Control of bill-grasping aperture with varying food size in crows
Control of bill-grasping aperture with varying food size in crows
复制标题
乌鸦不同食物大小对抓嘴孔径的控制
DOI：
10.1097/wnr.0000000000001240
复制
发表时间：
2019
期刊：
影响因子：
1.7
通讯作者：
E-I.
中科院分区：
文献类型：
--
作者：
Matsui;H.;& Izawa;E-I.
灵长类动物的抓握运动被认为是一种视觉引导行为，并且根据视觉信息将手张开的光圈调整到目标尺寸。类似的行为也可以在鸟类中找到，称为“啄食”，包括伸头和抓嘴。主要在鸽子中研究了抓嘴行为，并报道了在灵长类动物中观察到的光圈调整。这项研究的重点是乌鸦啄食的运动学，已知乌鸦拥有灵巧的视觉运动技能，以检查乌鸦是否通过与鸽子类似的运动机制来调整抓取孔径以适应食物直径。啄食一小块食物的过程被记录下来，以分析抓取孔径。结果表明，抓取孔径与食物直径成正比。运动学分析表明，孔径调节是由抓取速度和抓取持续时间介导的，这与之前对鸽子啄食的研究结果一致。然而，抓取速度的相对贡献远高于抓取持续时间。我们的研究结果表明，具有不同觅食生态的鸟类之间有不同的感觉运动机制来控制抓喙。
Grasping movement in primates is known to be a visually guided behavior and the aperture of hand opening is adjusted to the target size on the basis of visual information. The analogous behavior can be found in birds, called ‘pecking’, consisting of head-reaching and bill-grasping. Bill-grasping has been investigated mainly in pigeons and an aperture adjustment as seen in primates has been reported. This study focused on kinematics of pecking in crows, known to possess dexterous visuomotor skills, to examine whether crows adjust the grasping aperture to food diameter with a kinematic mechanism similar to that in pigeons. The pecking at a small piece of food was video recorded to analyze the grasping aperture. The results showed that the grasping aperture was proportional to food diameter. Kinematic analysis showed that the aperture adjustment was mediated by grasping velocity and grasping duration, which is consistent with the findings of previous research on pecking in pigeons. However, the relative contribution of grasping velocity was much higher than that of grasping duration. Our findings suggest the different sensorimotor mechanisms to control bill-grasping between the avian species with different foraging ecology.
登录
查看更多内容
谷仓猫头鹰 (Tyto alba) 使用住宿作为距离提示
DOI：
10.1007/bf00193542
发表时间：
1991
期刊：
Journal of Comparative Physiology A
影响因子：
--
作者：
H. Wagner;F. Schaeffel
通讯作者：
F. Schaeffel
刚出壳雏鸡对横向光学位移的适应和负面影响
影响因子：
56.9
作者：
P. J. Rossi
通讯作者：
P. J. Rossi
鸽子（Columba livia）的大脑机制和摄食行为 I. Quinto-额叶结构
DOI：
--
发表时间：
1973
期刊：
The Journal of comparative neurology
影响因子：
--
作者：
H. Zeigler;Harvey J. Karten
通讯作者：
Harvey J. Karten
影响因子：
6.6
作者：
Nakagawa, Shinichi;Schielzeth, Holger
通讯作者：
Schielzeth, Holger
影响因子：
2.5
作者：
J. Wild;J. Arends;H. Zeigler
通讯作者：
J. Wild;J. Arends;H. Zeigler