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Neurosci Biobehav Rev. 2011 Oct;35(9):1959-70. doi: 10.1016/j.neubiorev.2011.05.001. Epub 2011 May 10.
At present there is no direct brain measure of basic emotional dynamics from the human brain. EEG provides non-invasive approaches for monitoring brain electrical activity to emotional stimuli. Event-related desynchronization/synchronization (ERD/ERS) analysis, based on power shifts in specific frequency bands, has some potential as a method for differentiating responses to basic emotions as measured during brief presentations of affective stimuli. Although there appears to be fairly consistent theta ERS in frontal regions of the brain during the earliest phases of processing affective auditory stimuli, the patterns do not readily distinguish between specific emotions. To date it has not been possible to consistently differentiate brain responses to emotion-specific affective states or stimuli, and some evidence to suggests the theta ERS more likely measures general arousal processes rather than yielding veridical indices of specific emotional states. Perhaps cortical EEG patterns will never be able to be used to distinguish discrete emotional states from the surface of the brain. The implications and limitations of such approaches for understanding human emotions are discussed.
目前，还没有直接从人脑测量基本情绪动态的方法。脑电图（EEG）为监测大脑对情绪刺激的电活动提供了非侵入性的方法。基于特定频带功率变化的事件相关去同步/同步（ERD/ERS）分析，可能成为区分基本情绪反应的一种方法，这些情绪是在短暂呈现情感刺激期间测量的。尽管在处理情感听觉刺激的最早阶段，大脑额叶区域似乎存在相当一致的θ ERS，但这些模式并不能轻易区分特定的情绪。迄今为止，还不可能始终如一地区分大脑对特定情感状态或刺激的反应，一些证据表明，θ ERS 更可能衡量一般唤醒过程，而不是产生特定情绪状态的真实指标。也许皮质脑电图模式永远无法用于从大脑表面区分离散的情绪状态。本文讨论了这些方法对理解人类情绪的意义和局限性。
