Perceiving slant about a horizontal axis from stereopsis.

  title={Perceiving slant about a horizontal axis from stereopsis.},
  author={Martin S. Banks and Ignace Th.C. Hooge and B. T. Backus},
  journal={Journal of vision},
  volume={1 2},
Rotating a surface about a horizontal axis alters the retinal horizontal-shear disparities. Opposed torsional eye movements (cyclovergence) also change horizontal shear. If there were no compensation for the horizontal disparities created by cyclovergence, slant estimates would be erroneous. We asked whether compensation for cyclovergence occurs, and, if it does, whether it occurs by use of an extraretinal cyclovergence signal, by use of vertical-shear disparities, or by use of both signals. In… CONTINUE READING