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High contrast sensitivity for visually guided flight control in bumblebees

Chakravarthi, Aravin LU ; Kelber, Almut LU ; Baird, Emily LU and Dacke, Marie LU (2017) In Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology
Abstract
Many insects rely on vision to find food, to return to their nest and to carefully control their flight between these two locations. The amount of information available to support these tasks is, in part, dictated by the spatial resolution and contrast sensitivity of their visual systems. Here, we investigate the absolute limits of these visual properties for visually guided position and speed control in Bombus terrestris. Our results indicate that the limit of spatial vision in the translational motion detection system of B. terrestris lies at 0.21 cycles deg−1 with a peak contrast sensitivity of at least 33. In the perspective of earlier findings, these results indicate that bumblebees have higher contrast sensitivity in the motion... (More)
Many insects rely on vision to find food, to return to their nest and to carefully control their flight between these two locations. The amount of information available to support these tasks is, in part, dictated by the spatial resolution and contrast sensitivity of their visual systems. Here, we investigate the absolute limits of these visual properties for visually guided position and speed control in Bombus terrestris. Our results indicate that the limit of spatial vision in the translational motion detection system of B. terrestris lies at 0.21 cycles deg−1 with a peak contrast sensitivity of at least 33. In the perspective of earlier findings, these results indicate that bumblebees have higher contrast sensitivity in the motion detection system underlying position control than in their object discrimination system. This suggests that bumblebees, and most likely also other insects, have different visual thresholds depending on the behavioral context. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Bombus terrestris , Hymenoptera , Spatial resolution , Contrast sensitivity, Motion detection system
in
Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology
pages
8 pages
publisher
Springer
external identifiers
  • scopus:85028867023
  • wos:000416053900005
ISSN
1432-1351
DOI
10.1007/s00359-017-1212-6
language
English
LU publication?
yes
id
426f9fae-fce7-43da-b5dd-339d35482c21
date added to LUP
2017-09-18 14:46:58
date last changed
2018-01-16 13:25:59
@article{426f9fae-fce7-43da-b5dd-339d35482c21,
  abstract     = {Many insects rely on vision to find food, to return to their nest and to carefully control their flight between these two locations. The amount of information available to support these tasks is, in part, dictated by the spatial resolution and contrast sensitivity of their visual systems. Here, we investigate the absolute limits of these visual properties for visually guided position and speed control in Bombus terrestris. Our results indicate that the limit of spatial vision in the translational motion detection system of B. terrestris lies at 0.21 cycles deg−1 with a peak contrast sensitivity of at least 33. In the perspective of earlier findings, these results indicate that bumblebees have higher contrast sensitivity in the motion detection system underlying position control than in their object discrimination system. This suggests that bumblebees, and most likely also other insects, have different visual thresholds depending on the behavioral context.},
  author       = {Chakravarthi, Aravin and Kelber, Almut and Baird, Emily and Dacke, Marie},
  issn         = {1432-1351},
  keyword      = {Bombus terrestris ,Hymenoptera ,Spatial resolution ,Contrast sensitivity,Motion detection system },
  language     = {eng},
  month        = {09},
  pages        = {8},
  publisher    = {Springer},
  series       = {Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology},
  title        = {High contrast sensitivity for visually guided flight control in bumblebees},
  url          = {http://dx.doi.org/10.1007/s00359-017-1212-6},
  year         = {2017},
}