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Scientists probe brain waves to decode human thought

NCT ID NCT05273970

Knowledge-focused Sponsor: University of Arizona 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
Registered, but not yet taking participants.
By invitation only This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study measures brain activity and chemical levels in people with epilepsy who already have electrodes implanted for medical reasons. Participants play simple computer games while their brain signals are recorded. The goal is to learn how the brain works during thinking and emotion, not to treat any condition.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 10 people

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

Started

Sep 2022

Expected to finish

Feb 2027

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.

Ages

18 to 80 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: * Age 18 to 80 years, inclusive. * Patients who are candidates for electrode implantation due to pharmacologically intractable epilepsy, or other neurological/psychological disorders for which subdural electrode implantation may be clinically required for treatment. * Patients competent to give informed consent/assent for the research protocol and parents of children under 18 who are competent to give informed consent on behalf of the child. * Fluency in English (necessary for uniform cognitive testing). * Committee approved candidates for brain surgery. * Medications must be at stable doses for at least 1 month before surgery Exclusion Criteria: * Clinically significant cognitive dysfunction. * Terminal illness associated with \<12 month survival. * Contraindication to MRI imaging, e.g., morbid obesity, metallic devices such as cardiac pacemakers, some aneurysm clips, or shrapnel. * Current pregnancy or pregnancy planned during the course of the study. * Cognitive function less than 2 standard deviations below normal on preoperative neuropsychological testing

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Conditions

The condition(s) this trial relates to.

cognitive disorder

As listed by the trial registrant

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

Cognition Medically intractable 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

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    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

  • Banner - University Medical Center, Phoenix campus

    Phoenix, Arizona, 85006, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.