Magnetic Field Distribution and Application of a Transcranial Magnetic Stimulation for Drug Addicts

This article introduces the property of magnetic field distribution and application of TMS developed by BJUT. The TMS generates time-varying magnetic field to stimulate the particular area in human brain. To obtain the distribution of magnetic density, we carried out survey by utilizing a Gauss meter, from three aspects: the distribution of magnetic density in axial direction, in radial direction and around the circle which hold the maximal magnetic density. Moreover, further experiment on heroin addicts is developed as an application of TMS. As a result of a course of treatment, the amplitude and latency of N270 generated by heroin addicts were decreased or shortened, and the brain function of heroin addicts changed as well. TMS, consequently, has effective therapy on heroin addicts.