Stress-induced alterations of left-right electrodermal activity coupling indexed by pointwise transinformation

In this study, we tested the hypothesis that experimental stress induces a specific change of left-right electrodermal activity (EDA) coupling pattern, as indexed by pointwise transinformation (PTI). Further, we hypothesized that this change is associated with scores on psychometric measures of the...

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Bibliographic Details
Published inPhysiological research Vol. 62; no. 6; pp. 711 - 719
Main Authors Světlák, M, Bob, P, Roman, R, Ježek, S, Damborská, A, Chládek, J, Shaw, D J, Kukleta, M
Format Journal Article
LanguageEnglish
Published Czech Republic Institute of Physiology 01.01.2013
Subjects
Adult
Algorithms
Asymmetry
Correlation analysis
Female
Galvanic Skin Response
Gender differences
Humans
Lie Detection
Male
Metabolic disorders
Psychometrics - methods
Psychopathology
Regulation
Reproducibility of Results
Sensitivity and Specificity
Skin - physiopathology
Stress, Psychological - diagnosis
Stress, Psychological - physiopathology
Studies
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Summary:In this study, we tested the hypothesis that experimental stress induces a specific change of left-right electrodermal activity (EDA) coupling pattern, as indexed by pointwise transinformation (PTI). Further, we hypothesized that this change is associated with scores on psychometric measures of the chronic stress-related psychopathology. Ninety-nine university students underwent bilateral measurement of EDA during rest and stress-inducing Stroop test and completed a battery of self-report measures of chronic stress-related psychopathology. A significant decrease in the mean PTI value was the prevalent response to the stress conditions. No association between chronic stress and PTI was found. Raw scores of psychometric measures of stress-related psychopathology had no effect on either the resting levels of PTI or the amount of stress-induced PTI change. In summary, acute stress alters the level of coupling pattern of cortico-autonomic influences on the left and right sympathetic pathways to the palmar sweat glands. Different results obtained using the PTI, EDA laterality coefficient, and skin conductance level also show that the PTI algorithm represents a new analytical approach to EDA asymmetry description.
ISSN:0862-8408
1802-9973
DOI:10.33549/physiolres.932589