Visual stabilization dynamics are enhanced by standing flight velocity Article

Theobald, JC, Ringach, DL, Frye, MA. (2010). Visual stabilization dynamics are enhanced by standing flight velocity . BIOLOGY LETTERS, 6(3), 410-413. 10.1098/rsbl.2009.0845

cited authors

  • Theobald, JC; Ringach, DL; Frye, MA

authors

abstract

  • A flying insect must travel to find food,mates and sites for oviposition, but for a small animal in a turbulent world this means dealing with frequent unplanned deviations from course. We measured a fly's sensory-motor impulse response to perturbations in optic flow. After an abrupt change in its apparent visual position, a fly generates a compensatory dynamical steering response in the opposite direction. The response dynamics, however, may be influenced by superimposed background velocity generated by the animal's flight direction. Here we show that constant forward velocity has no effect on the steering responses to orthogonal sideslip perturbations, whereas constant parallel sideslip substantially shortens the lags and relaxation times of the linear dynamical responses. This implies that for flies stabilizing in sideslip, the control effort is strongly affected by the direction of background motion. © 2009 The Royal Society.

publication date

  • June 23, 2010

published in

Digital Object Identifier (DOI)

start page

  • 410

end page

  • 413

volume

  • 6

issue

  • 3