ENHANCED HIPPOCAMPAL THETA EEG DURING WHOLE-BODY ROTATIONS IN AWAKE RESTRAINED RATS
ENHANCED HIPPOCAMPAL THETA EEG DURING WHOLE-BODY ROTATIONS IN AWAKE RESTRAINED RATS
复制标题
DOI：
10.1016/0304-3940(95)11918-m
复制
发表时间：
1995-09-15
影响因子：
2.5
通讯作者：
BERTHOZ, A
中科院分区：
文献类型：
--
作者：
GAVRILOV, VV;WIENER, SI;BERTHOZ, A
研究人员在清醒的约束大鼠中研究了海马在 θ 波段的慢波活动，因为它们在光照和黑暗中都在水平面上旋转。单极记录是用植入到枕骨齿状回的绝缘银线（直径200μm）进行的。快速傅立叶变换由大鼠被动旋转或保持不动时记录的数据组成。 6-9 Hz 频段（“I 型”theta）的功率在旋转过程中显着增加。在光亮或完全黑暗的条件下进行的实验也获得了相同的结果。这些结果为惯性（可能是前庭）信息在海马空间表征中的作用提供了证据。
Hippocampal slow wave activity in the theta band was studied in awake restrained rats as they were rotated in the horizontal plane both in light and in darkness. Monopolar recordings were made with an insulated silver wire (200 mu m diameter) implanted in the dentate gyrus with reference to the occipital bone. Fast Fourier transforms were made of data recorded when the rat was either rotated passively or remained immobile. The power in the 6-9 Hz frequency band ('type I' theta) was significantly increased during rotations. The same results were obtained in experiments performed in the light or in complete darkness. These results provide evidence for a role of inertial (possibly, vestibular) information in hippocampal spatial representations.