Weighted cue integration for straight-line orientation
(2022) In iScience 25(10).- Abstract
Animals commonly integrate multiple sources of information to guide their behavior. Among insects, previous studies have suggested that the relative reliability of cues affects their weighting in behavior, but have not systematically explored how well alternative integration strategies can account for the observed directional choices. Here, we characterize the directional reliability of an ersatz sun at different elevations and wind at different speeds as guiding cues for a species of ball-rolling dung beetle. The relative reliability is then shown to determine which cue dominates when the cues are put in conflict. We further show through modeling that the results are best explained by continuous integration of the cues as a vector-sum... (More)
Animals commonly integrate multiple sources of information to guide their behavior. Among insects, previous studies have suggested that the relative reliability of cues affects their weighting in behavior, but have not systematically explored how well alternative integration strategies can account for the observed directional choices. Here, we characterize the directional reliability of an ersatz sun at different elevations and wind at different speeds as guiding cues for a species of ball-rolling dung beetle. The relative reliability is then shown to determine which cue dominates when the cues are put in conflict. We further show through modeling that the results are best explained by continuous integration of the cues as a vector-sum (rather than switching between them) but with non-optimal weighting and small individual biases. The neural circuitry in the insect central complex appears to provide an ideal substrate for this type of vector-sum-based integration mechanism.
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- author
- Shaverdian, Shahrzad LU ; Dirlik, Elin LU ; Mitchell, Robert ; Tocco, Claudia LU ; Webb, Barbara and Dacke, Marie LU
- organization
- publishing date
- 2022-10-21
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Biological sciences, Ethology, Zoology
- in
- iScience
- volume
- 25
- issue
- 10
- article number
- 105207
- publisher
- Elsevier
- external identifiers
-
- pmid:36274940
- scopus:85141794879
- ISSN
- 2589-0042
- DOI
- 10.1016/j.isci.2022.105207
- language
- English
- LU publication?
- yes
- id
- 9178a2e5-ee06-4652-83df-123aeb94e1b9
- date added to LUP
- 2022-12-13 13:58:27
- date last changed
- 2024-04-18 16:25:40
@article{9178a2e5-ee06-4652-83df-123aeb94e1b9,
abstract = {{<p>Animals commonly integrate multiple sources of information to guide their behavior. Among insects, previous studies have suggested that the relative reliability of cues affects their weighting in behavior, but have not systematically explored how well alternative integration strategies can account for the observed directional choices. Here, we characterize the directional reliability of an ersatz sun at different elevations and wind at different speeds as guiding cues for a species of ball-rolling dung beetle. The relative reliability is then shown to determine which cue dominates when the cues are put in conflict. We further show through modeling that the results are best explained by continuous integration of the cues as a vector-sum (rather than switching between them) but with non-optimal weighting and small individual biases. The neural circuitry in the insect central complex appears to provide an ideal substrate for this type of vector-sum-based integration mechanism.</p>}},
author = {{Shaverdian, Shahrzad and Dirlik, Elin and Mitchell, Robert and Tocco, Claudia and Webb, Barbara and Dacke, Marie}},
issn = {{2589-0042}},
keywords = {{Biological sciences; Ethology; Zoology}},
language = {{eng}},
month = {{10}},
number = {{10}},
publisher = {{Elsevier}},
series = {{iScience}},
title = {{Weighted cue integration for straight-line orientation}},
url = {{http://dx.doi.org/10.1016/j.isci.2022.105207}},
doi = {{10.1016/j.isci.2022.105207}},
volume = {{25}},
year = {{2022}},
}