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Changes in respiration during emotional stress

文献类型: 会议论文

第一作者: Alberto Hernando

作者: Alberto Hernando 1 ; Jesús Lázaro 1 ; Adriana Arza 2 ; Jorge Mario Garzón 2 ; Eduardo Gil 1 ; Pablo Laguna 1 ; Jordi Aguiló 2 ; Raquel Bailón 1 ;

作者机构: 1.BSICoS Group, Aragón Institute of Engineering Research (I3A), IIS Aragón, University of Zaragoza, Zaragoza, Spain

2.CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Zaragoza, Spain

关键词: anticipation;stress;compute

会议名称: Computing in Cardiology Conference

主办单位:

页码: 1005-1008

摘要: In this work, we analyze changes in respiration during emotional stress induced by a modification of the Trier Social Stress Test. The following stages in the test were analyzed: the pre-relaxing stage, the story telling stage, the anticipation of stress and the video exposition stage. Respiration signal is recorded during the whole test using a thoracic band. Power spectral density (PSD) of respiration is computed in running windows using a modification of Welch periodogram in which sufficiently peaked spectra are averaged. Then, respiratory frequency (F_R) is estimated from the "peaked-conditioned" averaged spectra. Results show that respiratory rate is significantly (p < 0.05 according to the Friedman test) higher, while a measure of spectral peakness and the percentage of PSD used to compute (F_R) is lower during stress stages than during relax. These results suggest that the respirationrelated parameters have potential discrimination power for stress level assessment.

分类号: TP399-53

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