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Recording brain activity during thinking tasks

This study uses several recording methods to investigate thinking in people undergoing specialist neurological assessment.

Testing a treatment or activity · Study reference: JPRN-UMIN000040073

Plain-language introduction written with AI from the registry; not independently checked by a clinician. Read the original details below ↓

This registry record was last updated over six months ago, or its update date is missing. Recruitment may have changed. Confirm with the team before making plans.

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Results reported

Start (reported date)
2020-04-06
Study finished (reported date)
2025-06-30

Planned dates can move. A study finishing does not tell us when a paper will be published.

Read the results reported in the registry

Changes we have recorded
  • 2026-10-11 — recruiting

These are dates we observed a change, not necessarily the dates it happened.

Papers connected to this study

No connected paper has been found yet. The tracker checks the growing library for study identifiers and registry-linked publications.

Who can join?

Ages 8years-old to 90years-old · Ask the team who can join

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Read all the rules for taking part

Sex eligibility reported by registry: male and female

Inclusion criteria: 1.In a good condition after the surgery. 2.Obtained informed consent from the patient 3. Patients whose ages are more than 8 years old. Exclusion criteria: 1.When the patient seems unfit to participate in the study such as restlessness and disturbance of consciousness. 2. a pacemaker is implanted. 3. the metal is in the body for use in surgery or drug injection. 4. there is a possibility that a piece of metal has been accidentally introduced into the body from working in the metal processing industry. 5. Claustrophobia; 6. Severe shortness of breath when lying down.
Full study name & original research details

Official study title

Cognitive function assessed by recording of brain activity using multimodal methods - Cognitive function assessed by recording of brain activity using multimodal methods

Short title used by the registry

Cognitive function assessed by recording of brain activity using multimodal methods

Original description

Intervention: Participants: Patients with epilepsy implanted with chronic subdural or depth electrodes for epileptogenic focus surgery. Duration: 2 ~ 4 weeks (1~3 hours / day) Study: Measuring neural activities from the cortex and subcortical area during cognitive tasks (visual, auditory, and tactile stimuli). Furthermore, evaluating the changes of cognitive performances by using electric stimulation to the cortical and subcortical areas. The parameters of stimulation are based on the conventional clinical functional mapping protocol. Primary outcome: The neural activities during cognitive tasks and the behavioral performances of the cognitive tasks by stimulation of the cortex will be evaluated. The evaluation will be performed before epileptogenic focus resection surgery (~4 weeks). Secondary outcome: 1. The neural activities during cognitive tasks and the behavioral performances of the cognitive tasks by stimulation of subcortical areas will be evaluated. The evaluation will be performed before the implantation of the stimulation device used in deep brain stimulation therapy (~2 week). 2. In patients undergoing epileptic focal resection, device implantation for deep brain stimulation therapy, brain tumors, or cerebrovascular disease surgery, functional magnetic resonance imaging are used to assess the activity of cortical and subcortical areas during cognitive tasks and at rest. Evaluations will be performed before the surgery, and 1 month and 6 month after the surgery.

Conditions reported: Epilepsy, Parkinson's disease, dystonia, stroke, brain tumor, cerebrovascular disease

Registry records for this study

Records are joined using registration identifiers. Titles alone do not establish that two studies are the same.

Study type
Interventional
Interventions
Participants: Patients with epilepsy implanted with chronic subdural or depth electrodes for epileptogenic focus surgery. Duration: 2 ~ 4 weeks (1~3 hours / day) Study: Measuring neural activities from the cortex and subcortical area during cognitive tasks (visual, auditory, and tactile stimuli). Furthermore, evaluating the changes of cognitive performances by using electric stimulation to the cortical and subcortical areas. The parameters of stimulation are based on the conventional clinical functional mapping protocol.
Phases
Not selected
Sponsor
Jichi Medical University
Start date reported by registry
2020-04-06 (reported)

Registry updated: Not reported · Status last verified by the registry submitter: Not reported

Registry records retrieved 2026-10-11 (UTC). Individual records may have older updates. Recruitment and eligibility must be confirmed with the study team.

Contact the research team

Public study contacts supplied to the registry. Ask whether recruitment is still open and what participation involves.

Kensuke Kawai · 0285-58-7373 · kenkawai-tky@jichi.ac.jp

Study locations

Site status can differ from overall study status. “Status not reported” means local availability needs confirmation. Remote participation and travel arrangements must be checked with the team.

Facility not reported

Japan

Status not reported

The original descriptions and participation rules come from the registry. Participation is voluntary and does not guarantee benefit.