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很久以前,即发現光刺激能阻抑脑波中的α节律,这种阻抑现象能用于建立条件反射(Loomis氏等1936;Jasper & Shagass 1941;M.H.氏等1945;氏1947。);此后不少人探討人类基本神經过程在脑波节律上的反映,这些都为应用脑电活动检查来进行神經活动的研究奠定了基础。这种检查方法的优点在于根据神經原的电活动来分析神經过程的特征,而不必間接依賴于外周效应(如唾液、肌肉运动、血管舒縮……等形式),因此就有可能进行比較直接的、深入细緻的观察;但神經过程在脑波节律上的表現形式是多样的,而目前对其某些基本变化規律尚不十分了解。我們曾刘21例神經衰弱患者应用常規脑
Long ago, it was found that light stimulation suppressed alpha rhythm in brain waves, a phenomenon that can be used to establish conditioned reflexes (Loomis et al 1936; Jasper & Shagass 1941; MH’s 1955; 1947; Since then, many people explore the basic neural processes in human brain wave rhythm reflect these are for the application of EEG activity to conduct the study of nerve activity laid the foundation. The advantage of this method of examination is that the characteristics of the neurological process are analyzed on the basis of the electrical activity of the neurons without being indirectly dependent on peripheral effects (such as saliva, muscle movements, vasomotor, etc.) and therefore it is possible to compare directly , And thorough and meticulous observation. However, the manifestations of neurological processes on brainwave rhythms are diverse. At present, some basic laws of their changes are not well understood. We have Liu 21 cases of patients with neurasthenia using conventional brain