The complexity of electrodermal activity is altered in mental cognitive stressors

Višňovcová, Zuzana; Mestanik, Michal; Gála, Michal; Mestanikova, Andrea; Tonhajzerová, Ingrid

doi:10.1016/j.compbiomed.2016.10.014

Cited by 38 publications

(29 citation statements)

References 37 publications

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“…This is in line with the expected activation of the SNS that is known to occur in response to this stressor. It is also in agreement with previous findings of an increase in EDA in response to the Stroop test in various study populations [35, 71-78]. We also found a statistically significant increase in EDA in response to orthostatic stress ( p < 0.001).…”

Section: Discussionsupporting

confidence: 82%

“…This, on its own, questions their ability to accurately represent the activity of the SNS, as both stressors were shown to cause sympathetic activation in this as well as in previous studies described in an earlier paragraph [35, 59, 71-73, 76-78]. The only purported sympathetic HRV marker that showed a statistically significant increase in response to both stressors was the LF spectral component when expressed as LF (nu).…”

Section: Discussionmentioning

confidence: 96%

“…Electrodermal activity (EDA) is a noninvasive peripheral marker of SNS activity that is widely used in psychophysiological research [35]. The eccrine sweat glands are exclusively controlled by sympathetic sudomotor cholinergic neurons, with no associated parasympathetic innervation.…”

Section: Introductionmentioning

confidence: 99%

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Validity of Commonly Used Heart Rate Variability Markers of Autonomic Nervous System Function

et al. 2019

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Background: Despite strong reservations regarding the validity of a number of heart rate variability (HRV) measures, these are still being used in recent studies. Aims: We aimed to compare the reactivity of ostensible sympathetic HRV markers (low and very low frequency [LF and VLF]) to that of electrodermal activity (EDA), an exclusively sympathetic marker, in response to cognitive and orthostatic stress, investigate the possibility of LF as a vagal-mediated marker of baroreflex modulation, and compare the ability of HRV markers of parasympathetic function (root mean square of successive differences [RMSSD] and high frequency [HF]) to quantify vagal reactivity to cognitive and orthostatic stress. Results: None of the purported sympathetic HRV markers displayed a reactivity that correlated with electrodermal reactivity. LF (ms²) reactivity correlated with the reactivity of both RMSSD and HF during baroreflex modulation. RMSSD and HF indexed the reactivity of the parasympathetic nervous system under conditions of normal breathing; however, RMSSD performed better as a marker of vagal activity when the task required breathing changes. Conclusions: Neither LF (in ms² or normalized units [nu]) nor VLF represent cardiac sympathetic modulation of the heart. LF (ms²) may reflect vagally mediated baroreflex cardiac effects. HRV linear analysis therefore appears to be restricted to the determination of vagal influences on heart rate. With regard to HRV parasympathetic markers, this study supports the suggestion that HRV frequency domain analyses, such as HF, should not be used as an index of vagal activity in study tasks where verbal responses are required, as these responses may induce respiratory changes great enough to distort HF power.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 96%

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Validity of Commonly Used Heart Rate Variability Markers of Autonomic Nervous System Function

et al. 2019

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“…Electrodermal activity (EDA), also known as galvanic skin response, refers to the changes in conductance of the skin due to sweat glands being activated by the sympathetic nervous system (Parnandi & Gutierrez-Osuna, 2017). Changes in EDA are associated both with neural measures of arousal (Critchley, Eccles, & Garfinkel, 2013) and with psychological stress (Salafi & Kah, 2015;Visnovcova, Mestanik, Gala, Mestanikova, & Tonhajzerova, 2016). There are two primary characteristics of EDA: Skin conductance level (SCL) is a baseline measure of sympathetic arousal, while skin conductance response (SCR) refers to momentary peaks in the signal which occur in response to episodic stressors such as startle events or affective arousal (Parnandi & Gutierrez-Osuna, 2017).…”

Section: Electrodermal Activity Biofeedbackmentioning

confidence: 99%

Wearable devices as adjuncts in the treatment of anxiety‐related symptoms: A narrative review of five device modalities and implications for clinical practice.

Hunkin

King

Zajac

2019

Clinical Psychology: Science and Practice

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Anxiety disorders are a major public health problem, and a range of wearable technological devices for addressing the somatic symptoms of anxiety are increasingly available. This narrative review summarizes five distinct modalities underlying wearable devices and investigates clinical implications for managing clients using such devices. The literature suggests potential benefits of heart rate variability (HRV) biofeedback devices, while other modalities (aided meditation, false physiological feedback, electrodermal biofeedback, and respiration biofeedback) are less supported. High‐quality research on the efficacy of such devices is also lacking, particularly in clinical populations. Wearables could offer potential benefits, but may be contraindicated in some cases. Collaborative use of clinical evaluation tools, such as the American Psychiatric Association's application evaluation model, can aid in shared decision‐making about device use.

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“…Few and relatively recent studies in the literature analyze the complexity of the EDA, although such signal was known to have a special ability to capture human affect and was particularly proven to reflect mental stress during real‐world driving and even during car races . For instance, Visnovcova et al evaluated the EDA changes in response to two cognitive stressors: stroop color word and arithmetic tests based on a nonlinear analysis using indices that describe irregularity of the sympathetic nervous system. These studies concluded that the EDA nonlinear characteristics can provide relevant information about stress‐related complex sympathetic regulation.…”

Section: Introductionmentioning

confidence: 99%

Self‐similarity analysis of vehicle driver's electrodermal activity

Haouij

Ghozi

Poggi

et al. 2019

Quality & Reliability Eng

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This paper characterizes stress levels via a self-similarity analysis of the electrodermal activity (EDA) collected in a real-world driving context. To characterize the EDA richness over scales, the fractional Brownian motion (FBM) process and its corresponding exponent H, estimated via a wavelet-based approach, are used. Specifically, an automatic scale range selection is proposed in order to detect the linearity in a log scale diagram. The procedure is applied to the EDA signals, from the open database drivedb, originally captured on the foot and the hand of the drivers during a real-world driving experiment, designed to evoke different levels of arousal and stress. The estimated Hurst exponent H offers a distinction in stress levels when driving in highway versus city, with a reference to restful state of minimal stress level. Specifically, the estimated H values tend to decrease when the driving environmental complexity increases. In addition, the estimated H values on the foot EDA signals allow a better characterization of the driving task than that of hand EDA. The self-similarity analysis was applied to various physiological signals in literature but not to the EDA so far, a signal which was found to correlate most with human affect. The proposed analysis could be useful in real-time monitoring of stress levels in urban driving spaces, among other applications. KEYWORDSelectrodermal activity, Hurst exponent estimation, real-world driving, self-similarity, stress tracking, wavelet-based method 1502

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The complexity of electrodermal activity is altered in mental cognitive stressors

Cited by 38 publications

References 37 publications

Validity of Commonly Used Heart Rate Variability Markers of Autonomic Nervous System Function

Validity of Commonly Used Heart Rate Variability Markers of Autonomic Nervous System Function

Wearable devices as adjuncts in the treatment of anxiety‐related symptoms: A narrative review of five device modalities and implications for clinical practice.

Self‐similarity analysis of vehicle driver's electrodermal activity

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