title: Towards mental stress detection using wearable physiological sensors.
abstract: Early mental stress detection can prevent many stress related health problems. This study aimed at using a wearable sensor system to measure physiological signals and detect mental stress. Three different stress conditions were presented to a healthy subject group. During the procedure, ECG, respiration, skin conductance, and EMG of the trapezius muscles were recorded. In total, 19 physiological features were calculated from these signals. After normalization of the feature values and analysis of correlations among these features, a subset of 9 features was selected for further analysis. Principal component analysis reduced these 9 features to 7 principal components (PCs). Using these PCs and different classifiers, a consistent classification accuracy between stress and non stress conditions of almost 80% was found. This suggests that a promising feature subset was found for future development of a personalized stress monitor.
authors.affiliation: Faculty of Electrical Engineering, Mathematics and Computer Science, University of Twente, Drienerlolaan 5, 7522 NB En-schede, The Netherlands. Jacqueline.Wijsman@imec-nl.nl
authors.forename: Jacqueline
authors.initials: J
authors.lastname: Wijsman
authors.forename: Bernard
authors.initials: B
authors.lastname: Grundlehner
authors.forename: Hao
authors.initials: H
authors.lastname: Liu
authors.forename: Hermie
authors.initials: H
authors.lastname: Hermens
authors.forename: Julien
authors.initials: J
authors.lastname: Penders
mesh_terms: D000328:Adult; D003936:Diagnosis, Computer-Assisted / Q000379:methods; D004576:Electromyography / Q000379:methods*; D005260:Female; D005712:Galvanic Skin Response; D006339:Heart Rate; D006801:Humans; D008297:Male; D018670:Monitoring, Ambulatory / Q000295:instrumentation*; D015203:Reproducibility of Results; D056152:Respiratory Rate; D012680:Sensitivity and Specificity; D013315:Stress, Psychological / Q000175:diagnosis* / Q000503:physiopathology*; D014159:Transducers