Human manual control performance in hyper-gravity
Hyper-gravity provides a unique environment to study how misperceptions impact control of orientation relative to gravity. Previous studies have found that static and dynamic roll tilts are perceptually overestimated in hyper-gravity. The current investigation quantifies how this influences control...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Springer Berlin Heidelberg
2017
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| Online Access: | http://hdl.handle.net/1721.1/107159 https://orcid.org/0000-0002-9345-9712 https://orcid.org/0000-0002-5576-3510 |
| _version_ | 1811079209047556096 |
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| author | Newman, Michael C. Merfeld, Daniel M. Young, Laurence R. Clark, Torin K. Oman, Charles M. |
| author2 | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics |
| author_facet | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Newman, Michael C. Merfeld, Daniel M. Young, Laurence R. Clark, Torin K. Oman, Charles M. |
| author_sort | Newman, Michael C. |
| collection | MIT |
| description | Hyper-gravity provides a unique environment to study how misperceptions impact control of orientation relative to gravity. Previous studies have found that static and dynamic roll tilts are perceptually overestimated in hyper-gravity. The current investigation quantifies how this influences control of orientation. We utilized a long-radius centrifuge to study manual control performance in hyper-gravity. In the dark, subjects were tasked with nulling out a pseudo-random roll disturbance on the cab of the centrifuge using a rotational hand controller to command their roll rate in order to remain perceptually upright. The task was performed in 1, 1.5, and 2 G’s of net gravito-inertial acceleration. Initial performance, in terms of root-mean-square deviation from upright, degraded in hyper-gravity relative to 1 G performance levels. In 1.5 G, initial performance degraded by 26 % and in 2 G, by 45 %. With practice, however, performance in hyper-gravity improved to near the 1 G performance level over several minutes. Finally, pre-exposure to one hyper-gravity level reduced initial performance decrements in a different, novel, hyper-gravity level. Perceptual overestimation of roll tilts in hyper-gravity leads to manual control performance errors, which are reduced both with practice and with pre-exposure to alternate hyper-gravity stimuli. |
| first_indexed | 2024-09-23T11:11:35Z |
| format | Article |
| id | mit-1721.1/107159 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:11:35Z |
| publishDate | 2017 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1071592022-09-27T17:45:06Z Human manual control performance in hyper-gravity Newman, Michael C. Merfeld, Daniel M. Young, Laurence R. Clark, Torin K. Oman, Charles M. Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Massachusetts Institute of Technology. Clark, Torin K Oman, Charles M Hyper-gravity provides a unique environment to study how misperceptions impact control of orientation relative to gravity. Previous studies have found that static and dynamic roll tilts are perceptually overestimated in hyper-gravity. The current investigation quantifies how this influences control of orientation. We utilized a long-radius centrifuge to study manual control performance in hyper-gravity. In the dark, subjects were tasked with nulling out a pseudo-random roll disturbance on the cab of the centrifuge using a rotational hand controller to command their roll rate in order to remain perceptually upright. The task was performed in 1, 1.5, and 2 G’s of net gravito-inertial acceleration. Initial performance, in terms of root-mean-square deviation from upright, degraded in hyper-gravity relative to 1 G performance levels. In 1.5 G, initial performance degraded by 26 % and in 2 G, by 45 %. With practice, however, performance in hyper-gravity improved to near the 1 G performance level over several minutes. Finally, pre-exposure to one hyper-gravity level reduced initial performance decrements in a different, novel, hyper-gravity level. Perceptual overestimation of roll tilts in hyper-gravity leads to manual control performance errors, which are reduced both with practice and with pre-exposure to alternate hyper-gravity stimuli. National Space Biomedical Research Institute (through NASA NCC9-58 and via National Institute on Deafness and Other Communication Disorders (NIDCD)/National Institutes of Health (NIH) R01 DC04158) 2017-02-24T23:12:23Z 2017-02-24T23:12:23Z 2015-02 2014-11 2016-05-23T12:09:32Z Article http://purl.org/eprint/type/JournalArticle 0014-4819 1432-1106 http://hdl.handle.net/1721.1/107159 Clark, Torin K., Michael C. Newman, Daniel M. Merfeld, Charles M. Oman, and Laurence R. Young. “Human Manual Control Performance in Hyper-Gravity.” Experimental Brain Research 233, no. 5 (February 5, 2015): 1409–1420. https://orcid.org/0000-0002-9345-9712 https://orcid.org/0000-0002-5576-3510 en http://dx.doi.org/10.1007/s00221-015-4215-y Experimental Brain Research Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ Springer-Verlag Berlin Heidelberg application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Newman, Michael C. Merfeld, Daniel M. Young, Laurence R. Clark, Torin K. Oman, Charles M. Human manual control performance in hyper-gravity |
| title | Human manual control performance in hyper-gravity |
| title_full | Human manual control performance in hyper-gravity |
| title_fullStr | Human manual control performance in hyper-gravity |
| title_full_unstemmed | Human manual control performance in hyper-gravity |
| title_short | Human manual control performance in hyper-gravity |
| title_sort | human manual control performance in hyper gravity |
| url | http://hdl.handle.net/1721.1/107159 https://orcid.org/0000-0002-9345-9712 https://orcid.org/0000-0002-5576-3510 |
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