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Tweezers and grammar: a trial tests whether fine motor training can rewire language processing

NCT ID NCT07718698

Knowledge-focused Sponsor: Federal University of Health Science of Porto Alegre Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 22, 2026 · Last updated Jul 23, 2026 · Updated 1 time

Summary

This trial investigates whether practicing precise tool use — like picking up beads with tweezers — can influence how the brain handles grammar. Healthy young adults aged 19 to 24 will be split into three groups: one that trains with tweezers, one that does similar hand movements without tools, and a control group. Before and after two weeks of daily online sessions, participants complete a sentence-judgment task while their brain activity is recorded with EEG. The goal is to see if motor training can alter language processing at a neural level.

What this could mean

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

Active substance
dexterous tool-use training with tweezers
What this could lead to
If the motor-language link is confirmed, it could point toward new rehabilitation strategies for language disorders.
What could go wrong
This is a small, early-stage study in healthy volunteers, so results may not apply to clinical populations. The effect, if any, may be subtle or not reproducible.

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 60 people

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

Expected to start

Jul 2026

An estimate. Start dates often move.

Expected to finish

Mar 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

19 to 24 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Healthy young adults aged between 19 and 24 years; * Right-handed individuals. Exclusion Criteria: * Previous diagnosis of neurological and/or psychiatric disorders; * History of traumatic brain injury; * Use of psychoactive substances or medications that may affect cognitive functioning; * Pregnancy or suspected pregnancy.

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Conditions

The condition(s) this trial relates to.

Language

As listed by the trial registrant

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

Young adults

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

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Contacts and locations

Locations

  • UFCSPA

    Porto Alegre, Rio Grande do Sul, 90050170, Brazil

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