EEG Metrics Evaluation in Simultaneous EEG-fMRI Olfactory Experiment
This work analyses the statistical significant changes in the EEG signal after the supply of olfactory stimuli during simultaneous EEG/fMRI olfactory experiments. Different spectral parameters are evaluated including the spectral power in different EEG bands of interest and spectral morphology measures, such as median frequency or statistical complexity. Beta 2 spectral power increase in frontal, midline and parietal areas has been found to be very significant (p < 0.00000840) when an odorant of any type is supplied to a subject in this experiment. Also, this increase has been found to be more significant for trigeminal than for natural odorants.
Keywordsolfaction EEG power spectral density median frequency Euclidean distance Shannon entropy statistical complexity
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