Liu Wan-chun, Gardner Timothy J, Nottebohm Fernando
Field Research Center, The Rockefeller University, 495 Tyrrel Road, Millbrook, NY 12545, USA.
Proc Natl Acad Sci U S A. 2004 Dec 28;101(52):18177-82. doi: 10.1073/pnas.0408065101. Epub 2004 Dec 17.
Does the ontogeny of vocal imitation follow a set program that, given a target sound, unfolds in a predictable manner, or is it more like problem solving, with many possible solutions? We report that juvenile male zebra finches, Taeniopygia guttata, can master their imitation of the same song in various ways; these developmental trajectories are sensitive to the social setting in which the bird grows up. A variety of vocal developmental trajectories have also been described in infants. Are these many ways to learn unique to the vocal domain or a hallmark of advanced brain function?
发声模仿的个体发育是遵循一个既定程序,即给定一个目标声音后,以可预测的方式展开,还是更像解决问题那样有多种可能的解决方案?我们报告称,幼年雄性斑胸草雀(Taeniopygia guttata)能够以多种方式掌握对同一首歌曲的模仿;这些发育轨迹对鸟类成长所处的社会环境敏感。婴儿的发声发育轨迹也有多种描述。这些众多的学习方式是发声领域所特有的,还是高级脑功能的一个标志?