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Gelada vocal sequences follow Menzerath’s linguistic law

Gustison, Morgan L. ; Semple, Stuart ; Ferrer-i-Cancho, Ramon ; Bergman, Thore J.

Proceedings of the National Academy of Sciences - PNAS, 2016-05, Vol.113 (19), p.E2750-E2758 [Periódico revisado por pares]

United States: National Academy of Sciences

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Título:
Gelada vocal sequences follow Menzerath’s linguistic law
Autor: Gustison, Morgan L. ; Semple, Stuart ; Ferrer-i-Cancho, Ramon ; Bergman, Thore J.
Assuntos: Algorithms ; Altmann law ; Animal communication ; Animals ; Biological Sciences ; Breathing control ; Communication ; Complexity ; Correlation analysis ; Evolution ; Genomes ; Informàtica ; Intel·ligència artificial ; Language ; Life sciences ; Linguistics ; Lingüística ; Llenguatge natural ; Male ; Menzerath ; Models, Biological ; Monkeys & apes ; PNAS Plus ; Primate ; Self-organization ; Sex Factors ; Sound Spectrography - methods ; Speech Production Measurement - methods ; Theropithecus - physiology ; Theropithecus gelada ; Vocalization, Animal - physiology ; Vocalizations ; Zipf ; Àrees temàtiques de la UPC
É parte de: Proceedings of the National Academy of Sciences - PNAS, 2016-05, Vol.113 (19), p.E2750-E2758
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Edited by Dorothy L. Cheney, University of Pennsylvania, Philadelphia, PA, and approved March 4, 2016 (received for review December 1, 2015)
1M.L.G. and S.S. contributed equally to this work.
Author contributions: M.L.G. and S.S. designed research; M.L.G. collected data; M.L.G. and R.F.C. analyzed data; R.F.C. designed the mathematical model; T.J.B. facilitated data acquisition; and M.L.G., S.S., R.F.C., and T.J.B. wrote the paper.
Descrição: Identifying universal principles underpinning diverse natural systems is a key goal of the life sciences. A powerful approach in addressing this goal has been to test whether patterns consistent with linguistic laws are found in nonhuman animals. Menzerath’s law is a linguistic law that states that, the larger the construct, the smaller the size of its constituents. Here, to our knowledge, we present the first evidence that Menzerath’s law holds in the vocal communication of a nonhuman species. We show that, in vocal sequences of wild male geladas (Theropithecus gelada), construct size (sequence size in number of calls) is negatively correlated with constituent size (duration of calls). Call duration does not vary significantly with position in the sequence, but call sequence composition does change with sequence size and most call types are abbreviated in larger sequences. We also find that intercall intervals follow the same relationship with sequence size as do calls. Finally, we provide formal mathematical support for the idea that Menzerath’s law reflects compression—the principle of minimizing the expected length of a code. Our findings suggest that a common principle underpins human and gelada vocal communication, highlighting the value of exploring the applicability of linguistic laws in vocal systems outside the realm of language.
Editor: United States: National Academy of Sciences
Idioma: Inglês

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Gelada vocal sequences follow Menzerath’s linguistic law

Gustison, Morgan L. ; Semple, Stuart ; Ferrer-i-Cancho, Ramon ; Bergman, Thore J.

United States: National Academy of Sciences

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