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Device, system and method for determining an emotional state of a user

An emotion and device technology, applied in the field of wearable devices, can solve problems affecting decision-making, cognitive impairment, and increased risk-taking behavior, and achieve the effect of extending the length and underestimating the risk

Active Publication Date: 2020-01-07
KONINKLJIJKE PHILIPS NV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, high cortisol levels can be counterproductive as they induce cognitive impairment (Klaassen, E.B., de Groot, R.H., Evers, E.A., Nicolson, N.A., Veltman, D.J., & Jolles, J. (2013). Cortisol and induced cognitivefatigue : effects on memory activation in healthy males. Biological Psychology, 94(1), 167-174), and influences decision-making due to increased risk-taking behavior

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  • Device, system and method for determining an emotional state of a user

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Embodiment Construction

[0061] figure 1 Different neural and hormonal response pathways in response to stressors are shown. When subject 1 experiences stressor 2, there are distinct pathways for the neural and hormonal response to stress, the sympathetic adrenal medullary (SAM) pathway 101, which provides a rapid response, for example on the time scale of seconds, and down The Thalamo-Pituitary-Adrenal (HPA) pathway 102, which provides a slow response, for example on a minute time scale. The SAM pathway 101 results in (no)epinephrine / acetylcholine release 103 followed by a rapid neural action 104 after about 0.5 to 5 seconds. This rapid neurological effect can include increased heart rate, increased respiratory rate, increased blood pressure, increased blood sugar, dilated pupils, slowed digestive system, sweating (via acetylcholine), and more. On the other hand, the HPA pathway 102 leads to cortisol release 105 which causes slow hormonal effects 106, e.g. most pronounced after 20-30 minutes, such ...

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Abstract

The present invention relates to a device, system and method for determining an emotional state of a user based on emotion-induced cortisol estimation. The device comprises an interface (11) for obtaining a psychophysiological signal trace (22) indicative of one or more measured stimulus responses corresponding to a neural stress response; a processing unit (12) for processing the psychophysiological signal trace, wherein the processing unit is configured to determine one or more stimulus responses (29) in the psychophysiological signal trace (22); to determine a first contribution (91) to anestimated future cortisol level trace (93) based on the one or more determined stimulus responses (29) in the psychophysiological signal trace (22);to determine a second contribution (92) to the estimated future cortisol level trace (93) based on one or more anticipated future stimulus responses (96); and to determine an estimated future emotional state of the user based on said first and said second contribution to the estimated future cortisol level trace (93). The invention further relates to a corresponding computer program and a wearable device (30).

Description

technical field [0001] The present invention relates to an apparatus, system and method for determining a user's emotional state based on emotion-induced cortisol estimates. Furthermore, the invention relates to a corresponding computer program for carrying out the method. The invention also relates to a wearable device worn by a user comprising such a system for determining the user's emotional state based on an emotion-induced cortisol estimate. Background technique [0002] Stress is characterized by a series of bodily responses including increased heart rate, increased sweating leading to increased skin conductance, and release of the stress hormone cortisol (with a delay of approximately 20-30 minutes). These bodily responses contribute to an appropriate response to an actual or perceived stressor such as a threat, an accident, or any other stress-inducing stimulus or event. However, high cortisol levels can be counterproductive as they induce cognitive impairment (Kl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/16A61B5/053A61B5/00
CPCA61B5/0533A61B5/164A61B5/681A61B5/7275A61B5/7278G16H50/30G16H40/63G16H50/20G16H20/70G16H10/60A61B5/165
Inventor J·H·D·M·韦斯特林克M·奥沃克尔克
Owner KONINKLJIJKE PHILIPS NV
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