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{{Short description|Eyewear that inverts the wearer's view}}
[[File:Upside down goggles.png|alt=upside down goggles|thumb|wide angle modern upside down goggles (147°x68° field of view) ]]
[[File:Upside down goggles.png|alt=upside down goggles|thumb|Modern wide angle upside down goggles (147° x 68° field of view) ]]
'''Upside down goggles''', also known as "invertoscope" by Russian researchers,<ref>{{Cite book|title=Perception under the conditions of inversion of the visual field. Dissertation|last=Logvinenko|first=A.D.|publisher=MSU|year=1974|isbn=|location=Russia|pages=5-67}}</ref> are an optical instrument that inverts the image received by the retinas upside down. It is used to study human [[visual perception]], particularly psychological process of building a visual image in the brain. Objects viewed through the device appear upside down and mirrored. They are constructed using sets of optical right-angle prisms, [[Dove prism]]s, or a mirror plus right-angle prisms with unequal catetus.
'''Upside down goggles''', also known as "invertoscopes" by Russian researchers,<ref>{{Cite book|title=Perception under the conditions of inversion of the visual field. Dissertation|last=Logvinenko|first=A.D.|publisher=MSU|year=1974|location=Russia|pages=5–67}}</ref> are optical instruments that invert the image received by the retinas upside down. They are used to study human [[visual perception]], particularly psychological process of building a visual image in the brain. Objects viewed through such a device appear upside down and mirrored. They are constructed using sets of optical right-angle prisms, [[Dove prism|concave mirrors]], or a mirror plus right-angle prisms with unequal cathethus.


== Purpose ==
== Purpose ==
Upside down goggles can be used to demonstrate human adaptation to inverted vision, and as a method of preventing motion sickness.<ref>{{Cite web|url=http://main.sportedu.ru/sites/all/modules/gdv/gdv.php?url=http://www.extreme-edu.ru/sites/extreme-edu.ru/files/book_02_2017.pdf|title=Vestibulo-ocular stage of human adaptation to inversion or reversion of the field of view as method of preventing motion sickness. pp 64|last=Khotinskiy|first=D.A.|date=2017|website=|archive-url=http://www.extreme-edu.ru/sites/extreme-edu.ru/files/book_02_2017.pdf|archive-date=2017|dead-url=|access-date=}}</ref> Hubert Dolezal recommended to use upside down goggles for "nausea adaptation" for space travel.<ref>{{Cite book|title=Living in a World Transformed|last=Hubert|first=Dolezal|publisher=Departament of Psychology Northeastern Illinois Universiity Chicago|year=1982|isbn=978-1-932846-02-7|location=Chicago Illinois|pages=314}}</ref>
Upside down goggles can be used to demonstrate human adaptation to inverted vision, and as a method of preventing motion sickness.<ref>{{Cite web|url=http://main.sportedu.ru/sites/all/modules/gdv/gdv.php?url=http://www.extreme-edu.ru/sites/extreme-edu.ru/files/book_02_2017.pdf|title=Vestibulo-ocular stage of human adaptation to inversion or reversion of the field of view as method of preventing motion sickness. pp 64|last=Khotinskiy|first=D.A.|date=2017|archive-url=https://web.archive.org/web/20191130051331/http://main.sportedu.ru/sites/all/modules/gdv/gdv.php?url=http://www.extreme-edu.ru/sites/extreme-edu.ru/files/book_02_2017.pdf|archive-date=November 30, 2019}} [http://www.extreme-edu.ru/sites/extreme-edu.ru/files/book_02_2017.pdf Alt URL]</ref> Hubert Dolezal recommended using upside down goggles for "nausea adaptation" for space travel.<ref>{{Cite book|title=Living in a World Transformed|last=Hubert|first=Dolezal|publisher=Department of Psychology Northeastern Illinois University Chicago|year=1982|isbn=978-1-932846-02-7|location=Chicago Illinois|pages=314}}</ref>


They can also be used to train spatial abilities and possibly cognitive functions.<ref group="Patents of devices">Patent  RU2008802 "Trainig of spatial abilities of human"</ref>
They can also be used to train spatial abilities and possibly cognitive functions.<ref group="Patents of devices">Patent&nbsp; RU2008802 "Training of spatial abilities of human"</ref>


== Effect ==
== Effect ==
[[File:Blinking in Upside Down Goggles.gif|alt=man blinking in Upside Down Goggles|thumb|How human blinking looks in upside down goggles]]
[[File:Blinking in Upside Down Goggles.gif|alt=man blinking in Upside Down Goggles|thumb|How a human looks blinking in upside down goggles]]
Under normal circumstances, an inverted image is formed on the [[retina]] of the eye. With the help of upside down goggles, the image on the retina of the observer's eyes is turned back (straightened) and thus the space around the observer looks upside down.<ref>{{Cite journal|last=Logvinenko|first=A.D.|date=1974|title=Adaptation to inverting vision|url=http://www.voppsy.ru/issues/1980/806/806097.htm|journal=Questions of psychology|volume=12|pages=101|via=}}</ref>
Under normal circumstances, an inverted image is formed on the [[retina]] of the eye. With the help of upside down goggles, the image on the retina of the observer's eyes is turned back (straightened) and thus the space around the observer looks upside down.<ref>{{Cite journal|last=Logvinenko|first=A.D.|date=1974|title=Adaptation to inverting vision|url=http://www.voppsy.ru/issues/1980/806/806097.htm|journal=Questions of Psychology|volume=12|pages=101}}</ref>


== History ==
== History ==
[[George M. Stratton]] designed first upside down goggles for [[psychological experiment]]. His device used short-focus lenses. Stratton used a one-tubus, monocular device because this also reverses left and right and he wished to set up an experiment without distortion of depth perception.<ref>{{Cite journal|last=Stratton|first=George|date=1896|title=Some preliminary experiments on vision without inversion of the retinal image|url=http://psycnet.apa.org/record/1926-02862-001|journal=APA PsycNET|volume=|pages=1|via=}}</ref>
[[George M. Stratton]] designed the first upside down goggles for a [[psychological experiment]]. His device used short-focus lenses. Stratton used a one-tube, monocular device because this also reverses left and right and he wished to set up an experiment without distortion of depth perception.<ref>{{Cite journal|last=Stratton|first=George|date=1896|title=Some preliminary experiments on vision without inversion of the retinal image|url=http://psycnet.apa.org/record/1926-02862-001|journal=APA PsycNET|pages=1}}</ref>


In 1931 Theodor Erismann and Ivo Kohler conducted a series of experiments using mirror-prismatic upside down goggles employing only one mirror.<ref>{{Cite web|url=https://www.ncbi.nlm.nih.gov/pubmed/28521154|title="The world is upside down" - The Innsbruck Goggle Experiments of Theodor Erismann (1883-1961) and Ivo Kohler (1915-1985).|last=|first=|date=|website=|archive-url=|archive-date=|dead-url=|access-date=}}</ref>
In 1931 Theodor Erismann and Ivo Kohler conducted a series of experiments using mirror-prismatic upside down goggles employing only one mirror.<ref>{{Cite journal|title="The world is upside down" - The Innsbruck Goggle Experiments of Theodor Erismann (1883-1961) and Ivo Kohler (1915-1985).|journal=Cortex; A Journal Devoted to the Study of the Nervous System and Behavior|volume=92|pages=222–232|pmid = 28521154|year = 2017|last1 = Sachse|first1 = P.|last2=Beermann|first2=U.|last3=Martini|first3=M.|last4=Maran|first4=T.|last5=Domeier|first5=M.|last6=Furtner|first6=M. R.|doi=10.1016/j.cortex.2017.04.014|s2cid=4636264}}</ref>


After long term experiments since 1984 in 1991 Hubert Dolezal got US patent for comfortable light weight upside down goggles.<ref group="Patents of devices">US Patent 5,042,910 "Prismatic image transposing optical system"</ref>
After experimenting since 1984, in 1991 Hubert Dolezal procured a US patent for comfortable light weight upside down goggles.<ref group="Patents of devices">US Patent 5,042,910 "Prismatic image transposing optical system"</ref>

Modern upside down goggles consist of two prisms fixed onto a comfortable ski mask-like base.


==Notes==
==Notes==
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== External links ==
== External links ==
* [http://en.invertos.com/perception How it looks for childhood perception]
* [http://en.invertos.com/perception How it looks for childhood perception]

{{Stereoscopy|state=expanded}}
{{Stereoscopy}}
{{Eyewear}}


[[Category:Visual perception]]
[[Category:Visual perception]]
[[Category:Optical instruments]]
[[Category:Optical instruments]]
{{improve categories|date=November 2018}}

Latest revision as of 01:54, 26 December 2022

upside down goggles
Modern wide angle upside down goggles (147° x 68° field of view)

Upside down goggles, also known as "invertoscopes" by Russian researchers,[1] are optical instruments that invert the image received by the retinas upside down. They are used to study human visual perception, particularly psychological process of building a visual image in the brain. Objects viewed through such a device appear upside down and mirrored. They are constructed using sets of optical right-angle prisms, concave mirrors, or a mirror plus right-angle prisms with unequal cathethus.

Purpose

[edit]

Upside down goggles can be used to demonstrate human adaptation to inverted vision, and as a method of preventing motion sickness.[2] Hubert Dolezal recommended using upside down goggles for "nausea adaptation" for space travel.[3]

They can also be used to train spatial abilities and possibly cognitive functions.[Patents of devices 1]

Effect

[edit]
man blinking in Upside Down Goggles
How a human looks blinking in upside down goggles

Under normal circumstances, an inverted image is formed on the retina of the eye. With the help of upside down goggles, the image on the retina of the observer's eyes is turned back (straightened) and thus the space around the observer looks upside down.[4]

History

[edit]

George M. Stratton designed the first upside down goggles for a psychological experiment. His device used short-focus lenses. Stratton used a one-tube, monocular device because this also reverses left and right and he wished to set up an experiment without distortion of depth perception.[5]

In 1931 Theodor Erismann and Ivo Kohler conducted a series of experiments using mirror-prismatic upside down goggles employing only one mirror.[6]

After experimenting since 1984, in 1991 Hubert Dolezal procured a US patent for comfortable light weight upside down goggles.[Patents of devices 2]

Modern upside down goggles consist of two prisms fixed onto a comfortable ski mask-like base.

Notes

[edit]
  1. ^ Patent  RU2008802 "Training of spatial abilities of human"
  2. ^ US Patent 5,042,910 "Prismatic image transposing optical system"

References

[edit]
  1. ^ Logvinenko, A.D. (1974). Perception under the conditions of inversion of the visual field. Dissertation. Russia: MSU. pp. 5–67.
  2. ^ Khotinskiy, D.A. (2017). "Vestibulo-ocular stage of human adaptation to inversion or reversion of the field of view as method of preventing motion sickness. pp 64" (PDF). Archived from the original (PDF) on November 30, 2019. Alt URL
  3. ^ Hubert, Dolezal (1982). Living in a World Transformed. Chicago Illinois: Department of Psychology Northeastern Illinois University Chicago. p. 314. ISBN 978-1-932846-02-7.
  4. ^ Logvinenko, A.D. (1974). "Adaptation to inverting vision". Questions of Psychology. 12: 101.
  5. ^ Stratton, George (1896). "Some preliminary experiments on vision without inversion of the retinal image". APA PsycNET: 1.
  6. ^ Sachse, P.; Beermann, U.; Martini, M.; Maran, T.; Domeier, M.; Furtner, M. R. (2017). ""The world is upside down" - The Innsbruck Goggle Experiments of Theodor Erismann (1883-1961) and Ivo Kohler (1915-1985)". Cortex; A Journal Devoted to the Study of the Nervous System and Behavior. 92: 222–232. doi:10.1016/j.cortex.2017.04.014. PMID 28521154. S2CID 4636264.
[edit]