Methodological considerations in ambulatory skin conductance monitoring.

Methodological considerations in ambulatory skin conductance monitoring.
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DOI:
10.1016/j.ijpsycho.2011.02.002
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发表时间:
2011-05
影响因子:
3
通讯作者:
Kim, Sunyoung
Kim, Sunyoung
中科院分区:
心理学3区
文献类型:
--
作者:
Doberenz, Sigrun;Roth, Walton T.;Wollburg, Eileen;Maslowski, Nina I.;Kim, Sunyoung

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很少有人知道手指的皮肤电导(SC)记录受到电极部位退化、环境温度(TMP)或身体活动(ACT)等因素的影响,或者受到年龄、性别、种族或体重指数的影响。我们记录了48名健康对照者24小时内的SC、TMP和ACT,并计算了SC水平(SCL)、标准差、SC变异系数以及非特异性SC波动的频率和幅度。一种评估电极部位退化的方法显示平均下降20%,而第二种方法没有发现显著变化。所有的SC测量值在清醒时高于睡眠。其他因素以不同的方式影响不同的衡量标准。因此,在实验室外进行24小时SC记录是可行的,但需要对混杂变量的影响进行校正。
Little is known how much skin conductance (SC) recordings from the fingers are affected by factors such as electrode site deterioration, ambient temperature (TMP), or physical activity (ACT), or by age, sex, race, or body mass index. We recorded SC, TMP, and ACT in 48 healthy control subjects for a 24-hour period, and calculated SC level (SCL), its standard deviation, the coefficient of SC variation, and frequency and amplitude of non-specific SC fluctuations. One method of assessing electrode site deterioration showed an average decline of 20 %, while a second method found no significant change. All SC measures were higher during waking than sleep. Other factors influenced different measures in different ways. Thus, 24-hour SC recording outside the laboratory is feasible, but some measures need to be corrected for the influence of confounding variables.
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