Wellcome Trust Centre for Neuroimaging, University College London, London, United Kingdom.
Int J Psychophysiol. 2010 Apr;76(1):52-5. doi: 10.1016/j.ijpsycho.2010.01.011. Epub 2010 Feb 6.
Autonomic arousal is often indexed by spontaneous fluctuations in skin conductance. Here, we derive a simple measure of sympathetic arousal, using a convolution model of how sudomotor bursting causes fluctuations in skin conductivity. Under this model, the time-integral of measured conductance is proportional to the frequency and amplitude of sudomotor bursts. We demonstrate the validity of this measure in relation to finite impulse response models, and show that it is a better predictor of autonomic arousal, relative to conventional measures.
自主唤醒通常通过皮肤电导率的自发波动来标记。在这里，我们使用关于汗腺爆发如何导致皮肤电导率波动的卷积模型，推导出一个简单的交感神经唤醒度量。根据该模型，测量到的电导率的时间积分与汗腺爆发的频率和幅度成正比。我们证明了该度量与有限脉冲响应模型的有效性，并表明它相对于常规度量是自主唤醒的更好预测指标。
