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女患,19岁,因多次无原因抽风而就医。脑电图所见:基本节律为11C/S低～中波幅α波,调幅欠佳,以顶、枕区较显著,各区并见少许散在低派幅θ波。过度呼吸无异常。睁闭眼试验见到眨眼时低幅θ波增多。嘱病人快速眨眼,于5～8秒钟后,各区出现暴发性中～高波幅、短程多棘慢波。闭眼后异常放电现象消失。眨眼诱发脑电图异常,系因眨眼时,产生的间断光刺激,使丘脑-大脑皮质系统激活,导致异常放电所致。此时,脑电图中可以见到棘波、尖波、暴发性
Female, 19 years old, hospitalized for multiple reasons without ventilation. EEG see: The basic rhythm 11C / S low to medium amplitude α wave, poor amplitude modulation to the top, occipital more significant, and see a little scattered in all districts and low-profile wave θ. Excessive breathing without exception. Open-eye test to see the low-amplitude θ-wave blink more. Instruct the patient blink quickly, in 5 to 8 seconds, the area appeared in the ~ high volatility, short-range spike and wave. After the eyes closed abnormal discharge disappeared. Blinking induced EEG abnormalities, due to blinking, resulting in intermittent light stimulation, the thalamus - cerebral cortex system activation, resulting in abnormal discharge. At this point, EEG can see spikes, sharp waves, fulminant