Electrodermal Activity: Simultaneous Recordings

Aldosky, Haval Y. Yacoob; Bari, Dindar S.

doi:10.5772/intechopen.89025

Cited by 6 publications

(3 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 The latter can be split into two components: tonic, which measures absolute SC, and phasic, which measures skin response to external stimuli. 2 Skin response is the result of SG activity, which depends on the sweat constituents and SG morphology like sweat duct length, the crosssectional area of SG. Apart from this, the number of active SG also contributes for SC.…”

Section: Introductionmentioning

confidence: 99%

Electrodermal signal analysis using continuous wavelet transform as a tool for quantification of sweat gland activity in diabetic kidney disease

Singaram¹,

Ramakrishnan²,

Soundararajan

2023

Proc Inst Mech Eng H

View full text Add to dashboard Cite

Sympathetic innervation of the sweat gland (SG) manifests itself electrically as electrodermal activity (EDA), which can be utilized to measure sudomotor function. Since SG exhibits similarities in structure and function with kidneys, quantification of SG activity is attempted through EDA signals. A methodology is developed with electrical stimulation, sampling frequency and signal processing algorithm. One hundred twenty volunteers participated in this study belonging to controls, diabetes, diabetic nephropathy, and diabetic neuropathy. The magnitude and time duration of stimuli is arrived by trial and error in such a way it does not influence controls but triggers SG activity in other Groups. This methodology leads to a distinct EDA signal pattern with changes in frequency and amplitude. The continuous wavelet transform depicts a scalogram to retrieve this information. Further, to distinguish between Groups, time average spectrums are plotted and mean relative energy (MRE) is computed. Results demonstrate high energy value in controls, and it gradually decreases in other Groups indicating a decline in SG activity on diabetes prognosis. The correlation for the acquired results was determined to be 0.99 when compared to the standard lab procedure. Furthermore, Cohen’s d value, which is less than 0.25 for all Groups indicating the minimal effect size. Hence the obtained result is validated and statistically analyzed for individual variations. Thus this has the potential to get transformed into a device and could prevent diabetic kidney disease.

show abstract

Section: Introductionmentioning

confidence: 99%

Electrodermal signal analysis using continuous wavelet transform as a tool for quantification of sweat gland activity in diabetic kidney disease

Singaram¹,

Ramakrishnan²,

Soundararajan

2023

Proc Inst Mech Eng H

View full text Add to dashboard Cite

show abstract

“…Sympathetic skin response (SSR) or electrodermal activity (EDA) projects the results of attention, emotional and incentive procedure inside the central nervous system that affects the body. [ 10 ] SSR is examined as modify in the skin’s strength to a little electrical flow or as distinction in electrical potential among dissimilar parts of the skin. It measures neutrally mediated effects on the skin’s sweat gland permeability.…”

Section: Introductionmentioning

confidence: 99%

Effect of Boron on Sympathetic Skin Response in Rats

Boyuk,

Dolu,

Aksoy

2023

Indian Journal of Dermatology

View full text Add to dashboard Cite

Background: Boron effects on reproduction and growth have been extensively studied in animals. Electrodermal activity (EDA) reflects the activity of eccrine sweat glands stimulated by the release of acetylcholine from sympathetic nerves. Aim: In the presen study, it was aimed to examine the effect of boron, which was turned into cream, on sweat glands. Methods: A cream form mixed with thyme oil was prepared for EDA recording. Our groups were formed as EDA recording gel (Group 1), cream with thyme oil (Group 2), cream containing 10% boron (Group 3) and cream containing 30% boron (Group 4). In each group, 3 months old, 10 male rats were used, and creams were applied to the soles of the hind extremities of the rats, EDA was recorded from this region after half an hour, and skin conductivity levels (SCL) were recorded as tonic (at rest) and phasic (with auditory sound stimulation). Results: EDA results recorded in the morning were analysed with tonic and phasic recordings. In the morning SCL measurements, tonic SCL value of Group 4 was higher than the other groups (P < 0.001). Although the phasic SCL value was measured, it was significantly higher in Group 4 than in all groups (P < 0.0s). Conclusion: EDA measurements showed that boron increased sweat gland activity by increasing sympathetic nerve activity.

show abstract

“…In addition, once a controlled AC current or voltage is applied to the skin, it is possible to measure skin admittance or skin impedance and through which SC and SS can be obtained. Applying a controlled DC current or voltage provides measurement of the passive electrical properties of skin (SC or skin resistance) (Aldosky and Bari 2019). Compared to measurement of exosomatic properties, measurement of endosomatic SP is the simpler approach; however, endosomatic SP responses are increased both in positive and negative directions and can be monophasic positive and negative, biphasic, or triphasic, which complicate the process of scoring and interpretation of endosomatic results (Boucsein 2012).…”

Section: Introductionmentioning

confidence: 99%

Influence of ambient temperature on tonic and phasic electrodermal activity components

2022

View full text Add to dashboard Cite

Objective. Electrodermal activity (EDA) is a reliable indicator for variations in the skin electrical properties attributed to sympathetic nerve system activity. EDA recordings can be influenced by various internal and external factors including environmental ones. Ambient temperature can be considered as one of the possible factors which might influence EDA recordings. Hence, this study aimed to precisely investigate influence of ambient temperature on tonic and phasic EDA components by employing a new EDA measurement technique, which depends on simultaneously recording of several EDA parameters. Approach. Tonic and phasic EDA components during three different ambient temperature levels were recorded from 36 healthy participants. In addition, for evoking electrodermal responses, participants were exposed to cognitive, visual and breathing external stimuli. Main results. Significant effects of temperature on tonic skin conductance (SC), skin susceptance (SS) and skin potential (SP) were obtained, whereas such significant effects were not observed with phasic SC, SS and SP. Tonic EDA parameters were increased as a function of temperature, but changes in phasic component were fluctuating. Significance. This should mean that, keeping recording of tonic EDA component in normal room temperature is highly crucial, but for recording or analysis of phasic component it is not important as they are more robust in this context. This is important in applications of EDA instruments, particularly in wearable devices where environmental temperature typically cannot be controlled.

show abstract

Electrodermal Activity: Simultaneous Recordings

Cited by 6 publications

References 49 publications

Electrodermal signal analysis using continuous wavelet transform as a tool for quantification of sweat gland activity in diabetic kidney disease

Electrodermal signal analysis using continuous wavelet transform as a tool for quantification of sweat gland activity in diabetic kidney disease

Effect of Boron on Sympathetic Skin Response in Rats

Influence of ambient temperature on tonic and phasic electrodermal activity components

Contact Info

Product

Resources

About