Male zebra finches and Bengalese finches emit directed songs to the video images of conspecific females projected onto a TFT display
Male zebra finches and Bengalese finches emit directed songs to the video images of conspecific females projected onto a TFT display
复制标题
DOI：
10.2108/zsj.16.63
复制
发表时间：
1999-02-01
影响因子：
0.9
通讯作者：
Okanoya, K
中科院分区：
文献类型：
--
作者：
Ikebuchi, M;Okanoya, K
在研究种间和种内交流机制和功能的行为学研究中，能否操纵刺激特性是一个关键因素。如果我们能用人造模型代替真实的动物，那将大大推进这项研究。在这里，我们测试是否男性斑胸草雀（Taeniopygia guttata castanotis）和男性孟加拉雀（Lonchura striata var，arctica）发出的自然行为，定向唱歌的视频图像同种女性。当使用传统的阴极射线管（CRT）监视器时，鸟类几乎没有表现出行为反应的迹象。然而，当使用薄膜晶体管（TFT）液晶显示器时，观察到对图像的几种行为反应，主要是性显示。在两种鸟类中，向TFT投影图像发射的定向鸣叫量与向活雌鸟发射的定向鸣叫量相当。TFT显示器比CRT显示器更能激发鸟类的自然行为，原因可能在于TFT显示器是无闪烁的，而CRT显示器可能会对具有高临界闪烁频率的鸟类的眼睛产生一些闪烁。在行为学研究中，TFT监视器比CRT监视器更能代替真实的实物。这种技术，结合现代图像处理技术，应该是有用的鸟类行为的神经行为学研究。
In behavioral investigations examining mechanisms and functions of inter- and intra specific communications, whether one can manipulate stimulus properties is a critical factor. if we can substitute a real animal with an artificial model, that should greatly advance the research. Here we tested whether male zebra finches ( Taeniopygia guttata castanotis) and male Bengalese finches (Lonchura striata var, domestica) emit natural behavior of directed singing to video images of conspecific females. When a conventional cathode ray tube (CRT) monitor was used, birds showed few signs of behavioral responses. However, when a thin film transistor (TFT) liquid crystal display was used, several behavioral responses, mostly sexual displays, to the images were observed. The amount of directed singing emitted towards the TFT projected images were comparable to that emitted to the live female birds in both species of birds. The reason why TFT monitor is much more powerful than CRT monitor in eliciting natural behavior from these birds may lie in the fact that TFT monitor is flickerless while CRT monitor might produce some flickers to the eye of birds that has high critical flicker frequency. TFT monitors should be better substitute of real objects than CRT monitors in behavioral investigations. This technique, combined with modern image processing techniques, should be useful for neuroethological studies of bird behavior.