Vergence eye movements allow humans to view images in depth by turning the eyes inward (convergence) or outward (divergence). Four subjects were studied and tracked four degree disparity steps at different initial positions. This study shows that convergence and divergence dynamics differ depending on initial vergence position. The velocity of divergence increases for initially near targets, while convergence responses are similar irrespective of the initial position. It is speculated that the difference observed in divergence is a result of difference in magnitude of the fusion initiating component (transient component). Preliminary data using independent component analysis (ICA) shows the divergence system contains a step (sustained) component and pulse (transient) component where the amplitude of the pulse is dependent on the initial stimulus position.
|Original language||English (US)|
|Number of pages||3|
|Journal||Bioengineering, Proceedings of the Northeast Conference|
|State||Published - Dec 12 2005|
|Event||Proceedings of the 2005 IEEE 31st Annual Northeast Bioengineering Conference - Hoboken, NJ, United States|
Duration: Apr 2 2005 → Apr 3 2005
All Science Journal Classification (ASJC) codes