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EEG已证明在产生局灶和(或)发作性异常(即脓肿、癫痫)的某种神经疾病的识别中是重要的工具。但是,有少数例外,EEG对识别引起背景活动的更细微改变(如智能发育不全,早老痴呆)的神经疾病很少有用。皮层诱发电位(EP)也还未能达到临床应用的水平。为了帮助这些资料的临床评价,著者最近制成一种局部记录图形化系统和计算机显示的头皮记录信号,即脑电活动图形化(Brain Electrical actvity mapping,BEAM)。图象来自EEG和EP两方面的资料。对于EEG资料可显示传统的δ、θ、α和β频带的空间分布。对于
EEG has proven to be an important tool in the identification of certain neurological diseases that produce focal and / or episodic anomalies (ie abscesses, epilepsy). However, with a few exceptions, EEG is rarely useful in identifying neurological diseases that result in more subtle changes in background activity (eg, Idiopathic dementia, Alzheimer’s disease). Cortical evoked potential (EP) has not yet reached the level of clinical application. To assist in the clinical evaluation of these data, the authors recently generated a scalp recorded signal of a localized recording graphical system and computerized display, namely, Brain Electrical Activity Mapping (BEAM). Images from both EEG and EP sources. For EEG data, the spatial distribution of the traditional δ, θ, α and β bands can be shown. for