The dominant role of visual motion cues in bumblebee flight control revealed through virtual reality.

Frasnelli, Elisa and Hempel de Ibarra, Natalie and Stewart, Finlay J (2018) The dominant role of visual motion cues in bumblebee flight control revealed through virtual reality. Frontiers in Physiology . ISSN 1664-042X

Full content URL: https://www.frontiersin.org/articles/10.3389/fphys...

Documents
The dominant role of visual motion cues in bumblebee flight control revealed through virtual reality
[img]
[Download]
[img]
Preview
PDF
fphys-09-01038.pdf - Whole Document
Available under License Creative Commons Attribution 4.0 International.

1MB
Item Type:Article
Item Status:Live Archive

Abstract

Flying bees make extensive use of optic flow: the apparent motion in the visual scene
generated by their own movement. Much of what is known about bees’ visually-guided
flight comes from experiments employing real physical objects, which constrains the
types of cues that can be presented. Here we implement a virtual reality system allowing
us to create the visual illusion of objects in 3D space. We trained bumblebees, Bombus
ignitus, to feed from a static target displayed on the floor of a flight arena, and then
observed their responses to various interposing virtual objects. When a virtual floor was
presented above the physical floor, bees were reluctant to descend through it, indicating
that they perceived the virtual floor as a real surface. To reach a target at ground level,
they flew through a hole in a virtual surface above the ground, and around an elevated
virtual platform, despite receiving no reward for avoiding the virtual obstacles. These
behaviors persisted even when the target was made (unrealistically) visible through the
obstructing object. Finally, we challenged the bees with physically impossible ambiguous
stimuli, which give conflicting motion and occlusion cues. In such cases, they behaved
in accordance with the motion information, seemingly ignoring occlusion.

Additional Information:© 2018 Frasnelli, Hempel de Ibarra and Stewart. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Keywords:optic flow, vision, motion, flight, virtual reality, closed-loop, free flight, bee
Subjects:C Biological Sciences > C340 Entomology
C Biological Sciences > C100 Biology
Divisions:College of Science > School of Life Sciences
ID Code:33106
Deposited On:06 Sep 2018 14:44

Repository Staff Only: item control page