Multiphysiological Shallow Neural Network-Based Mental Stress Detection System for Wearable Environment.


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Health problems related to stress are increasing globally and significantly affect the mental health and quality of life of human beings. Continuous suffering from stress may lead to serious psychological and physical health problems. But still, no effective and reliable stress detection methods are available. In this paper, a novel wearable device is presented to measure electroencephalogram (EEG) and electrocardiogram (ECG) simultaneously in a non-invasive approach. This system includes an analog front end (AFE) integrated with a machine learning-based digital backend (DBE) processor for mental stress prediction using only 3 electrodes. A PCB prototype is developed using the commercial off-the-shelf components. The developed prototype shows excellent noise performance of 0.1 mu Vrms and predicts the mental stress with a classification accuracy of 92.7%. The proposed system is lightweight and easily wearable (behind the ear). The data is acquired from 25 participants for different stress scenarios including the Arithmetic Test and Stroop Color Word Test. Different EEG and ECG based features combinations are used for the classification of stress conditions using a shallow neural network (SNN) classifier.
Electroencephalogram (EEG),Electrocardiogram (ECG),Heart Rate Variability (HRV),Analog Front End (AFE),Stress Estimation,Mental Arithmetic Test (MAT),Stroop Color Word Test (SCWT),Shallow Neural Network (SNN) Classifier
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