Orientation mosaic in barn owl's visual Wulst revealed by optical imaging: comparison with cat and monkey striate and extra-striate areas
Orientation mosaic in barn owl's visual Wulst revealed by optical imaging: comparison with cat and monkey striate and extra-striate areas
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DOI：
10.1016/s0006-8993(02)03747-2
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发表时间：
2003-01-24
期刊：
影响因子：
2.9
通讯作者：
Pettigrew, JD
中科院分区：
文献类型：
--
作者：
Liu, GB;Pettigrew, JD
使用内在信号光学成像技术，从仓鸮的 Wulst 代表中央视觉的区域以及从猫和狨猴的视觉皮层（V1 和 V2）获得方向偏好图。谷仓猫头鹰视觉 Wulst 中的等向域是片状结构，片间距离类似于 0.9 朗姆，以风车状方式围绕奇点排列。仓鸮的等向结构域的大小比 V1 区中发现的要大，但与猫和猴的 V2 区中发现的相当。猫头鹰视觉 Wulst 的表层可能相当于灵长类动物和食肉动物的纹状外视觉区域，正如电生理学家讨论的那样，与哺乳动物的新皮质相比，Wulst 的径向尺寸大大增加。 (C) 2002 Elsevier Science B.V. 保留所有权利。
Using the technique of intrinsic signal optical imaging, orientation preference maps were obtained from the Wulst of the barn owl in the area that represents central vision, and from the visual cortices (V1 and V2) of cat and marmoset monkey. Iso-orientation domains in barn owl's visual Wulst were patch-like structures with an inter-patch distance of similar to0.9 rum, arranged in a pinwheel-like manner around singularity points. The size of the iso-orientation domains in barn owl was larger than those found in area V1, but comparable to those found in area V2, of cat and monkey. Superficial layers of the owl visual Wulst may be equivalent to extra-striate visual areas of primates and carnivores, as already suggested by electrophysiologists discussing the much increased radial dimensions of the Wulst compared with neocortex in mammals. (C) 2002 Elsevier Science B.V. All rights reserved.