Mirror neurons are involved in imitation of habitual behaviors. To increase understanding of the theory of mirror neurons and the default mode network, brain activation was explored in 11 healthy adult volunteers who did or did not have a habit of putting their hands together as if praying. Magnetoencephalography (MEG) data were recorded while the participants simultaneously smelled an odor in two kinds of incenses outdoor and/or while they moved to putting their hands together. A magnetoencephalographic contour map of the recorded findings was drawn and an estimated current dipole (ECD) was set. Regardless of a habit of putting their hands together or not, the inner lobe of the frontal area, anterior area in the temporal lobe, and F5 language area in the left frontal lobe and so on were specifically activated. We used cortisol value as an index of the stress state measured in every state (before and after smelling two different incenses outdoor). These experiments suggest that simultaneous smelling an incense outdoor and the behavior of putting their hands together increased the activity of these specific areas in the human brain due to mutual interactions and enhanced interactions.
Part of the book: Neuroimaging
The purpose of this study is to clarify the effects of the smelling “Zuko”, incense rubbing into hands and putting the hands for the human brain. From our previous studies on the smelling an incense odor with putting the hands together, the activities of “Zuko” incense are also considered to be promoted as the imitation of habitual behaviors by mirror neurons and the default mode network in our brain. In this experiment, the brain activation was measured in 10 healthy adult volunteers who did or did not have a habit of putting their hands together and magneto-encephalography (MEG) data were recorded while the participants smelled “Zuko” incense and putting their hands together. The peak response of MEG P300m for the “auditory odd-ball paradigm” was also measured for a rare auditory pulse stimulation and was more enforced by the smelling “Zuko” incense. We used alpha-amylase value as an index of the stress state measured in the state before and after smelling “Zuko” and MEG experiments. From these results it can be considered that smelling “Zuko” promote the excitation of the higher activities to human brain and make changing the specific brain areas such as OFC, F5 and V1.
Part of the book: Sino-Nasal and Olfactory System Disorders