Brain activation pattern depends on the strategy chosen by zebra finches to solve an orientation task
Brain activation pattern depends on the strategy chosen by zebra finches to solve an orientation task
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DOI：
10.1242/jeb.063941
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发表时间：
2012-02-01
影响因子：
2.8
通讯作者：
Bischof, Hans-Joachim
中科院分区：
文献类型：
--
作者：
Mayer, Uwe;Bischof, Hans-Joachim
斑马雀（Taeniopygia guttata）被训练在鸟舍地板上的四个喂食器之一中寻找食物。这个喂食器在训练过程中总是在同一个地方，并且有一个独特的图案。在试验中，有明显图案的喂食器与其他喂食器互换，因此鸟类必须决定使用图案还是使用原始位置来寻找食物。一半的鸟使用一种策略，一半使用另一种策略。c-Fos免疫组化显示，不同的脑区被激活。当使用空间线索时，海马体被激活，而在使用喂食器的模式进行定向时，部分胶质（构造）视觉系统显示出更强的激活。这两种策略都激活了丘脑的视觉系统，表明空间定向和模式定向都参与其中。因为所有斑胸草雀的实验情况都是一样的，激活模式只取决于每只鸟自愿选择的策略。
Zebra finches (Taeniopygia guttata) were trained to find food in one of four feeders on the floor of an aviary. This feeder was always in the same place during training and was additionally marked by a distinct pattern. In the test trial the distinctly patterned feeder was interchanged with one of the other feeders, so that the birds had to decide to use either the pattern or the original location for finding food. Half of the birds used one strategy and half used the other. According to the strategy applied, different brain areas were activated, as demonstrated by c-Fos immunohistochemistry. The hippocampus was activated when spatial cues were used, while in birds orienting using the pattern of the feeder, part of the collothalamic (tectofugal) visual system showed stronger activation. The visual wulst of the lemnothalamic (thalamofugal) visual system was activated with both strategies, indicating an involvement in both spatial and pattern-directed orientation. Because the experimental situation was the same for all zebra finches, the activation pattern was only dependent on the strategy that was voluntarily chosen by each of the birds.