The primate semicircular canal system and locomotion

Fred Spoor; Theodore Garland; Gail Krovitz; Timothy M. Ryan; Mary T. Silcox; Alan Walker

doi:10.1073/pnas.0704250104

The primate semicircular canal system and locomotion

Fred Spoor, Theodore Garland, Gail Krovitz, Timothy M. Ryan, Mary T. Silcox, Alan Walker

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250 Citations (SciVal)

Abstract

The semicircular canal system of vertebrates helps coordinate body movements, including stabilization of gaze during locomotion. Quantitative phylogenetically informed analysts of the radius of curvature of the three semicircular canals in 91 extant and recently extinct primate species and 119 other mammalian taxa provide support for the hypothesis that canal size varies in relation to the jerkiness of head motion during locomotion. Primate and other mammalian species studied here that are agile and have fast, jerky locomotion have significantly larger canals relative to body mass than those that move more cautiously.

Original language	English (US)
Pages (from-to)	10808-10812
Number of pages	5
Journal	Proceedings of the National Academy of Sciences of the United States of America
Volume	104
Issue number	26
DOIs	https://doi.org/10.1073/pnas.0704250104
State	Published - Jun 26 2007

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AU - Krovitz, Gail

AU - Ryan, Timothy M.

AU - Silcox, Mary T.

AU - Walker, Alan

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AB - The semicircular canal system of vertebrates helps coordinate body movements, including stabilization of gaze during locomotion. Quantitative phylogenetically informed analysts of the radius of curvature of the three semicircular canals in 91 extant and recently extinct primate species and 119 other mammalian taxa provide support for the hypothesis that canal size varies in relation to the jerkiness of head motion during locomotion. Primate and other mammalian species studied here that are agile and have fast, jerky locomotion have significantly larger canals relative to body mass than those that move more cautiously.

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The primate semicircular canal system and locomotion

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