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A study of sensorimotor cortex rhythms and primary somatosensory cortex activity in healthy subjects on Non-invasive brain stimulation.

A study of the effect of sensorimotor cortex rhythms on primary somatosensory cortex (SI) activity using non-invasive brain stimulation (NBS) in healthy subjects.

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs072250091
Enrollment
10
Registered
2025-11-05
Start date
2025-12-08
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

Healthy person Minamata disease, Neuropathic pain

Interventions

1) otDCS otDCS involves applying both direct current stimulation (tDCS, 1mA for 20 minutes to the motor cortex) and alternating current stimulation (tACS, 10Hz, 2mA amplitude for 20 minutes to the mot

Sponsors

Nakamura Masaaki
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1.Age at the time of informed consent: 40 years or older 2.Gender: No matter 3.No dementia, aphasia, psychiatric disorders, higher-level functional disorders, or suicidal tendencies. 4.After receiving a full explanation of the study and fully understanding it, participants have given written consent of their own free will. 5.No neuropathic diseases such as diabetic neuropathy.

Exclusion criteria

Exclusion criteria: 1.Individuals who met the eligibility criteria, but were deemed unsuitable for enrollment in the clinical study by the Contact for Sponsor. 2.Individuals with Diabetic Neuropathy. 3.Individuals who were unable to undergo a 3TMRI scan. 4.Pregnant or potentially pregnant women. 5.Individuals with any metal in the head, excluding the oral cavity. 6.Individuals with an implanted cardiac pacemaker or drug infusion pump. 7.Patients with a history of major cerebral infarction, significant head trauma, brain tumor, or epilepsy (owing to an increased risk of seizure induction). 8.Individuals with a history of syncope. 9.Individuals currently taking antibiotics(aminoglycosides). 10.Individuals with severe hearing impairment or tinnitus. (Check for hearing aids and ENT treatment if any.)

Design outcomes

Primary

MeasureTime frame
PAF(Hz),Power Value: before and after (+0min, +20min, +40min)

Secondary

MeasureTime frame
1.gamma activity, inhibition and rebound of SEF: before and after (+0min, +20min, +40min) Relative value of gamma-activity Rhythm of beta-band: frequency (Hz) and duration (ms) of beta-bursts for inhibition and rebound, respectively 2.Thalamic GABA/Glx ratio: before treatment 3.Safety The occurrence of adverse events due to the three stimulation methods performed will be evaluated.

Contacts

Public ContactNobuko Tabata

National Institute for Minamata Disease

tabata@nimd.go.jp+81-966-63-3111

Outcome results

None listed

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