ISSN 1671-3710
CN 11-4766/R
主办:中国科学院心理研究所
出版:科学出版社

Advances in Psychological Science ›› 2025, Vol. 33 ›› Issue (4): 598-610.doi: 10.3724/SP.J.1042.2025.0598

• Neuropsychological Mechanisms of Autism from a Multidisciplinary Perspective: A Special Column • Previous Articles     Next Articles

Treatment of autism spectrum disorder: The potential role of repetitive transcranial magnetic stimulation

TIAN Renxia1, YANG Ping1(), GUO Yuanyuan1, WU Xia2   

  1. 1School of Psychology, Guizhou Normal University, Guiyang 550025, China
    2Institute of Brain Research and Rehabilitation, South China Normal University, Guangzhou 510898, China
  • Received:2023-05-08 Online:2025-04-15 Published:2025-03-05
  • Contact: YANG Ping E-mail:yangp@m.scnu.edu.cn

Abstract:

Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive brain modulation technique that has gained increasing attention in the field of autism spectrum disorder (ASD) intervention in recent years. This study systematically reviews the literature on rTMS interventions for ASD from 2014 to 2024, focusing on its mechanisms of action, target selection, and the relationship with core symptoms, as well as future optimization directions.

Regarding the mechanisms of action, (1) low-frequency rTMS modulates cortical GABAergic neurotransmission to restore the excitatory-inhibitory (E/I) balance, thereby significantly improving repetitive and stereotypical behaviors as well as executive function deficits in ASD; (2) high-frequency rTMS enhances synaptic long-term potentiation (LTP) and regulates neurotransmitter transmission to increase the excitability of target regions and associated neural networks, contributing to the alleviation of social interaction impairments in ASD.

From the perspective of target selection, studies indicate that low-frequency rTMS targeting the dorsolateral prefrontal cortex (DLPFC) has shown significant effects in improving repetitive and stereotypical behaviors and executive function in ASD. High-frequency rTMS targeting the temporo-parietal junction (TPJ, including pSTS and IPL) has been found to significantly enhance social behaviors and language abilities in ASD patients. Intervention cycles are generally set to 15-18 sessions, with stimulation intensity adjusted based on individual motor thresholds (80%-100%) to ensure a balance between efficacy and safety.

Although rTMS interventions have shown some positive results, existing studies still have several limitations. This review highlights the following issues: (1) random double-blind designs are not widely employed, with most studies lacking strict experimental controls, and only a few studies using sham stimulation as a control; (2) target localization is mainly based on standard electrode caps or the “5 cm rule,” which has limited precision, with only a few studies using individualized brain imaging for localization; (3) stimulation parameters (such as frequency, intensity, and duration) are not standardized and require optimization; (4) the critical period effect of rTMS interventions for ASD, particularly during the highly plastic period of early childhood (0-6 years), remains unclear and warrants further investigation.

To enhance the scientific rigor and clinical efficacy of rTMS interventions for ASD, future studies should focus on designing strict random double-blind trials, preferably using sham stimulation as a control to mitigate placebo effects. Additionally, multimodal techniques such as functional magnetic resonance imaging (fMRI), magnetic resonance spectroscopy (MRS), and electroencephalography (EEG) should be employed to elucidate the underlying neural mechanisms. Furthermore, the effects of rTMS at different age stages and its personalized therapeutic outcomes should be systematically evaluated. Lastly, exploring the optimization of stimulation parameters could improve the therapeutic effects and provide a basis for individualized treatments.

Key words: autism spectrum disorder, repetitive transcranial magnetic stimulation, dorsolateral prefrontal cortex, temporoparietal junction

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