首页    期刊浏览 2024年07月09日 星期二
登录注册

文章基本信息

  • 标题:Descent of the larynx in chimpanzee infants
  • 本地全文:下载
  • 作者:Takeshi Nishimura ; Akichika Mikami ; Juri Suzuki
  • 期刊名称:Proceedings of the National Academy of Sciences
  • 印刷版ISSN:0027-8424
  • 电子版ISSN:1091-6490
  • 出版年度:2003
  • 卷号:100
  • 期号:12
  • 页码:6930-6933
  • DOI:10.1073/pnas.1231107100
  • 语种:English
  • 出版社:The National Academy of Sciences of the United States of America
  • 摘要:The human larynx descends during infancy and the early juvenile periods, and this greatly contributes to the morphological foundations of speech development. This developmental phenomenon is believed to be unique to humans. This concept has formed a basis for paleoanthropological studies on the origin and evolution of human speech. We used magnetic resonance imaging to study the development of three living chimpanzees and found that their larynges also descend during infancy, as in human infants. This descent was completed primarily through the rapid descent of the laryngeal skeleton relative to the hyoid, but it was not accompanied by the descent of the hyoid itself. The descent is possibly associated with developmental changes of the swallowing mechanism. Moreover, it contributes physically to an increased independence between the processes of phonation and articulation for vocalization. Thus, the descent of the larynx and the morphological foundations for speech production must have evolved in part during hominoid evolution, and not in a single shift during hominid evolution.
国家哲学社会科学文献中心版权所有