@article{Palmisano:ab,
	abstract = {Sensory conflict, eye-movement, and postural instability theories each have difficulty
accounting for the motion sickness experienced during head-mounted display based
virtual reality (HMD VR). In this paper we review the limitations of existing theories in
explaining cybersickness and propose a practical alternative approach. We start by
providing a clear operational definition of provocative motion stimulation during active
HMD VR. In this situation, whenever the user makes a head movement, his/her virtual
head will tend to trail its true position and orientation due to the display lag (or motion to
photon latency). Importantly, these differences in virtual and physical head pose (DVP)
will vary over time. Based on our own research findings, we propose that cybersickness
in HMD VR is triggered by large magnitude, time-varying patterns of DVP. We then
show how this hypothesis can be tested by: (1) systematically manipulating display lag
magnitudes and head movement speeds across HMD VR conditions; and (2) comparing
the user's estimates of DVP and cybersickness produced in each of these conditions.
We believe that this approach will allow researchers to precisely predict which situations
will (and will not) be provocative for cybersickness in HMD VR.},
	annote = {Citation:
Palmisano S, Allison RS and Kim J
(2020) Cybersickness in
Head-Mounted Displays Is Caused by
Differences in the User's Virtual and
Physical Head Pose.
Front. Virtual Real. 1:587698.
doi: 10.3389/frvir.2020.587698},
	author = {Palmisano, S. and Allison, R. S. and Kim, J.},
	date-added = {2020-10-02 08:41:49 -0400},
	date-modified = {2020-10-23 19:07:21 -0400},
	doi = {10.3389/frvir.2020.587698},
	journal = {Frontiers in Virtual Reality},
	keywords = {Augmented & Virtual Reality},
	pages = {Article 587698},
	title = {Cybersickness in Head-Mounted Displays is Caused by Differences in the User's Virtual and Physical Head Pose},
	volume = {1},
	year = {2020},
	url-1 = {https://doi.org/10.3389/frvir.2020.587698}}

{"_id":"gpQadHeY4rTibJPZC","bibbaseid":"palmisano-allison-kim-cybersicknessinheadmounteddisplaysiscausedbydifferencesintheusersvirtualandphysicalheadpose-2020","author_short":["Palmisano, S.","Allison, R. S.","Kim, J."],"bibdata":{"bibtype":"article","type":"article","abstract":"Sensory conflict, eye-movement, and postural instability theories each have difficulty accounting for the motion sickness experienced during head-mounted display based virtual reality (HMD VR). In this paper we review the limitations of existing theories in explaining cybersickness and propose a practical alternative approach. We start by providing a clear operational definition of provocative motion stimulation during active HMD VR. In this situation, whenever the user makes a head movement, his/her virtual head will tend to trail its true position and orientation due to the display lag (or motion to photon latency). Importantly, these differences in virtual and physical head pose (DVP) will vary over time. Based on our own research findings, we propose that cybersickness in HMD VR is triggered by large magnitude, time-varying patterns of DVP. We then show how this hypothesis can be tested by: (1) systematically manipulating display lag magnitudes and head movement speeds across HMD VR conditions; and (2) comparing the user's estimates of DVP and cybersickness produced in each of these conditions. We believe that this approach will allow researchers to precisely predict which situations will (and will not) be provocative for cybersickness in HMD VR.","annote":"Citation: Palmisano S, Allison RS and Kim J (2020) Cybersickness in Head-Mounted Displays Is Caused by Differences in the User's Virtual and Physical Head Pose. Front. 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In this paper we review the limitations of existing theories in\nexplaining cybersickness and propose a practical alternative approach. We start by\nproviding a clear operational definition of provocative motion stimulation during active\nHMD VR. In this situation, whenever the user makes a head movement, his/her virtual\nhead will tend to trail its true position and orientation due to the display lag (or motion to\nphoton latency). Importantly, these differences in virtual and physical head pose (DVP)\nwill vary over time. Based on our own research findings, we propose that cybersickness\nin HMD VR is triggered by large magnitude, time-varying patterns of DVP. We then\nshow how this hypothesis can be tested by: (1) systematically manipulating display lag\nmagnitudes and head movement speeds across HMD VR conditions; and (2) comparing\nthe user's estimates of DVP and cybersickness produced in each of these conditions.\nWe believe that this approach will allow researchers to precisely predict which situations\nwill (and will not) be provocative for cybersickness in HMD VR.},\n\tannote = {Citation:\nPalmisano S, Allison RS and Kim J\n(2020) Cybersickness in\nHead-Mounted Displays Is Caused by\nDifferences in the User's Virtual and\nPhysical Head Pose.\nFront. Virtual Real. 1:587698.\ndoi: 10.3389/frvir.2020.587698},\n\tauthor = {Palmisano, S. and Allison, R. S. and Kim, J.},\n\tdate-added = {2020-10-02 08:41:49 -0400},\n\tdate-modified = {2020-10-23 19:07:21 -0400},\n\tdoi = {10.3389/frvir.2020.587698},\n\tjournal = {Frontiers in Virtual Reality},\n\tkeywords = {Augmented & Virtual Reality},\n\tpages = {Article 587698},\n\ttitle = {Cybersickness in Head-Mounted Displays is Caused by Differences in the User's Virtual and Physical Head Pose},\n\tvolume = {1},\n\tyear = {2020},\n\turl-1 = {https://doi.org/10.3389/frvir.2020.587698}}\n\n","author_short":["Palmisano, S.","Allison, R. 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