Changes in respiration during emotional stress

Hernando, Alberto ; Lázaro, Jesús (Universidad de Zaragoza) ; Arza, Adriana ; Garzón, Jorge Mario ; Gil, Edurado (Universidad de Zaragoza) ; Laguna, Pablo. (Universidad de Zaragoza) ; Aguiló, Jordi ; Bailón, Raquel (Universidad de Zaragoza)

Resumen: 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 (FR) 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 (FR) is lower during stress stages than during relax. These results suggest that the respiration-related parameters have potential discrimination power for stress level assessment.

Idioma: Inglés

DOI: 10.1109/CIC.2015.7411083

Año: 2016

Publicado en: Computing in Cardiology 42 (2016), 1005-1008
ISSN: 2325-8861

Financiación: info:eu-repo/grantAgreement/ES/FIS/PI12-00514
Financiación: info:eu-repo/grantAgreement/ES/MINECO/TIN2014-5356-R
Financiación: info:eu-repo/grantAgreement/ES/UZ/PIFUZ2011-TRCA-003
Financiación: info:eu-repo/grantAgreement/ES/UZ/UZ2014-TEC-01

Tipo y forma: Article (Published version)

Área (Departamento): Área Ingen.Sistemas y Automát. (Dpto. Informát.Ingenie.Sistms.)
Área (Departamento): Área Teoría Señal y Comunicac. (Dpto. Ingeniería Electrón.Com.)