IRCT2017011028199N2 IRCT 2017-04-27 vice chancellor for research of Iran University of Medical Science Effect of Repetetive Transcranial Magnetic Stimulation(RTMS) on Mild Cognitive Impairment (MCI) Efficacy of Repetetive Transcranial Magnetic Stimulation(RTMS) on Mild Cognitive Impairment (MCI) 2017-02-19 anticipated 16 Complete https://irct.ir/trial/22928 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Used, Assignment: Crossover, Purpose: Treatment, Other design features: We will use Closed Packet in both intervention and control groups. N/A Mild cognitive disorder. Intervention 1: Intervention group 1: 8 patients in this study will be treated with RTMS 2-3 times per week for 8 weeks with every session lasts for 30 minutes. Device for induction of magnitude wave is named Magnature which is made in Denmark .the frequency is above 1 Hz and usually above 10 Hz which has the optimal stimulation effect on postero-lateral prefrontal cortex. Intensity: The intensity is the minimum stimulation which is required to induce contraction of small hand muscles observed by a physician or recorded by an electromyogram. This intensity is usually 100 to 120 percent of resting membrane potential of a neuron. Time of stimulation: 10 seconds. Location of stimulation: left dorsolateral prefrontal cortex which is related to memory. Interval of stimulations: 0.20 seconds. Number of stimulation in every sessions: 1000 Time of every session: 30 minutes Number of sessions: 2-3 sessions per week, up to 8 weeks. The treated group are subsequently treated with placebo for the next 8 sessions via voice without magnitude after mentioned cognitive tests ( Mini-Mental State Exam & Montreal Cognitive Assessment) being performed Cognitive tests will be performed for both groups at the end of the last session. Intervention 2: Intervention group 2: 8 patients will be initially treated with placebo for 8 weeks via pure voice without real magnitude wave cognitive tests. Cognitive tests will be performed at the end of the 8th week. The mentioned group will later be treated by real magnitude wave for 8 weeks and mentioned cognitive tests will be repeated.