Table 1.
A summary of the recent literature regarding GSR measurement places and physiological sensors.
| Research Work | Focus of Research | Devices Used | Position Measured | Comparison Method |
|---|---|---|---|---|
| Anusha et al. [25] | Optimal dry electrode location for GSR measurement | Analog Devices®: Ag/AgCl, stainless steel, silver, brass, and gold electrodes | Ventral and dorsal surfaces of the wrist | Pearson’s correlation coefficient |
| Kushky et al. [26] | Correlation between palmar and non-palmar GSR measurement sites | Flexcomp Infiniti physiological monitoring and data acquisition unit | Fingers, toes, and arch of the foot | Hierarchical linear model (random effect model) |
| Kappeler-Setz et al. [27] | Correlation between GSR measurements of the feet and fingers | Emotion Board | Index and middle finger and the inner side of the foot | Pearson’s correlation coefficient |
| Borrego et al. [28] | Reliability measures of the galvanic skin response of a wristband against laboratory-grade equipment | Empatica E4 and Refa System | Wrist and fingers | Spearman’s rank correlation coefficient |
| Kutt et al. [29] | Comparison of heart rate and GSR quality signals among wearable devices | Microsoft Band 2, Empatica E4, Health Sensor Platform, BITalino, and a Polar H6 as a reference | Wrist and fingers | Pearson’s correlation coefficient |
| Sagl et al. [30] | Quantifying the accuracy of low-cost wearable devices in comparison to high-quality laboratory sensors | Wearable Zephyr BioHarness 3, Empatica E4, and VarioPort laboratory recorder bioelectric signals | Hand palm vs. wrist | Pearson’s r correlation, Maximal information coefficient (MIC), local time series similarities, Fréchet distance, and dynamic time warping (DTW) |
| Poh et al. [31] | Studying continuous GSR measurement in different places outside of a laboratory setting | Flexcomp physiological monitoring and a wrist-worn GSR sensor module developed by the authors | Palmar and distal forearm | Pearson’s correlation coefficients |
| Kasos et al. [32] | Assessing the similarities and differences in EDA measured at alternate and traditional anatomical sites | Obimon EDA | Fingers, feet, wrists, shoulders, and calves | Pearson’s correlation coefficient |