TY - JOUR
T1 - The developmental dynamics of marmoset monkey vocal production
AU - Takahashi, D. Y.
AU - Fenley, A. R.
AU - Teramoto, Y.
AU - Narayanan, D. Z.
AU - Borjon, J. I.
AU - Holmes, P.
AU - Ghazanfar, A. A.
N1 - Publisher Copyright:
© 2015, American Association for the Advancement of Science. All rights reserved.
PY - 2015/8/14
Y1 - 2015/8/14
N2 - Human vocal development occurs through two parallel interactive processes that transform infant cries into more mature vocalizations, such as cooing sounds and babbling. First, natural categories of sounds change as the vocal apparatus matures. Second, parental vocal feedback sensitizes infants to certain features of those sounds, and the sounds are modified accordingly. Paradoxically, our closest living ancestors, nonhuman primates, are thought to undergo few or no production-related acoustic changes during development, and any such changes are thought to be impervious to social feedback. Using early and dense sampling, quantitative tracking of acoustic changes, and biomechanical modeling, we showed that vocalizations in infant marmoset monkeys undergo dramatic changes that cannot be solely attributed to simple consequences of growth. Using parental interaction experiments, we found that contingent parental feedback influences the rate of vocal development. These findings overturn decades-old ideas about primate vocalizations and show that marmoset monkeys are a compelling model system for early vocal development in humans.
AB - Human vocal development occurs through two parallel interactive processes that transform infant cries into more mature vocalizations, such as cooing sounds and babbling. First, natural categories of sounds change as the vocal apparatus matures. Second, parental vocal feedback sensitizes infants to certain features of those sounds, and the sounds are modified accordingly. Paradoxically, our closest living ancestors, nonhuman primates, are thought to undergo few or no production-related acoustic changes during development, and any such changes are thought to be impervious to social feedback. Using early and dense sampling, quantitative tracking of acoustic changes, and biomechanical modeling, we showed that vocalizations in infant marmoset monkeys undergo dramatic changes that cannot be solely attributed to simple consequences of growth. Using parental interaction experiments, we found that contingent parental feedback influences the rate of vocal development. These findings overturn decades-old ideas about primate vocalizations and show that marmoset monkeys are a compelling model system for early vocal development in humans.
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U2 - 10.1126/science.aab1058
DO - 10.1126/science.aab1058
M3 - Article
C2 - 26273055
AN - SCOPUS:84940192837
SN - 0036-8075
VL - 349
SP - 734
EP - 738
JO - Science
JF - Science
IS - 6249
ER -