𝛿波

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呢個腦電波喺1 秒之内有大约 4 个波,频率大约 4 Hz,属 Delta波。

𝛿波(英语:delta wave)是脑电波个一种,指频率处于 0.5 至 4 Hz 之间个脑电波,跟其他脑电波一样子,有得用脑电图个方法量度。伊是主要脑电波当中频率最低慨,一般都拨人认为反映一个冇啥活动个脑,是孲𤘅子个脑最常有个脑电波,而在正常个大人当中通常就会在非快速动眼睡眠个第三阶段-即是个人睏得最深哪时出现。

伊个名出自希腊字母当中个「𝛿」。

概论[编辑]

  • 跟其他脑电波一样,Delta 汳可以用脑电图(EEG)个方法探测得到。本来学界对 Delta 波个定义是「频率在 1 至 4 Hz 之间个脑电波」,但是近期个研究就有兴将个界限设在垃海「0.5 至 2.0 Hz」垃海。 Delta 波在古典脑电研究所描述个脑电波当中最低频慨,要去到廿一世纪头慨脑电研究先有尝试低频个脑电波-即是频率低到成0.1 Hz 以下个脑电波。
  • 在一个正常健全个大人身上,Delta 波一般要去到睏觉慨第三阶段当中先会出现,在嗰阵个脑仲有至少50% 个活动是高频过Delta 波,而去到第四阶段-只动物睏得最深啥段-个脑就基本上由Delta 波主导了,Delta 波个比例会超过50% 。已知全部个哺乳类动物都会喺睏觉哀时第四阶段经过了。
  • Delta 波跟 K-complex 箇种脑电现象有关:在睏觉个第三阶段,K-complex 还会在 Delta 波出现前出现。

更多专题页面[编辑]

脑电波[编辑]

参考书[编辑]

  • Brazier, M. A. B. (1970), The Electrical Activity of the Nervous System, London: Pitman.

参考资料[编辑]

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  3. Brigo F (2011). "Intermittent rhythmic delta activity patterns". Epilepsy & Behavior (Review). 20 (2): 254–6.
  4. Walker, Peter (1999). Chambers dictionary of science and technology. Edinburgh: Chambers. p. 312.
  5. Hiltunen T1, Kantola J, Abou Elseoud A, Lepola P, Suominen K, Starck T, Nikkinen J, Remes J, Tervonen O, Palva S, Kiviniemi V, Palva JM. (2014). Infra-slow EEG fluctuations are correlated with resting-state network dynamics in fMRI. The Journal of Neuroscience, 34(2): 356-362.
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  8. De Gennaro, L., Ferrara, M., & Bertini, M. (2000). The spontaneous K-complex during stage 2 sleep: is it the 'forerunner' of delta waves?. Neuroscience Letters, 291(1), 41–43.
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  12. Mistlberger, R. E., Bergmann, B. M., & Rechtschaffen, A. (1987). RELATIONSHIPS AMONG WAKE EPISODE LENGTHS, CONTIGUOUS SLEEP EPISODE LENGTHS, AND ELECTROENCEPHALOGRAPHIC DELTA WAVES IN RATS WITH SUPRACHIASMATIC NUCLEI LESIONS. [Article]. Sleep, 10(1), 12-24.
  13. Hobson, J. , & Pace-Schott, E. (2002). The Cognitive Neuroscience of Sleep: Neuronal Systems, Consciousness and Learning. Nature Reviews Neuroscience, 3(9), 679-693.