PMID: 6976673Sep 1, 1981Paper

The dysrhythmia and the exponential constants of the postrotatory nystagmus qualities

Acta Oto-laryngologica
P O BörjessonO Pahlm

Abstract

In 5 healthy individuals the postrotatory, exponential constants were estimated for each of the four nystagmus qualities, viz. the velocities and durations of fast and slow components. The residual spread (Sr) of each quality in a semilogarithmic plot was also determined. The value of the constant for postrotatory decay indicated a decrease of the velocity and an increase for the duration of the slow component, both with a significant difference between individuals, while for the corresponding values of the fast components no systematic change in the postrotatory reactions was indicated, nor any difference between individuals. The constant that corresponds to the value at maximum stimulus showed differences between individuals for each of the four nystagmus qualities, while Sr presented differences between individuals only for the two slow phase qualities. This technique to describe postrotatory nystagmus reactions by the two exponential constants for each of the four nystagmus qualities together with the residual spread for each of the qualities is intended for future 'on-line' nystagmus analysis.

References

Jul 1, 1976·Acta Oto-laryngologica·N G HenrikssonA I Dahlen
Jul 1, 1975·Acta Oto-laryngologica·E Anzaldi, E Mira
Dec 1, 1972·Vision Research·S RonA A Skavenski
Sep 1, 1969·Acta Oto-laryngologica·E Fluur, L Mendel
May 1, 1980·Acta Oto-laryngologica·N G HenrikssonC Wennmo
Apr 17, 1953·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·C S HALLPIKE, J D HOOD
Oct 1, 1956·Physics in Medicine and Biology·J J GROEN
Dec 15, 1949·The Journal of Physiology·A A J VAN EGMONDL B W JONGKEES

❮ Previous
Next ❯

Citations

Oct 9, 2002·The Laryngoscope·Leonard R Proctor, Anthony P Lam
Sep 1, 1984·Acta Oto-laryngologica·I PyykköM Juhola

❮ Previous
Next ❯

Related Concepts

Related Feeds

Atrial Fibrillation

Atrial fibrillation is a common arrhythmia that is associated with substantial morbidity and mortality, particularly due to stroke and thromboembolism. Here is the latest research.

Arrhythmia

Arrhythmias are abnormalities in heart rhythms, which can be either too fast or too slow. They can result from abnormalities of the initiation of an impulse or impulse conduction or a combination of both. Here is the latest research on arrhythmias.