A Review of the Transcranial Magnetic Stimulation Treatment in Autism Spectrum Disorders

Many researchers are focusing on different medication and intervention methods to treat problems associated with autism spectrum disorder (ASD). Transcranial magnetic stimulation (TMS) is one of the novel techniques that currently have been investigated as a treatment for certain symptoms of autism. The aim of this study was to review the available evidence to determine the efficacy of TMS in autism. Medline, Embase, CINAHL, Web of Science, Scopus, Wiley, Ovid and Google Scholar databases were searched for relevant controlled clinical trials. The terms “autism, autism spectrum disorders combined with transcranial magnetic stimulation, repetitive transcranial magnetic stimulation” were used as text words. Most of these studies targeted the dorsolateral prefrontal cortex (DLPFC) and used low-frequency stimulation. These studies had some limitations; however, the results of all of them showed that TMS is effective in improvement of ASD symptoms. Moreover, repetitive TMS might become useful in the rehabilitation of ASD patients. Finally, integrated approaches utilizing TMS together with other rehabilitation techniques, as well as using TMS to target the objective problems in ASD are proposed.