Combined Transcranial Direct Current Stimulation With Sensory-Based Treatments in Autism: Preliminary Report

Shih-Han Chou1, Yawei Cheng2, Sung-Hui Tseng1

  • 1Taipei Medical University Hospital, Taipei, Taiwan.

Insights

Sensory-based treatments combined with active transcranial direct current stimulation (tDCS) significantly reduced autism severity and behavioral issues in children with autism spectrum condition (ASC). This approach may offer a novel therapeutic avenue for ASC symptoms.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Clinical Psychology

Background:

  • Autism spectrum condition (ASC) presents challenges in sensory regulation and social interaction.
  • Current treatments for ASC often involve behavioral interventions, but novel therapeutic approaches are needed.
  • Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique with potential therapeutic applications.

Purpose of the Study:

  • To investigate the efficacy of sensory-based treatments (SBT) combined with active transcranial direct current stimulation (tDCS) of the left prefrontal cortex in children with ASC.
  • To compare the effects of SBT+active tDCS (SBT+AtDCS) with SBT+sham tDCS (SBT+StDCS) on autism symptoms.
  • To assess the impact of the combined treatment on sensory regulation, autism severity, and behavioral difficulties.

Main Methods:

  • Eleven children diagnosed with ASC were recruited for this preliminary study.
  • Participants were randomly assigned to receive either SBT+AtDCS or SBT+StDCS over 10 sessions within a 2-week period.
  • Improvements in sensory regulation, autism severity, and behavioral difficulties were assessed post-treatment.

Main Results:

  • All participants demonstrated significant improvements in sensory regulation and response to stimuli after treatment.
  • The group receiving SBT+AtDCS showed significantly greater reductions in autism severity and behavioral difficulties compared to the SBT+StDCS group.
  • This suggests a potential synergistic effect of combining SBT with active tDCS.

Conclusions:

  • This preliminary study provides the first evidence that combining sensory-based treatments with active transcranial direct current stimulation may alleviate symptoms in children with autism spectrum condition.
  • The findings suggest that SBT+AtDCS may be a promising therapeutic strategy for improving core symptoms of ASC.
  • Further research with larger sample sizes, neuroimaging, and longitudinal designs is warranted to validate these results.

Related Concept Videos