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Article

Correlation Analysis of Different Measurement Places of Galvanic Skin Response in Test Groups Facing Pleasant and Unpleasant Stimuli

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Department of Productivity and Innovation, Universidad de la Costa, 080 002 Barranquilla, Colombia
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Department of Computer Science, Electrical and Space Engineering, Luleå Tekniska Universitet, 971 87 Luleå, Sweden
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Department of Computer Science and Electronics, Universidad de la Costa, 080 002 Barranquilla, Colombia
*
Authors to whom correspondence should be addressed.
Academic Editors: Nilanjan Sarkar, Zhi Zheng and Ahmed Toaha Mobashsher
Sensors 2021, 21(12), 4210; https://doi.org/10.3390/s21124210
Received: 22 April 2021 / Revised: 13 June 2021 / Accepted: 15 June 2021 / Published: 19 June 2021
(This article belongs to the Special Issue Emotion Recognition in Human-Machine Interaction)
The galvanic skin response (GSR; also widely known as electrodermal activity (EDA)) is a signal for stress-related studies. Given the sparsity of studies related to the GSR and the variety of devices, this study was conducted at the Human Health Activity Laboratory (H2AL) with 17 healthy subjects to determine the variability in the detection of changes in the galvanic skin response among a test group with heterogeneous respondents facing pleasant and unpleasant stimuli, correlating the GSR biosignals measured from different body sites. We experimented with the right and left wrist, left fingers, the inner side of the right foot using Shimmer3GSR and Empatica E4 sensors. The results indicated the most promising homogeneous places for measuring the GSR, namely, the left fingers and right foot. The results also suggested that due to a significantly strong correlation among the inner side of the right foot and the left fingers, as well as the moderate correlations with the right and left wrists, the foot may be a suitable place to homogenously measure a GSR signal in a test group. We also discuss some possible causes of weak and negative correlations from anomalies detected in the raw data possibly related to the sensors or the test group, which may be considered to develop robust emotion detection systems based on GRS biosignals. View Full-Text
Keywords: stress; wearable; sensor; physiological signals; galvanic skin response; GSR; electrodermal activity; EDA; pleasant and unpleasant stimuli; valence; correlation stress; wearable; sensor; physiological signals; galvanic skin response; GSR; electrodermal activity; EDA; pleasant and unpleasant stimuli; valence; correlation
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MDPI and ACS Style

Sanchez-Comas, A.; Synnes, K.; Molina-Estren, D.; Troncoso-Palacio, A.; Comas-González, Z. Correlation Analysis of Different Measurement Places of Galvanic Skin Response in Test Groups Facing Pleasant and Unpleasant Stimuli. Sensors 2021, 21, 4210. https://doi.org/10.3390/s21124210

AMA Style

Sanchez-Comas A, Synnes K, Molina-Estren D, Troncoso-Palacio A, Comas-González Z. Correlation Analysis of Different Measurement Places of Galvanic Skin Response in Test Groups Facing Pleasant and Unpleasant Stimuli. Sensors. 2021; 21(12):4210. https://doi.org/10.3390/s21124210

Chicago/Turabian Style

Sanchez-Comas, Andres, Kåre Synnes, Diego Molina-Estren, Alexander Troncoso-Palacio, and Zhoe Comas-González. 2021. "Correlation Analysis of Different Measurement Places of Galvanic Skin Response in Test Groups Facing Pleasant and Unpleasant Stimuli" Sensors 21, no. 12: 4210. https://doi.org/10.3390/s21124210

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