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The Effect of Transcranial Direct Current Stimulation on Intelligence Quotient in Children With Autism Spectrum Disorders

The Effect of Transcranial Direct Current Stimulation on Intelligence Quotient in Children With Autism Spectrum Disorders

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
TCTR
Registry ID
TCTR20221018005
Enrollment
10
Registered
2022-10-18
Start date
2022-10-17
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

anodal tDCS through the left dorsolateral prefrontal cortex (DLPFC) can enhance neural connectivity in the fronto-parietal networks and can increase intelligence in individuals with autism. Therefore, this study aimed to investigate the effect of anodal tDCS on IQ changes in high function autism spectrum disorder patients. Autism spectrum disorder

Interventions

Two main outcomes were assessed in this study, the primary outcome was the ATEC social subscale, and the secondary outcome was the IQ. We also assessed vital signs, physical examination, and neurologi
Experimental Device
IQ test

Sponsors

Khon Kaen University
Lead Sponsor
Faculty of Medicine, Khon Kaen University
Collaborator

Eligibility

Sex/Gender
All
Age
15 Years to 30 Years

Inclusion criteria

Inclusion criteria: The inclusion criteria were as follows: (a) mild to moderate autistic symptoms (Childhood Autism Rating Scale, CARS score 30-36.5) where the patient can co-operate in IQ examination; (b) aged between 15 and 30 years; (c) normal brain structure evaluated by MRI; and (d) the caregiver together with the patients consented to participate in the research.

Exclusion criteria

Exclusion criteria: The exclusion criteria were as follows: (a) severe neurological disorders such as brain tumor, intracranial infection, and uncontrollable epilepsy; (b) uncooperative parents; and (c) received other new treatments during the study.

Design outcomes

Primary

MeasureTime frame
IQ level 2 time points, at baseline and 2 weeks post treatment Test of Nonverbal Intelligence, fourth edition (TONI-IV)

Secondary

MeasureTime frame
ATEC score 2 time points, at baseline and 2 weeks post treatment Autism Treatment Evaluation Checklist

Countries

Thailand

Contacts

Public ContactParadee Auvichayapat

Khon Kaen University

aparad@kku.ac.th66896222624

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026