The Study Of The Effect Of The Low Frequency Electric Stimulation On The Brain Function Of The Healthy Adult Based On The FMRI

Objective:To observe the effect of the immediate effect of the alternating low frequency electric stimulation of flexor and extensor muscles on the brain function and cumulative effect, and to explore the effect of the brain function area in the brain function of healthy adults.Methods:12 healthy adults, male and female ratio 1:1. Low frequency group using low frequency electric stimulation of left upper limb, hand in the three points and Neiguan Ximen acupoint, flexor and extensor muscle alternating stimulation; Electroacupuncture group were treated with acupuncture at the left upper limb Waiguan, hands Zusanli, flat flat for diarrhea, DC electric stimulation, subjects in order to participate in the test group and control group test.Using 1.5T superconducting magnetic resonance scanner, blood oxygenation level dependent-functional magnetic resonance imaging (fMRI)-echo planar sequence scanning technology, module design, namely resting state task state to a resting state task state to a resting state task state, in the stage of the task state given electrical stimulation, each stage of acquisition 1 min, the acquisition process is 6 min 9 s.During the scan, the subjects need to close the eyes, remain awake, do not carry out the memory of the system, try to keep the head fixed fixed. During the pre experiment,2 subjects were activated in the whole brain area and were shed. The collected data by Matlab 6.5 platform of statistical parametric imaging (statistical parametric mapping software package for pre treatment, primary treatment, secondary treatment to obtain the statistical parametric mapping and the import Xjview software, check the activation of brain function, Jie Pouding bits of information, interception fault map and three-dimensional reconstruction plan, report results.Results:1.The low frequency group in the primary motor area, the auxiliary motor area, the primary somatosensory area, the secondary somatic sensory area and the cerebellum area activation degree, the scope are stronger than the electric acupuncture group, the more wide. Low frequency group activation in the ipsilateral pontine, contralateral supplementary motor area compared with EA group with significant difference (p<0.01).2.The low frequency group activated by the brain region of the exercise than EA group strength, wide range, with a significant difference (p<0.01).Conclusion:1. The low frequency electric stimulation and electro acupuncture stimulation have immediate effect, the former in the activation of motor function related brain area is stronger, the scope is wider.2.Both the low frequency and EA groups can activate the motor related brain function area, and the main brain and ipsilateral cerebellum are the main. But the former activates the intensity of the brain area and the range is wider.