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Bárány chair

By Wikipedia,
the free encyclopedia,

https://en.wikipedia.org/wiki/B%C3%A1r%C3%A1ny_chair

 

The Barany chair or Bárány chair, named for the Hungarian physiologist Robert Bárány, is a device used for aerospace physiology training, particularly for student pilots.

Bárány chair
A test person is sitting in a swivel chair. A second person has just stopped the rotation of the chair. The disoriented test person points at a sign held up by a third person.

Air Force personnel demonstrating the effect on the sensory perception and spacial orientation of a test person in a Bárány chair. After first having been rotated in the chair and then stopped, the test person tries to point at a test board.
ICD-9-CM 95.45

Test

The subject is placed in the chair, blindfolded, then spun about the vertical axis while keeping his head upright or tilted forward or to the side. The subject is then asked to perform tasks such as determine his direction of rotation while blindfolded, or rapidly change the orientation of his head, or attempt to point at a stationary object without blindfold after the chair is stopped. The chair is used to demonstrate spatial disorientation effects, proving that the vestibular system is not to be trusted in flight. Pilots are taught that they should instead rely on their flight instruments.

Uses

The device is also used in motion sickness therapy.

Nobel Prize

Bárány used this device in his research into the role of the inner ear in the sense of balance, for which he won the 1914 Nobel prize in Physiology or Medicine.


Text from Wikipedia is available under the Creative Commons Attribution/Share-Alike License; additional terms may apply.


Published in April 2019.












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