Critchley Hugo D
Wellcome Department of Imaging Neuroscience, Institute of Neurology, University College London, Queen Square.
Neuroscientist. 2002 Apr;8(2):132-42. doi: 10.1177/107385840200800209.
Electrodermal activity (EDA) is now the preferred term for changes in electrical conductance of the skin, including phasic changes that have been referred to as galvanic skin responses (GSR), that result from sympathetic neuronal activity. EDA is a sensitive psychophysiological index of changes in autonomic sympathetic arousal that are integrated with emotional and cognitive states. Until recently there was little direct knowledge of brain mechanisms governing generation and control of EDA in humans. However, studies of patients with discrete brain lesions and, more recently, functional imaging techniques have clarified the contribution of brain regions implicated in emotion, attention, and cognition to peripheral EDA responses. Moreover, such studies enable an understanding of mechanisms by which states of bodily arousal, indexed by EDA, influence cognition and bias motivational behavior.
皮肤电活动（EDA）现在是指皮肤电导变化的首选术语，包括由交感神经活动引起的被称为皮肤电反应（GSR）的相位变化。EDA是自主交感神经觉醒变化的敏感心理生理指标，与情绪和认知状态相关。直到最近，人们对人类中控制EDA产生和调节的脑机制仍知之甚少。然而，对患有离散性脑损伤患者的研究以及最近的功能成像技术已经阐明了涉及情绪、注意力和认知的脑区对外周EDA反应的作用。此外，此类研究有助于理解以EDA为指标的身体觉醒状态影响认知和偏向动机行为的机制。
