Time-Dependent Analysis of Human Neurophysiological Activities during an Ecological Olfactory Experience.
EDA
EEG
olfactory stimulation
physiological signals
signal processing
Journal
Brain sciences
ISSN: 2076-3425
Titre abrégé: Brain Sci
Pays: Switzerland
ID NLM: 101598646
Informations de publication
Date de publication:
25 Aug 2023
25 Aug 2023
Historique:
received:
17
07
2023
revised:
21
08
2023
accepted:
23
08
2023
medline:
28
9
2023
pubmed:
28
9
2023
entrez:
28
9
2023
Statut:
epublish
Résumé
It has been demonstrated that odors could affect humans at the psychophysiological level. Significant research has been done on odor perception and physiological mechanisms; however, this research was mainly performed in highly controlled conditions in order to highlight the perceptive phenomena and the correlated physiological responses in the time frame of milliseconds. The present study explored how human physiological activity evolves in response to different odor conditions during an ecological olfactory experience on a broader time scale (from 1 to 90 s). Two odors, vanilla and menthol, together with a control condition (blank) were employed as stimuli. Electroencephalographic (EEG) activity in four frequency bands of interest, theta, alpha, low beta, and high beta, and the electrodermal activity (EDA) of the skin conductance level and response (SCL and SCR) were investigated at five time points taken during: (i) the first ten seconds of exposure (short-term analysis) and (ii) throughout the entire exposure to each odor (90 s, long-term analysis). The results revealed significant interactions between the odor conditions and the time periods in the short-term analysis for the overall frontal activity in the theta (
Identifiants
pubmed: 37759843
pii: brainsci13091242
doi: 10.3390/brainsci13091242
pmc: PMC10526851
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : FITDRIVE: Monitoring devices for overall FITness of Drivers
ID : 953432
Organisme : The Smelling Brain: discovering the unconscious effect of the odours in industrial contexts
ID : Avvio alla ricerca 2022
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