Clinical Neuroscience Center,Department of Neurology,Seoul National University Bundang Hospital,Seongnam,13620,Korea [4]Department of Neurology,Seoul National University College of Medicine,Seoul,03080,Korea [5]Department of Neurology,College of Medicine,Soonchunhyang University,Bucheon,14584,Korea [6]Department of Computer Software Engineering,Soonchunhyang University,Asan,31538,Korea

出　　处：《Computers, Materials & Continua》2021年第9期4205-4213,共9页计算机、材料和连续体（英文）

基　　金：This work was supported by the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(Nos.2019R1F1A1062752 and 2019R1C1C1006539)and was supported by the Soonchunhyang University Research Fund.

摘　　要：This research implements a random dot kinematogram(RDK)using virtual reality(VR)and analyzes the results based on normal subjects.Visual motion perception is one of visual functions localized to a specific cortical area,the human motion perception area(human analogue for the middle temporal/middle superior temporal area)located in the parieto–occipito–temporal junction of the human brain.The RDK measures visual motion perception capabilities.The stimuli in conventional RDK methods are presented using a monitor screen,so these devices require a spacious dark room for installation and use.Recently,VR technology has been implemented in different medical domains.The test method proposed in this study include a VR-based RDK that can independently measure human motion perception abilities without any spatial constraints via a VR head-mounted display.Subsequently,the VR-based RDK was implemented,and the visual perception abilities of the normal subjects were measured based on varying coherences.In both screen-and VR-based RDK tests,the easier the stimulus is,the higher the correct answer rate and the shorter the reaction time.No significant differences in coherence thresholds were observed between the two test methods.The VRbased RDK proposed in this study can be used as a diagnosis tool for visual motion perception and neurodegenerative disorders affecting the posterior region of the brain.

关 键 词：Random dot kinematogram virtual reality visual psychophysics diagnostic device 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]