A continuous measure of phasic electrodermal activity.
Electrodermal activity is characterized by the superposition of what appear to be single distinct skin conductance responses (SCRs). Classic trough-to-peak analysis of these responses is impeded by their apparent superposition. A deconvolution approach is proposed, which separates SC data into continuous signals of tonic and phasic activity. The resulting phasic activity shows a zero baseline, and overlapping SCRs are represented by predominantly distinct, compact impulses showing an average duration of less than 2 s. A time integration of the continuous measure of phasic activity is proposed as a straightforward indicator of event-related sympathetic activity. The quality and benefit of the proposed measure is demonstrated in an experiment with short interstimulus intervals as well as by means of a simulation study. The advances compared to previous decomposition methods are discussed.
Benedek
Mathias
M
Department of Psychology, University of Graz, Austria. mathias.benedek@uni-graz.at
Kaernbach
Christian
C
D000465:Algorithms; D003198:Computer Simulation; D005260:Female; D005712:Galvanic Skin Response; D006801:Humans; D008297:Male; D008991:Monitoring, Physiologic / Q000379:methods*; D010507:Periodicity; D012815:Signal Processing, Computer-Assisted; D013997:Time Factors; D055815:Young Adult
Auton Neurosci. 2001 Apr 12;88(1-2):117-26
11474541
Anaesthesia. 2007 Oct;62(10):989-93
17845649
Z Exp Angew Psychol. 1989;36(2):181-98
2773524
Psychophysiology. 2010 Jul 1;47(4):647-58
20230512
Psychophysiology. 1985 Mar;22(2):138-46
3991841
J Neurosci Methods. 2005 Jul 15;146(1):116-23
15935228
J Neurophysiol. 1998 Apr;79(4):1653-60
9535936
J Neurosci Methods. 2009 Nov 15;184(2):224-34
19686778
Psychophysiology. 1994 Mar;31(2):196-200
8153256
Psychophysiology. 1985 Jul;22(4):417-26
4023153
J Physiol. 1999 Apr 1;516 ( Pt 1):303-14
10066943
Clin Neurophysiol. 2006 Nov;117(11):2357-84
16904937
Z Psychol Z Angew Psychol. 1957 Dec;161(3-4):282-91
13558460
Psychophysiology. 1999 Sep;36(5):543-51
10442022
Prog Neuropsychopharmacol Biol Psychiatry. 2004 Aug;28(5):913-22
15363614
Acta Physiol Scand. 1992 Nov;146(3):385-92
1481693
J Auton Nerv Syst. 1998 Apr 30;69(2-3):83-8
9696262
Curr Opin Anaesthesiol. 2008 Dec;21(6):796-804
18997532
Clin Neurophysiol. 2003 Nov;114(11):2172-80
14580616
Neuropediatrics. 2000 Jun;31(3):148-50
10963103
J Physiol. 1980 Sep;306:537-52
7463376
Psychophysiology. 1981 Jan;18(1):17-25
7465724
J Abnorm Psychol. 1999 May;108(2):299-306
10369040
J Neurosci. 1994 Nov;14(11 Pt 2):6825-33
7525893
Auton Neurosci. 2002 Jan 10;95(1-2):146-59
11871781
Psychophysiology. 1981 May;18(3):268-70
7291444
Acta Physiol Scand. 1992 Oct;146(2):261-9
1442139
Int J Psychophysiol. 1993 Jan;14(1):75-80
8432681
Biol Psychiatry. 1999 Jan 1;45(1):127-35
9894584
Pediatr Int. 1999 Dec;41(6):631-6
10618882
J Comp Physiol Psychol. 1969 Jan;67(1):77-82
5787814
Int J Psychophysiol. 1997 Feb;25(2):97-109
9101335
J Auton Nerv Syst. 1996 Dec 14;61(3):277-86
8988486
Psychophysiology. 1986 Sep;23(5):567-89
3809364
Psychophysiology. 1981 May;18(3):232-9
7291438