Skin Admittance Measurement for Emotion Recognition: A Study over Frequency Sweep
1
Department of Information Engineering and Research Center “E. Piaggio“, School of Engineering, University of Pisa, 56122 Pisa, Italy
2
School of Computer Science and Electronic Engineering, University of Essex, Colchester CO4 3SQ, UK
*
Author to whom correspondence should be addressed.
Academic Editor: Mostafa Bassiouni
Electronics 2016, 5(3), 46; https://doi.org/10.3390/electronics5030046
Received: 26 June 2016
/
Revised: 28 July 2016
/
Accepted: 1 August 2016
/
Published: 4 August 2016
(This article belongs to the Special Issue Wearable Electronics and Embedded Computing Systems for Biomedical Applications)
The electrodermal activity (EDA) is a reliable physiological signal for monitoring the sympathetic nervous system. Several studies have demonstrated that EDA can be a source of effective markers for the assessment of emotional states in humans. There are two main methods for measuring EDA: endosomatic (internal electrical source) and exosomatic (external electrical source). Even though the exosomatic approach is the most widely used, differences between alternating current (AC) and direct current (DC) methods and their implication in the emotional assessment field have not yet been deeply investigated. This paper aims at investigating how the admittance contribution of EDA, studied at different frequency sources, affects the EDA statistical power in inferring on the subject’s arousing level (neutral or aroused). To this extent, 40 healthy subjects underwent visual affective elicitations, including neutral and arousing levels, while EDA was gathered through DC and AC sources from 0 to 1 kHz. Results concern the accuracy of an automatic, EDA feature-based arousal recognition system for each frequency source. We show how the frequency of the external electrical source affects the accuracy of arousal recognition. This suggests a role of skin susceptance in the study of affective stimuli through electrodermal response.
View Full-Text
Keywords:
electrodermal activity; wearable system; pattern recognittion; skin conductance; skin admittance
▼
Show Figures
Graphical abstract
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
MDPI and ACS Style
Greco, A.; Lanata, A.; Citi, L.; Vanello, N.; Valenza, G.; Scilingo, E.P. Skin Admittance Measurement for Emotion Recognition: A Study over Frequency Sweep. Electronics 2016, 5, 46. https://doi.org/10.3390/electronics5030046
AMA Style
Greco A, Lanata A, Citi L, Vanello N, Valenza G, Scilingo EP. Skin Admittance Measurement for Emotion Recognition: A Study over Frequency Sweep. Electronics. 2016; 5(3):46. https://doi.org/10.3390/electronics5030046
Chicago/Turabian StyleGreco, Alberto, Antonio Lanata, Luca Citi, Nicola Vanello, Gaetano Valenza, and Enzo Pasquale Scilingo. 2016. "Skin Admittance Measurement for Emotion Recognition: A Study over Frequency Sweep" Electronics 5, no. 3: 46. https://doi.org/10.3390/electronics5030046
Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
