Saccadic behavior during the response to pure vergence stimuli

John Semmlow, Claude Pedrono, Tara Alvarez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

If two targets are carefully aligned, the required eye movement will be symmetrical with the two eyes turning equally inward or outward: a pure vergence movement. Yet almost all responses contain saccades, a rapid tandem movement of the eyes. When saccades occur, they must either be producing an error in the desired symmetrical response or correcting an error produced by an asymmetrical vergence response. Results show that in most subjects, error-producing saccades predominate. The symmetry error produced by these saccades is then corrected by either a compensatory asymmetrical vergence, offsetting saccades (including saccadic asymmetry), or a mixture of the two. The compensatory mechanism is subject-dependent with individual subjects favoring one of the three strategies in the majority of their responses. The factors that lead to symmetry errors and subsequent compensatory mechanisms are described, quantified, and discussed.

Original languageEnglish (US)
Title of host publication29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
Pages4854-4857
Number of pages4
DOIs
StatePublished - Dec 1 2007
Event29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07 - Lyon, France
Duration: Aug 23 2007Aug 26 2007

Publication series

NameAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

Other

Other29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
CountryFrance
CityLyon
Period8/23/078/26/07

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Health Informatics
  • Computer Vision and Pattern Recognition
  • Biomedical Engineering

Cite this

Semmlow, J., Pedrono, C., & Alvarez, T. (2007). Saccadic behavior during the response to pure vergence stimuli. In 29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07 (pp. 4854-4857). [4353427] (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings). https://doi.org/10.1109/IEMBS.2007.4353427