Tolerant pattern recognition: evidence from phonotactic responses in the cricket Gryllus bimaculatus (de Geer).
Publication Date
2021-12-22Journal Title
Proc Biol Sci
ISSN
0962-8452
Publisher
The Royal Society
Volume
288
Issue
1965
Language
en
Type
Article
This Version
AO
VoR
Metadata
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Bent, A. M., & Hedwig, B. (2021). Tolerant pattern recognition: evidence from phonotactic responses in the cricket Gryllus bimaculatus (de Geer).. Proc Biol Sci, 288 (1965) https://doi.org/10.1098/rspb.2021.1889
Description
Funder: Royal Society; Id: http://dx.doi.org/10.13039/501100000288
Funder: Biotechnology and Biological Sciences Research Council; Id: http://dx.doi.org/10.13039/501100000268
Abstract
When the amplitude modulation of species-specific acoustic signals is distorted in the transmission channel, signals become difficult to recognize by the receiver. Tolerant auditory pattern recognition systems, which after having perceived the correct species-specific signal transiently broaden their acceptance of signals, would be advantageous for animals as an adaptation to the constraints of the environment. Using a well-studied cricket species, Gryllus bimaculatus, we analysed tolerance in auditory steering responses to 'Odd' chirps, mimicking a signal distorted by the transmission channel, and control 'Silent' chirps by employing a fine-scale open-loop trackball system. Odd chirps on their own did not elicit a phonotactic response. However, when inserted into a calling song pattern with attractive Normal chirps, the females' phonotactic response toward these patterns was significantly larger than to patterns with Silent chirps. Moreover, females actively steered toward Odd chirps when these were presented within a sequence of attractive chirps. Our results suggest that crickets employ a tolerant pattern recognition system that, once activated, transiently allows responses to distorted sound patterns, as long as sufficient natural chirps are present. As pattern recognition modulates how crickets process non-attractive acoustic signals, the finding is also relevant for the interpretation of two-choice behavioural experiments.
Keywords
Behaviour, Research articles, phonotaxis, Gryllus bimaculatus, calling song, oddball paradigm, tolerant pattern recognition, acoustic communication
Sponsorship
Biotechnology and Biological Sciences Research Council (BB/P022111/1)
Identifiers
rspb20211889
External DOI: https://doi.org/10.1098/rspb.2021.1889
This record's URL: https://www.repository.cam.ac.uk/handle/1810/333456
Rights
Licence:
http://creativecommons.org/licenses/by/4.0/
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