Analytic measures for quantification of arousal from spontaneous skin conductance fluctuations
Cargando...
Fecha
2010-04
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Innt J Psychophysiol
Resumen
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.
Descripción
Palabras clave
SKIN CONDUCTANCE (SCR), GALVANIC SKIN RESPONSE (GSR), ELECTRODERMAL ACTIVITY (EDA), LINEAR TIMEINVARIANT FILTER (LTI), AREA UNDER THE CURVE (AUC)