A micro-computed tomography-based physical model of macaque larynx reveals effect of vocal membrane on phonation onset pressure

Yasuaki Yamamoto; Tomoki Yoshitani; Manato Fujie; Koki Sugie; Takeshi Nishimura; Isao T. Tokuda

doi:10.1250/ast.e24.123

Yasuaki Yamamoto, Tomoki Yoshitani, Manato Fujie, Koki Sugie, Takeshi Nishimura, Isao T. Tokuda

著者情報

キーワード: Vocal membrane, animal vocalization, phonation onset pressure, vocal efficiency, vocal fold oscillation

ジャーナルオープンアクセス早期公開

論文ID: e24.123

DOI https://doi.org/10.1250/ast.e24.123

詳細

抄録

The vocal membrane, i.e., an extended part of the vocal fold, is present in non-human primates. To understand its function in animal vocalization, Mergell et al. (1999) constructed a mathematical model of the vocal membrane and predicted that the vocal membrane lowers the phonation threshold pressure required to initiate the vocal fold oscillations. The present study constructed a physical model of the vocal membrane based on a micro-computed tomography measurement of a rhesus macaque larynx. Our physical experiment confirmed that the phonation threshold pressure was indeed lowered and, consequently, the vocal efficiency was increased by the vocal membrane.

責任著者(Corresponding author)

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