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Comparative neuro-behavioral study on auditory cognition in songbirds and fish

鸣禽和鱼类听觉认知的比较神经行为研究

基本信息

批准号：
14510095
负责人：
YAMAZAKI Suteo
金额：
$ 2.5万
依托单位：
Gifu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

项目摘要

We investigated the auditory cognitive brain mechanism of songbird communication in budgerigars, and the cognition of oscillatory stripes of oblique parallel lines in goldfish.In the study of budgerigars, tape-recorded male songs were exposed to each adult female in a sound attenuated box. We counted the number of Zenk-IR (immunoreactive) cells in the female brains, as an indication of activated neurons by the song stimulation. As a result, we found dense immunoreactive neurons in the NCM (neostriatum caudale pars medialis). The more songs were complex, the more were the Zenk protein expressed neurons. Other song-activated neurons were observed in the NIL (neostriatum intermedium pars lateralis) near by the NCM, and field L1, field L3, caudomedial neostriatum in anterior areas of the budgerigar brain.The research of goldfish cognitive behavior was firstly carried out to study whether they can discriminate striped patterns made of horizontal lines out of vertical ones, and we found that they can discriminate those directions. In the succeeding studies, we indicated that goldfish can use both the direction strategy and angle strategy to discriminate between two obliquely striped patterns with different angle/direction. This means that goldfish has two strategies, angle and direction, to discriminate two oblique lines. If so, each goldfish might use the angle or direction as an own preferred strategy. However, we could not show the fact indicating that goldfish have priority to use one strategy over the other.

我们研究了虎皮鹦鹉鸣禽交流的听觉认知脑机制，以及金鱼斜平行线振荡条纹的认知。在对虎皮鹦鹉的研究中，把录制好的雄性虎皮鹦鹉的歌声放在一个消音盒里，让每只成年雌性虎皮鹦鹉听。我们计算了女性大脑中Zenk-IR（免疫反应）细胞的数量，作为歌曲刺激激活神经元的指示。结果，我们在NCM（尾侧内侧新纹状体）中发现密集的免疫反应神经元。歌曲越复杂，表达Zenk蛋白的神经元越多。在靠近NCM的正中侧部新纹状体（NIL）和前脑区L1、L3、尾侧新纹状体中观察到其他被歌曲激活的神经元。我们首先对金鱼的认知行为进行了研究，研究它们是否能区分水平线和垂直线构成的条纹图案，我们发现它们可以区分这些方向。在随后的研究中，我们发现金鱼可以使用方向策略和角度策略来区分不同角度/方向的两种斜条纹图案。这意味着金鱼有两种策略，角度和方向，来区分两条斜线。如果是这样，每条金鱼可能会使用角度或方向作为自己的首选策略。然而，我们不能证明金鱼有优先使用一种策略的事实。