Towards an objective measurement of emotional stress

Rey, Jorge Mario Garzon; Arza, Adriana; Aguiló, Jordi

doi:10.1109/ibersensor.2014.6995559

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…The proposed work involves experimental measurements of 40 students, from the Autonomous University of Barcelona, in different stress states induced through two sessions described in [9] in which the same set of measurements are applied. During the first session, a deep relaxation state (RS) is induced by using autogenous techniques.…”

Section: Methodsmentioning

confidence: 99%

Nonlinear parameter for nonlinear phenomenon: acute emotional stress

2017

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To study acute emotional stress, a linear approach may not correspond to the non-deterministic variation due to aetiology of the stress phenomenon itself. Besides that, assuming a linear model such as classic heart rate variability analysis usually has high computational cost and high artefact dependency. A nonlinear approach based on Chaos theory using Higuchi fractal dimension (HFD) is presented to define a measurement methodology for acute emotional stress. HFD was computed for a set of electrophysiological signals recorded during relax and stress states of an ad hoc experiment. Results show that for most of the signals HFD is able to differentiate among relax and stress states. This approach applied to electrocardiogram signals is not affected by the sample rate and does not need pre-process filtering. Photo-plethysmography data is only significant in the highest stress state. So, it can be used to evaluate stress levels higher than those had in this experiment.

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Section: Methodsmentioning

confidence: 99%

Nonlinear parameter for nonlinear phenomenon: acute emotional stress

2017

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“…An increase in cortisol secretion acts on the immune system, nervous system, and metabolic system, leading to stress reactions such as a decrease in immune function and an increase in heart rate and blood glucose level (Toshihiro et al, 2008). Although salivary cortisol level measurement is the golden standard of objective stress level measurement, analysis using heart rate variability features, standardized questionnaires, and physiological signals have been proposed (Cohen et al, 1983;Crosswell & Lockwood, 2020;Dickerson and Kemeny, 2004;Kim et al, 2018;Nagasawa et al, 2020;Rey et al, 2014;Solomon et al, 1987). One of the physiological signals for measuring stress level was functional near-infrared spectroscopy (fNIRS).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of olive oil effects on human stress response by measuring cerebral blood flow

Mitsukura

Sumali

Nara

et al. 2021

Food Science & Nutrition

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In this paper, we evaluated the effects of olive oil on human's stress level. In recent years, mental stress from harsh working environment have been causing serious problems to human health, both mentally and physically. Symptoms of stress may include feelings of worthlessness, agitation, anxiety, lethargy, insomnia, and behavioral changes. Additionally, the harsh working environments may cause the workers to adopt unhealthy dietary habits, contributing to the health issue. On the other hand, olive oil has been known to provide stress‐relieving effects both by ingestion and by inhaling the scent. Here, we examined the effects of extravirgin olive oil ingestion for mitigating stress from deskwork. Three best‐selling extravirgin olive oil in Japan were tested, and typing task was selected to emulate deskwork situation. Near‐infrared spectroscopy (NIRS) is utilized in this study to visualize the response in brain via cerebral blood flow analysis and to measure participants’ stress level. Statistical analysis showed that the stress levels were lower during the olive oil ingestion experiment compared to no‐oil experiment, even when measured one hour after the ingestion.

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Towards an objective measurement of emotional stress

Cited by 2 publications

References 6 publications

Nonlinear parameter for nonlinear phenomenon: acute emotional stress

Nonlinear parameter for nonlinear phenomenon: acute emotional stress

Evaluation of olive oil effects on human stress response by measuring cerebral blood flow

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