Başar-Eroglu C, Başar E
Institute of Medical Psychology, Medical University, Lübeck, Germany.
Int J Neurosci. 1991 Oct;60(3-4):227-37. doi: 10.3109/00207459109167035.
In companion reports (Başar-Eroglu et al., in press a,b) it was shown that the hippocampal P300 response had a frequency content with prominent theta enhancement, especially near CA3 region. Moreover, frequency analysis revealed a marked component in the 40 Hz frequency range. In the present study, a detailed account about "40 Hz response accompanied by the N200-P300 compound response" is given. These results were obtained by use of digital adaptive filtering method described in previous studies (Başar et al., 1987, Başar, 1980). The physiological interpretation of the visual 40 Hz component gained tremendous importance since the discovery of Gray and Singer (1987, 1989) of 40 Hz oscillations in the visual cortex. Our analysis shows clearly that the 40 Hz response component is not only a cortical response pattern. Moreover, the 40 Hz response is accompanied by a P300 response and we discuss that it is also a universal building block of brain responsiveness. The 40 Hz response should be correlated with multimodal sensory and cognitive function.
在相关报告中（巴萨尔 - 埃罗格鲁等人，即将发表a、b）表明，海马体P300反应具有频率成分，其中θ波增强显著，特别是在CA3区域附近。此外，频率分析在40赫兹频率范围内揭示了一个明显的成分。在本研究中，给出了关于“伴随N200 - P300复合反应的40赫兹反应”的详细描述。这些结果是通过使用先前研究中描述的数字自适应滤波方法获得的（巴萨尔等人，1987年；巴萨尔，1980年）。自从格雷和辛格（1987年、1989年）在视觉皮层中发现40赫兹振荡以来，视觉40赫兹成分的生理学解释变得极为重要。我们的分析清楚地表明，40赫兹反应成分不仅是一种皮层反应模式。此外，40赫兹反应伴随着P300反应，并且我们认为它也是大脑反应性的一个普遍组成部分。40赫兹反应应与多模态感觉和认知功能相关。
