Modelling event-related skin conductance responses.
Modelling event-related skin conductance responses.
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DOI:
10.1016/j.ijpsycho.2010.01.005
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发表时间:
2010-03
影响因子:
3
通讯作者:
Dolan, Raymond J.
中科院分区:
文献类型:
--
作者:
Bach, Dominik R.;Flandin, Guillaume;Friston, Karl J.;Dolan, Raymond J.
关键词:
Analytic tools for psychophysiological signals often make implicit assumptions that are unspecified. In developing a mathematical framework for analysis of skin conductance responses [SCRs], we formalise our assumptions by positing that SCRs can be regarded as the output of a linear time-invariant filter. Here, we provide an empirical test of these assumptions. Our findings indicate that a large component of the variance in SCRs can be explained by one response function per individual. We note that baseline variance (i.e. variance in the absence of evoked responses) is higher than variance that could not be explained by a linear time-invariant model of evoked responses. Furthermore, there was no evidence for nonlinear interactions among evoked responses that depended on their temporal overlap. We develop a canonical response function and show that it can be used for signals from different recording sites. We discuss the implications of these observations for model-based analysis of SCRs.
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影响因子:
3
作者:
Bach DR;Flandin G;Friston KJ;Dolan RJ
通讯作者:
Dolan RJ
影响因子:
3.7
作者:
UNO, T;GRINGS, WW
通讯作者:
GRINGS, WW
影响因子:
3.3
作者:
Friston, KJ;Josephs, O;Turner, R
通讯作者:
Turner, R
影响因子:
4.1
作者:
Lan, K;Jorgenson, JW
通讯作者:
Jorgenson, JW
影响因子:
3
作者:
Alexander, DM;Trengove, C;Gordon, E
通讯作者:
Gordon, E