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An exploratory study on the neural mechanism of arithmetic ability changes induced by intracranial stimulation

An exploratory study on the neural mechanism of arithmetic ability changes induced by intracranial stimulation

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500101091
Enrollment
Unknown
Registered
2025-04-20
Start date
2025-04-28
Completion date
Unknown
Last updated
2025-04-28

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

Conditions

Epilepsy

Interventions

Observation group:None

Sponsors

The Second Affiliated Hospital of the Army Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
8 Years to 60 Years

Inclusion criteria

Inclusion criteria: 1) Patients with drug-resistant epilepsy requiring the implantation of deep brain electrodes for treatment; 2) Wechsler Intelligence Scale, full score and memory score both >60; 3) Patients with normal communication skills; 4) 12-60 years old.

Exclusion criteria

Exclusion criteria: 1) Patients with obvious malformations or abnormalities in the brain; 2) Patients with preivious history of craniotomy or intracranial electrode implantation; 3) Strong adverse reactions to functional electrical stimulation, such as palpitations, fear, and epileptic seizures; 4) Presence of other comorbidities, already having or requiring the implantation of cardiac pacemakers, defibrillators, and cochlear implants, etc.; 5) Serious heart, liver, kidney physical diseases or severe or progressive neurological and psychiatric diseases with severe arrhythmia, QTc>450ms; transaminase exceeding the upper limit of normal values (0-40U/L) by three times, total bilirubin (3.4-17.1 µ mol/L), creatinine (44-133umol/L) exceeding the upper limit of normal values by 1.5 times, or creatinine clearance rate<45ml/min.

Design outcomes

Primary

MeasureTime frame
Electroencephalographic changes;Arithmetic behavioral changes;

Countries

China

Contacts

Public ContactZhang Chunqing

The Second Affiliated Hospital of the Army Medical University

cqzhang@tmmu.edu.cn+86 189 8320 4130

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026