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Social cognitive Enhancement by DIrect Current Stimulation

The effect of transcranial direct current stimulation on social cognition in patients with Schizophrenia - SEDICS

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs032180026
Enrollment
15
Registered
2018-10-15
Start date
2019-05-31
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Schizophrenia Schizophrenia

Interventions

Transcranial direct current stimulation will be performed using a low-intensity tDCS (Model 1300A
Soterix Medical Inc., New York, USA) that delivers direct current through two 35 cm2 electrodes. The anode electrode will be placed over the left superior temporal sulcus, and the cathode will be plac
tDCS

Sponsors

Sumiyoshi Tomiki
Lead Sponsor
Intramural Research Grant (30-1) for Neurological and Psychiatric Disorders of National Center of Neurology and Psychiatry (NCNP)
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. patients diagnosed as Schizophrenia in DSM-5 2. patients aged between 20 and 70 3. patients who can understand the objective and content of the study and provide consent to participate in it. 4. patients whose SCSQ score is less than 34 points.

Exclusion criteria

Exclusion criteria: 1. patients with a present or past history of severe organic lesions and/or injury in the brain or dementia, or epilepsy. 2. patients with alcohol or substance use disorder that wass present within 12 months from the start of study 3. ECT or tDCS is clinically contraindicated. 4. patients who were treated with tDCS or other neuro-modulation within the past two months. 5. patients deemed inappropriate to participate by judgment of the principal investigator.

Design outcomes

Primary

MeasureTime frame
SCSQ(Social Cognition Screening Questionnaire)

Secondary

MeasureTime frame
False Belief Task, FEST (Facial Emotion Selection Test), AQ (Autism-Spectrum Quotient), UPSA-B (Brief UCSD Performance-based Skills Assessment), PANSS (Positive and Negative Syndrome Scale), JART25 (Japanese Adult Reading Test-25), BACS (The Brief Assessment of Cognition in Schizophrenia)

Contacts

Public ContactYuji Yamada

National Center of Neurology and Psychiatry

yujiyamada@ncnp.go.jp+81-42-341-2711

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026