Open AccessJournal Article
Perception of the visual horizontal in normal and labyrinthine defective subjects during prolonged rotation
Brant Clark,Ashton Graybiel +1 more
TLDR
In this article, five normal and nine labyrinthine defective men were studied in a slow rotation room, which produced a change in resultant force of 20 degrees on them, and at one minute intervals set a luminous line to the perceived horizontal in darkness for one hour.Abstract:
: Five normal and nine labyrinthine defective men were studied in a Slow Rotation Room which produced a change in resultant force of 20 degrees on them The men faced in the direction of rotation and at one minute intervals set a luminous line to the perceived horizontal in darkness for one hour The results for the normal men confirmed an earlier study showing no systematic change in the perception of the visual horizontal after an initial lag effect In contrast, the labyrinthine defective men showed a smaller, rapid, and then a gradual change in the perception of the visual horizontal throughout the one hour of constant rotation At the end of one hour there was no significant difference between the two groups These results are discussed in terms of a differential weighting of the synergistic information available to the two groups (Author)read more
Citations
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References
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Journal ArticleDOI
Observations on human subjects living in a "slow rotation room" for periods of two days.
TL;DR: A new stressful procedure and the constellation of symptoms manifested by persons subjected to this stress, which consists essentially of carrying out activities in a slowly rotating room, has additional usefulness as a means of investigating certain aspects of the brain stem-activating system.
Journal ArticleDOI
The Delay in Visual Reorientation following Exposure to a Change in Direction of Resultant Force on a Human Centrifuge
Ashton Graybiel,Robert H. Brown +1 more
TL;DR: In this article, three subjects were exposed on a human centrifuge to a change in direction of resultant force relative to the body axis, and a marked discrepancy was noted between the time required to impress the physical force on the subject and the period during which he found it necessary to make adjustments in keeping the line horizontal.
Journal ArticleDOI
Excitation and changes in adaptation by stretch of mechanoreceptors.
TL;DR: It was found that adaptation of the touch receptor is inifluenced in a marked degree by stretch, so that the ordinarily fast-adapting touch receptor when fully stretched presents a non- adaptinging stationary discharge like a stretch receptor.
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Perception of the Visual Horizontal in Normal and Labyrinthine Defective Observers during Prolonged Rotation
Brant Clark,Ashton Graybiel +1 more