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Can brain electrodes reveal the signatures of thought?

NCT ID NCT07796984

Knowledge-focused Sponsor: University Hospital, Toulouse Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 01, 2026 · Last updated Sep 02, 2026 · Updated 1 time

Summary

This study investigates how the brain processes cognitive tasks like memory, attention, and language by recording electrical activity directly from within the brain. Participants are people with drug-resistant epilepsy who already have electrodes implanted for clinical monitoring. While they perform tasks, researchers will correlate their performance with brain signals to build a map of cognitive functions and see how epilepsy affects them.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Cognitive tasks (questionnaires) performed during SEEG monitoring
What this could lead to
If successful, this could create a detailed map of brain activity linked to memory, attention, and language, improving understanding of cognitive function and epilepsy-related dysfunction.
What could go wrong
This is an observational study, not a treatment trial. It may not directly change patient care, and results depend on the cooperation and variability of participants.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 75 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Oct 2026

An estimate. Start dates often move.

Expected to finish

Oct 2031

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

patients with drug-resistant epilepsy hospitalized for stereo-electroencephalography

Ages

18 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patient with drug-resistant focal epilepsy undergoing SEEG evaluation as part of the pre-surgical workup for epilepsy * Intellectual capacity sufficient to perform cognitive tasks, receive information about the study procedure, and understand the information sheet Exclusion Criteria: * Patients already participating in another research project that prohibits participation in another study

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Conditions

The condition(s) this trial relates to.

epilepsy

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Epilepsy

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Electrophysiologie cérébrale, épilepsie, sommeil, Hôpital Pierre Paul Riquet

    Toulouse, Oui, 31000, France

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