A time series analysis to investigate the effect of inhalation of aldehyde C10 on the human EEG activity

Abstract

Abstract Introduction Decanal (C10) is an important aldehyde, extensively used to enhance floral and citrus notes in various perfumery products. It is well-known that the human electroencephalographic (EEG) activity is highly susceptible to change due to the exposure of fragrances. However, the EEG findings exhibit non-stationary behavior in terms of analysis and recording time. Hence, the present study aimed to investigate the effect of inhalation of aldehyde C10 on the human EEG activity with respect to time series analysis. Methods Twenty healthy volunteers (10 men and 10 women) participated in the EEG study. The EEG data were recorded from 8 channels according to the International 10–20 System. The EEG readings were analyzed for every second by splitting the total 30\u2009s data during the no odor and C10 odor exposures. Results The exposure of C10 odor produced significant changes (p\u2009 Conclusion Our data suggest that the EEG activity of C10 odor is highly unstable in the time series analysis, thereby analysis time could play a key role in the EEG response to olfactory stimulation.