Brain pathways and behavioral responses to weak electric fields in parasitic sea lampreys (Petromyzon marinus)
Brain pathways and behavioral responses to weak electric fields in parasitic sea lampreys (Petromyzon marinus)
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DOI：
10.1037/0735-7044.118.3.611
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发表时间：
2004-06-01
影响因子：
1.9
通讯作者：
Li, WM
中科院分区：
文献类型：
--
作者：
Chung-Davidson, YW;Yun, SS;Li, WM
作者描述了寄生性七鳃鳗（海七鳃鳗，Petromyzon marinus）对弱电场的行为和大脑反应。在电刺激后，七鳃鳗表现出对测试水族箱阴极一端的偏好。在一定范围的阴极电场（-0.1到 -30.0微伏/厘米）内，七鳃鳗表现出活跃行为增加。相比之下，阳极电场使大多数活跃行为降低到基线以下。暴露于电场导致全脑匀浆中神经元活动标记物Fos、Fos - B和Jun的蛋白质免疫印迹图谱发生变化。电刺激还增加了八侧区以及缰核 - 后屈束 - 脚间系统中Fos - B的免疫反应性。这些结果证实八侧区系统与电感受有关，并表明缰核 - 后屈束 - 脚间系统可能是电感受网络的一部分。
The authors characterized the behavioral and brain responses of parasitic sea lampreys (Petromyzon marinus) to weak electric fields. Lampreys showed preferences for the cathodal end of the testing aquarium after electric stimulation. Within a range of cathodal fields (-0.1 to -30.0 muV/cm), lampreys exhibited increased active behaviors. In contrast, anodal fields decreased most active behaviors below baseline. Exposure to electric fields resulted in changes in Western blot patterns for the neuronal activity markers Fos, Fos-B, and Jun in whole-brain homogenate. Electric stimulation also increased Fos-B immunoreactivity in the octavolateral and the habenula-fasciculus retroflexus-interpeduncular systems. These results confirm that the octavolateral system is associated with electroreception and suggest that the habenula-fasciculus retroflexus-interpeduncular system may be part of the electroreceptive network.