Flow-field variables trigger landing in flies

Wagner, H

doi:10.1038/297147a0

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Flow-field variables trigger landing in flies

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Wagner, H
Max Planck Institute for Biological Cybernetics, Max Planck Society;
Former Department Information Processing in Insects, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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https://www.nature.com/articles/297147a0.pdf?origin=ppub
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Citation

Wagner, H. (1982). Flow-field variables trigger landing in flies. Nature, 297(5862), 147-148. doi:10.1038/297147a0.

Cite as: https://hdl.handle.net/21.11116/0000-0006-68D5-5

Abstract

The eyes of moving animals experience a continuously changing flow of stimulation. Information contained in this ‘optical flow field’ can be extracted to control movement1–4. I present here evidence that pre-landing deceleration in flies is determined by such information: onset of deceleration is triggered when the ratio of the image expansion of a target on the retina to the image size (‘relative retinal expansion velocity’, RREV) reaches a critical value.