Abstract
This article studies the development and implementation of different electronic devices for measuring signals during stress situations, specifically in academic contexts in a student group of the Engineering Department at the University of Pamplona (Colombia). For the research’s development, devices for measuring physiological signals were used through a Galvanic Skin Response (GSR), the electrical response of the heart by using an electrocardiogram (ECG), the electrical activity produced by the upper trapezius muscle (EMG), and the development of an electronic nose system (E-nose) as a pilot study for the detection and identification of the Volatile Organic Compounds profiles emitted by the skin. The data gathering was taken during an online test (during the COVID-19 Pandemic), in which the aim was to measure the student’s stress state and then during the relaxation state after the exam period. Two algorithms were used for the data process, such as Linear Discriminant Analysis and Support Vector Machine through the Python software for the classification and differentiation of the assessment, achieving 100% of classification through GSR, 90% with the E-nose system proposed, 90% with the EMG system, and 88% success by using ECG, respectively.
Highlights
Engineering Department at the University of Pamplona (Colombia)
The initial measured value of the skin electric characteristic of each person is different for its physical f value of the skin electric characteristic of each person is different for its physical features, it was observed that during test, thewave-shape resultant wave-shape behavior it was observed that during the test, the the resultant behavior always tends logarithmic whenwhen the participant is in a relaxation tendstotobebe logarithmic the participant is in a state
Through the methodology proposed by using electronic devices, it was possible to get a high precision in the acquired data corresponding to every state, because these were used in a real situation in which the student was taking a virtual exam
Summary
Stress is considered as a physiological reaction in which different defense mechanisms interact during the confrontation of a situation or imminent threat that stimulates a fight or escape response of the body [1]. The academic stress comes out toward typical problems in the educational context, this can be a necessary and natural reaction for fulfilling the demands required and in which factors such as the academic overcharge, group projects, competitivity, lack of economic resources, and the deficient time organization take part [3]. Academic stress is associated with different negative results on the person, including deficiencies in academic performance, the daily homework, as well as detriment in physical and mental health when the person is often involved in stressful situations [5,6]. The quick spread of COVID-19 forced the closure of schools and universities all over the world, driving to a virtual form in the teaching method, continuing the educational
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