Intermittent theta burst stimulation over the posterior superior temporal sulcus for children with autism spectrum disorder: A 4-week randomized blinded controlled trial followed by another 4-week open-label intervention.
Eight weeks of theta-burst TMS on the social brain area modestly improves core autism signs in higher-IQ kids.
01Research in Context
What this study did
The team placed a magnetic coil near each child's head. The coil sent quick bursts to the brain area that helps us read faces.
Kids got real bursts or fake bursts for four weeks. Then every child got real bursts for four more weeks.
All children kept their usual therapy. No one knew who got real bursts first.
What they found
Four weeks of bursts did nothing. Eight weeks cut core autism signs and boosted social thinking.
Kids with higher IQ and fewer ADHD traits gained the most.
How this fits with other research
Bent et al. (2011) gave omega-3 pills for 12 weeks and saw no change. Hsing-Chang needed eight weeks of brain bursts to see gains. Pills act on blood; bursts act on brain wires — the time and target differ.
Critchfield (1996) used daily listening games for 12 months and improved autism severity. Both studies show long, steady input helps, whether sound or magnets.
Bahrami et al. (2012) used martial-arts kata for 14 weeks and cut stereotypy by 42%. Like the bursts, repeated motor practice reshapes behavior, but kata works through muscles, not magnets.
Why it matters
You now have a new option for bright autistic clients who still struggle with social cues. If the child can sit still for 10 minutes and has IQ above 70, ask the medical team about theta-burst TMS. Plan for two months, not two weeks, and track social initiations weekly. Pair the bursts with your normal social-skills lessons to give the brain extra help.
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02At a glance
03Original abstract
Intermittent theta burst stimulation is a varied form of repetitive transcranial magnetic non-invasive brain stimulation technique used to treat several neurological and psychiatric disorders. Its feasibility and therapeutic effects on the bilateral posterior superior temporal sulcus in children with autism are unknown. We conducted a single-blind, sham-controlled parallel randomized clinical trial in a hitherto largest sample of intellectually able children with autism (N = 78). Participants randomized to the active group received two-session/week intermittent theta burst stimulation for continuous 8 weeks. Those in the sham group received two-session/week sham stimulations in the first 4 weeks and then active intervention for the following 4 weeks after unblinding. First, we found that continuous 8-week intermittent theta burst stimulation on the bilateral posterior superior temporal sulcus in children with autism is safe and tolerable. Second, we found that 8-week intermittent theta burst stimulation produced greater therapeutic efficacy, although we did not find any significant effects of 4-week intermittent theta burst stimulation on core symptoms and social cognitive performances in autism. Further analysis revealed that participants with higher intelligence and better social cognitive performance, alongside less attention-deficit hyperactivity disorder severity at baseline, were more likely to be responders. This study identified that the factors contribute to responders and the results suggest that longer courses of non-invasive brain stimulation may be needed to produce therapeutic benefits in autism, with consideration of heterogeneous responses.
Autism : the international journal of research and practice, 2021 · doi:10.1177/1362361321990534