NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A new light on caloric test--what was disclosed by three dimensional analysis of caloric nystagmus?For better understanding of caloric nystagmus, this phenomenon will be reviewed historically in three stages. 1) The first light on caloric nystagmus was thrown by Barany 1906. Through direct observation of eye movements, Barany established the caloric test as an important tool to determine the side of lesion for vertigo. 2) The second light is shed by electrooculogram (EOG) from the late 1950th. EOG enabled qualitative analysis of caloric nystagmus, and proved Barany's convection theory, but resulted in neglect of vertical and roll eye movements. 3) The third light is gained by 3D recording of eye movements started from the late 1980th. 3D recordings of eye movements enabled us to analyze the spatial orientation of caloric nystagmus, and disclose the close correlation of the nystagmus components in the head vertical and the space vertical planes, suggesting a contribution of the velocity storage integrator. The 3D property of caloric nystagmus will be explained in detail.
Document ID
20040109418
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Arai, Y.
(Tokyo Women's Medical University Daini Hospital Tokyo, Japan)
Date Acquired
August 21, 2013
Publication Date
December 1, 2001
Publication Information
Publication: Uchu seibutsu kagaku
Volume: 15
Issue: 4
ISSN: 0914-9201
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available