Prenatal development of neonatal vocalizations
- Princeton University, United States
- The University of Texas at Arlington, United States
Abstract
Human and non-human primates produce rhythmical sounds as soon as they are born. These early vocalizations are important for soliciting the attention of caregivers. How they develop, remains a mystery. The orofacial movements necessary for producing these vocalizations have distinct spatiotemporal signatures. Therefore, their development could potentially be tracked over the course of prenatal life. We densely and longitudinally sampled fetal head and orofacial movements in marmoset monkeys using ultrasound imaging. We show that orofacial movements necessary for producing rhythmical vocalizations differentiate from a larger movement pattern that includes the entire head. We also show that signature features of marmoset infant contact calls emerge prenatally as a distinct pattern of orofacial movements. Our results establish that aspects of the sensorimotor development necessary for vocalizing occur prenatally, even before the production of sound.
Data availability
All data generated or analysed during this study are available on DRYAD.https://doi.org/10.5061/dryad.m905qfv1x
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Data from: Prenatal development of neonatal vocalizationsDryad Digital Repository, doi:10.5061/dryad.m905qfv1x.
Article and author information
Author details
Daniel Y Takahashi
Funding
National Institute of Neurological Disorders and Stroke (R01NS054898)
- Asif A Ghazanfar
The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.
Reviewing Editor
- Andrew J King, University of Oxford, United Kingdom
Ethics
Animal experimentation: This study was performed in strict accordance with the recommendations in the Guide for the Care and Use of Laboratory Animals of the National Institutes of Health. All of the animals were handled according to approved institutional animal care and use committee (IACUC) protocols (#1908-18) of Princeton University.
Version history
- Received: March 9, 2022
- Preprint posted: April 14, 2022 (view preprint)
- Accepted: July 11, 2022
- Accepted Manuscript published: July 26, 2022 (version 1)
- Version of Record published: August 19, 2022 (version 2)
Copyright
© 2022, Narayanan et al.
This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.
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Prenatal development of neonatal vocalizations
eLife 11:e78485.
https://doi.org/10.7554/eLife.78485
