言語の発達マルモセット猿の声の発達の動態

D Y Takahashi¹, A R Fenley¹, Y Teramoto²

¹Princeton Neuroscience Institute, Princeton University, Princeton, NJ 08544, USA. Department of Psychology, Princeton University, Princeton, NJ 08544, USA.

Science (New York, N.Y.)

|August 15, 2015

まとめ

マルモセットの赤ちゃんの声は発達過程で劇的に変化しますこれは霊長類に関する以前の考えとは違います両親からのフィードバックは声の発達に大きく影響し人間の発声の起源に洞察を与えてくれます

科学分野:

発達生物学
霊長類の発声
バイオアコースティック

背景:

人間の声の発達には成熟と社会的フィードバックのプロセスが含まれます
非人間霊長類は声の発達が限られており社会的フィードバックに反応しないと考えられていました

研究の目的:

赤ちゃんの声の発達を調査する
社会的フィードバックが霊長類の声の発達に影響するかどうかを判断する

主な方法:

赤ちゃんの音声の初期と濃度のサンプルを採取した
音響の変化の定量的な追跡
バイオメカニカルモデリングと親の相互作用実験

主要な成果:

赤ちゃんの鳴き声は成長によるものではなく音響的な変化を示しました
両親からのフィードバックが声の発達の速度を調節します

結論:

マルモセットの声の発達はダイナミックで社会的交流の影響を受けます
マルモセットは人間の声の発達を理解するための価値あるモデルです

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