 |
|
Electromyography of Human Saccadic Eye Movements
EDWARD TAMLER, M.D.;
ELWIN MARG, Ph.D.;
ARTHUR JAMPOLSKY, M.D.;
ILSE NAWRATZKI, M.D.
AMA Arch Ophthalmol. 1959;62(4):657-661.
|
|
| Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings. |
|
|
|
The purpose of this paper is to report the results of an electromyographic study of saccadic movements (rapid versions) performed during a previously reported study of coactivity of the human extraocular muscles.1 The technique employed has been previously described.2
During a saccadic eye movement in any direction, there is increased electrical activity of all muscles except the one reciprocally inhibited by the required movements. The evidence for this is as follows:
In Figure 1, the arrows from above indicate the start of horizontal saccades, the first to the left, the second to the right. During each saccade, there is increased electrical activity in both vertical recti, suggesting cocontraction. The agonist during the first saccade (right medial rectus) manifests increased activity. After the saccade the activity of each of the muscles returns to the level required by the final position of the eye. The first muscle channel (right lateral
. . . [Full Text PDF of this Article]
Author Affiliations
San Francisco; Jerusalem
From the Division of Ophthalmology, Department of Surgery, Stanford University School of Medicine, San Francisco (Drs. Tamler and Jampolsky). School of Optometry, University of California, Berkeley, Calif. (Dr. Marg). Hebrew University Hospital (Dr. Nawratzki).
Footnotes
Submitted for publication March 24, 1959.
This study was supported by funds made available by U. S. Public Health Service Grant B-686 and Office of Naval Research Contract 225 (20).
 CiteULike  Connotea  Del.icio.us  Digg  Reddit  Technorati  Twitter
What's this?
|
