应用脑电波评价观看3D视频对人视觉健康与疲劳影响的研究  

Electroencephalogram research on the visual health and fatigue induced by watching 3D video

作　　者：张莉[1] 徐亮[1] 王笑[2] 张运红 李建军[1] 

机构地区：[1]首都医科大学附属北京同仁医院北京同仁眼科中心北京市眼科研究所眼科学与视觉科学北京市重点实验室,100005 [2]南京航空航天大学自动化学院生物医学工程系,210016 [3]中国标准研究院,北京100086

出　　处：《眼科》2015年第5期324-331,共8页Ophthalmology in China

基　　金：国家科技支撑计划项目(2011BAH15B08;2012BAH05F05;2012BAI23B07);首都卫生发展科研专项项目(2011-1016-06)

摘　　要：目的探讨应用脑电波分析观看三维(3D)立体影片对人体健康及疲劳产生的影响。设计实验研究。研究对象40例健康志愿者,年龄20~30岁,屈光状态为正视或轻度近视(球镜>-3.0 D,柱镜-1.0 D^+1.0 D)。方法 40例受试者分别在2天上午观看同一内容的二维(2D)和3D显示的视频40分钟,应用脑电分析仪适时记录观看2D和3D视频时的脑电波变化,通过分析比较观看2D和3D视频模式时脑电信号的α、β、θ、δ波4个特征波段的相对能量、疲劳因子R值、AB值、重心频率(GF)的变化。利用脑电分析仪的分析软件及统计学分析,分析观看2D与3D视频诱发的脑电特征参数变化。主要指标脑电波信号的4个特征波段α、β、θ、δ波的相对能量、R值、AB值、GF。结果观看2D视频的22例及观看3D视频的35例脑电波结果,α波段相对能量2D模式高于3D模式,β波段相对能量3D模式高于2D模式。O1、O2、Oz、TP8、T5通道,观看时间因素对α波段相对能量的影响差异有统计学意义(P=0.03、0.03、0.02、0.05、0.04),随观看时间延长,α波段相对能量呈下降趋势;在T3通道,观看时间因素对β波段相对能量的影响差异有统计学意义(P=0.03),随观看时间延长,β波段相对能量呈上升趋势。观看模式因素(2D与3D模式比较),在T5、TP8通道,α波段相对能量2D模式高于3D模式,差异有统计学意义(P=0.02、0.01);T3通道β波段的相对能量3D模式高于2D模式,且差异有统计学意义(P=0.001)。R值在2D模式下始终高于3D模式,AB值同R值的变化规律一致。结论应用脑电波评价观看3D模式视频,脑电波α波段和β波段相对能量及疲劳因子R值均反应在观看3D视频的40分钟内大脑处于警觉、紧张状态中,由于大脑处理3D视频的信息量丰富,随着观看时间延长,大脑可能会逐渐产生疲劳。Objective To explore the visual health and fatigue induced by watching three dimensional （3D） video using electroencephalogram （EEG）. Design Experimental study. Participants Forty healthy subjects, aged 20 to 30 years old, with refractive status being emmetropia, or mild myopia （sphere power 〉-3.0 D, cylinder power changed between -1.0D~＋1.0D）. Methods Every subject watched 40 minutes video showed in two kinds of pattern, two dimension （2D） and tree dimension （3D） video with the same content in different two days. Electroencephalogram （EEG） analyzer was used to record EEG signal changing when subjects watching 2D or 3D video with real time. EEG signals of relative energy in α, β, θ and δ rhythms, R value, AB value and gravity frequency in 2D video pattern and 3D video pattern were compared, using software of EEG analyzer and statistics methods. Main Outcome Measures EEG parameters include relative energy of α, β, θ, δ rhythms, and R value, AB value and gravity frequency. Results EEG signals of 22 subjects watching 2D pattern video and 35 subjects watching the same film in 3D pattern were evaluated. Relative energy of α rhythm was larger in watching 2D video pattern than that in watching 3D video pattern. Relative energy of β rhythm was lower in watching 2D video pattern than that in watching 3D video pattern. Relative energy of θ rhythm in watching 2D pattern video was close to watching 3D pattern video. Relative energy of δ rhythm was higher in watching 3D pattern. R value and AB value were larger in watching 2D pattern video than those in watching 3D pattern video, and this difference was lessened with time. Gravity frequency was higher in watching 3D pattern video. The relative energy of α, β, θ and δ rhythms in different brain areas behaved differently in watching 2D and 3D patterns video. O1, O2, Oz, TP8 and T5 channels of relative energy ofαrhythm, the difference was significant, compared among 4 time periods （watching video for 10 min, 20min, 30 min, 40min）,

关 键 词：立体显示 立体视觉 脑电波 疲劳 

分 类 号：R741.044[医药卫生—神经病学与精神病学]