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  Spectral sensitivity of stare nystagmus and smooth pursuit

von Campenhausen, M., & Kirschfeld, K. (1998). Spectral sensitivity of stare nystagmus and smooth pursuit. Poster presented at 1. Tübinger Wahrnehmungskonferenz (TWK 1998), Tübingen, Germany.

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 Creators:
von Campenhausen, M1, 2, Author              
Kirschfeld, K1, 2, Author              
Affiliations:
1Former Department Comparative Neurobiology, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497800              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: The visual system consists of several subsystems, which perform their task nearly independently of each other. One is the accessory-optic system, performing the gaze stabilisation by eye-nystagmus. In humans two kinds of nystagmus can be discriminated: stare nystagmus and look nystagmus (smooth pursuit). The best known example for stare nystagmus can be seen on a train journey. The vis-à-vis -staring out of the window- moves his eyes nystagmic. Without fixating any single object the eyes run over the landscape, most of the time following and bouncing back every now and then. In contrast, during look nystagmus single objects are fixated and pursued. Stare nystagmus is driven by the accessory-optic system, a set of subcortical nuclei, while cortical structures contribute to the look nystagmus. In order to find out which cones contribute to both kinds of nystagmus, we measured their spectral sensitivity. Two different instructions were given to the observers, leading to either stare or look nystagmus, respectively. Spectral sensitivity turned out to be different for look and stare nystagmus. Spectral sensitivity of stare nystagmus corresponds basically to the V(l)-function, indicating that there is no or only a minor contribution of the short wavelength cones. Look nystagmus has a higher sensitivity at short wavelengths, demonstrating a contribution of short wavelength cones.

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 Dates: 1998-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: BibTex Citekey: 271
 Degree: -

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Title: 1. Tübinger Wahrnehmungskonferenz (TWK 1998)
Place of Event: Tübingen, Germany
Start-/End Date: 1998-02-27 - 1998-03-01

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Title: Visuelle Wahrnehmung: Beiträge zur 1. Tübinger Wahrnehmungskonferenz
Source Genre: Proceedings
 Creator(s):
Bülthoff, HH1, Editor            
Fahle, M, Editor            
Gegenfurtner, KR1, Editor            
Mallot, HA1, Editor            
Affiliations:
1 Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794            
Publ. Info: Kirchentellinsfurt, Germany : Knirsch
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 137 Identifier: ISBN: 3-927091-40-5