E-ISSN 2231-3206 | ISSN 2320-4672
 

Original Research 


Bilateral electrodermal activity and asymmetric responses in normal healthy individuals

Sumitra LK, Swetha M.

Abstract
Background: Electrodermal activity (EDA) or galvanic skin response (GSR) is the change in the electrical properties of the skin which is used to measure the sympathetic activity and response. When a painful stimulus is applied, it elicits a sympathetic response by increasing sweat gland activity that, in turn, increases the skin conductance. Central nervous system plays important role in regulating sympathetic activity.

Aims and Objectives: The objectives of this study were as follows: (1) To evaluate the electrodermal responses (EDR) in dominant and non-dominant hand; (2) to compare the EDRs in dominant and non-dominant hand.

Materials and Methods: The study was done among MBBS students of age 18–23 years in physiology research laboratory and EDA values were analyzed using BIOCHART software (version1.0) through physiograph. EDA was recorded using skin surface electrodes. Pulse and blood pressure were monitored before and after immersion in cold water. Baseline recording, recording after immersion of hand in cold water, and recovery recording of GSR were noted in dominant and non-dominant hands.

Results: The mean GSR, baseline value, and the GSR after cold stimulation were significantly more in non-dominant hand compared to dominant hand.

Conclusion: Our findings show an increased sympathetic activity in non-dominant hand in response to cold stimulation compared to dominant hand.

Key words: Galvanic Skin Response; Sympathetic Nervous System; Electrodermal Activity


 
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Pubmed Style

LK S, M S. Bilateral electrodermal activity and asymmetric responses in normal healthy individuals. Natl J Physiol Pharm Pharmacol. 2023; 13(1): 63-66. doi:10.5455/njppp.2023.13.04157202228052022


Web Style

LK S, M S. Bilateral electrodermal activity and asymmetric responses in normal healthy individuals. https://www.njppp.com/?mno=7618 [Access: February 01, 2023]. doi:10.5455/njppp.2023.13.04157202228052022


AMA (American Medical Association) Style

LK S, M S. Bilateral electrodermal activity and asymmetric responses in normal healthy individuals. Natl J Physiol Pharm Pharmacol. 2023; 13(1): 63-66. doi:10.5455/njppp.2023.13.04157202228052022



Vancouver/ICMJE Style

LK S, M S. Bilateral electrodermal activity and asymmetric responses in normal healthy individuals. Natl J Physiol Pharm Pharmacol. (2023), [cited February 01, 2023]; 13(1): 63-66. doi:10.5455/njppp.2023.13.04157202228052022



Harvard Style

LK, S. & M, . S. (2023) Bilateral electrodermal activity and asymmetric responses in normal healthy individuals. Natl J Physiol Pharm Pharmacol, 13 (1), 63-66. doi:10.5455/njppp.2023.13.04157202228052022



Turabian Style

LK, Sumitra, and Swetha M. 2023. Bilateral electrodermal activity and asymmetric responses in normal healthy individuals. National Journal of Physiology, Pharmacy and Pharmacology, 13 (1), 63-66. doi:10.5455/njppp.2023.13.04157202228052022



Chicago Style

LK, Sumitra, and Swetha M. "Bilateral electrodermal activity and asymmetric responses in normal healthy individuals." National Journal of Physiology, Pharmacy and Pharmacology 13 (2023), 63-66. doi:10.5455/njppp.2023.13.04157202228052022



MLA (The Modern Language Association) Style

LK, Sumitra, and Swetha M. "Bilateral electrodermal activity and asymmetric responses in normal healthy individuals." National Journal of Physiology, Pharmacy and Pharmacology 13.1 (2023), 63-66. Print. doi:10.5455/njppp.2023.13.04157202228052022



APA (American Psychological Association) Style

LK, S. & M, . S. (2023) Bilateral electrodermal activity and asymmetric responses in normal healthy individuals. National Journal of Physiology, Pharmacy and Pharmacology, 13 (1), 63-66. doi:10.5455/njppp.2023.13.04157202228052022