Decomposition of skin conductance data by means of nonnegative deconvolution

被引：411

作者：

Benedek, Mathias ^{[1
,2
]}

Kaernbach, Christian ^{[2
]}

机构：

[1] Karl Franzens Univ Graz, Inst Psychol, A-8010 Graz, Austria

[2] Univ Kiel, Inst Psychol, Kiel, Germany

来源：

PSYCHOPHYSIOLOGY | 2010年 / 47卷 / 04期

基金：

奥地利科学基金会;

关键词：

Skin conductance; SCR; Electrodermal activity; EDA; Deconvolution; Decomposition; INTERSTIMULUS-INTERVAL PARADIGM; HUMAN SWEAT GLANDS; SUDOMOTOR; RESPONSES; MODEL; VASOCONSTRICTOR; INNERVATION; HABITUATION; DYNAMICS; STIMULUS;

D O I：

10.1111/j.1469-8986.2009.00972.x

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

Skin conductance (SC) data are usually characterized by a sequence of overlapping phasic skin conductance responses (SCRs) overlying a tonic component. The variability of SCR shapes hereby complicates the proper decomposition of SC data. A method is proposed for full decomposition of SC data into tonic and phasic components. A two-compartment diffusion model was found to adequately describe a standard SCR shape based on the process of sweat diffusion. Nonnegative deconvolution is used to decompose SC data into discrete compact responses and at the same time assess deviations from the standard SCR shape, which could be ascribed to the additional process of pore opening. Based on the result of single non-overlapped SCRs, response parameters can be estimated precisely as shown in a paradigm with varying inter-stimulus intervals.

引用

页码：647 / 658

页数：12

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