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  Primate rhythmic categories analyzed on an individual basis

Gamba, M., De Gregorio, C., Valente, D., Raimondi, T., Torti, V., Miaretsoa, L., et al. (2022). Primate rhythmic categories analyzed on an individual basis. In A. Ravignani, R. Asano, D. Valente, F. Ferretti, S. Hartmann, M. Hayashi, et al. (Eds.), The evolution of language: Proceedings of the Joint Conference on Language Evolution (JCoLE) (pp. 229-236). Nijmegen: Joint Conference on Language Evolution (JCoLE).

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Gamba_etal_2022_primate rhythmic categories analyzed on a individual basis.pdf (Publisher version), 456KB
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Gamba_etal_2022_primate rhythmic categories analyzed on a individual basis.pdf
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 Creators:
Gamba, Marco, Author
De Gregorio, Chiara, Author
Valente, Daria, Author
Raimondi, Teresa, Author
Torti, Valeria, Author
Miaretsoa, Longondraza, Author
Carugati, Filippo, Author
Friard, Oliver, Author
Giacoma, Cristina, Author
Ravignani, Andrea1, Author           
Affiliations:
1Comparative Bioacoustics, MPI for Psycholinguistics, Max Planck Society, ou_3217299              

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 Abstract: Rhythm is a fundamental feature characterizing communicative displays, and recent studies showed that primate songs encompass categorical rhythms falling on small integer ratios observed in humans. We individually assessed the presence and sexual dimorphism of rhythmic categories, analyzing songs emitted by 39 wild indris. Considering the intervals between the units given during each song, we extracted 13556 interval ratios and found three peaks (at around 0.33, 0.47, and 0.70). Two peaks indicated rhythmic categories corresponding to small integer ratios (1:1, 2:1). All individuals showed a peak at 0.70, and
most showed those at 0.47 and 0.33. In addition, we found sex differences in the peak at 0.47 only, with males showing lower values than females. This work investigates the presence of individual rhythmic categories in a non-human species; further research may highlight the significance of rhythmicity and untie selective pressures that guided its evolution across species, including humans.

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Language(s): eng - English
 Dates: 2022-09
 Publication Status: Published online
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: -
 Degree: -

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Title: Joint Conference on Language Evolution (JCoLE)
Place of Event: Kanazawa, Japan
Start-/End Date: 2022-09-05 - 2022-09-08

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Title: The evolution of language: Proceedings of the Joint Conference on Language Evolution (JCoLE)
Source Genre: Proceedings
 Creator(s):
Ravignani, Andrea, Editor
Asano, Rie, Editor
Valente, Daria, Editor
Ferretti, Francesco, Editor
Hartmann, Stefan, Editor
Hayashi, Misato, Editor
Jadoul, Yannick, Editor
Martins, Mauricio, Editor
Oseki, Yohei, Editor
Rodrigues, Evelina Daniela, Editor
Vasileva, Olga, Editor
Wacewicz, Slawomir, Editor
Affiliations:
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Publ. Info: Nijmegen : Joint Conference on Language Evolution (JCoLE)
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 229 - 236 Identifier: -