**2. Materials and methods**

#### **2.1 Materials**

In this MEG experiment, "Zuko" incense rubbing the powder into the hands is used.

These materials were produced especially by Nippon Kodo Co. Ltd. in Japan as follows. This new material is called as a code name "Nou-Katsu-Gassho-Ko" (in Japanese) including the following three basic materials:

*Smelling "Zuko": Incense Rubbing into the Hands and Smelling the Hands Activates… DOI: http://dx.doi.org/10.5772/intechopen.88987*

1.Agarwood (*Aquilaria agallocha*, *Aquilaria agallocha* Roxburgh)

2. Sandalwood (*Santalum album*, *Santalum album* L)

3.Benzoin (*Styrax tonkinensis*, *Styrax tonkinensis* Craib et Hortwick)
