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NCT Number: NCT07232862

Analysis Of The Effect Of A Fine Manual Skills Intervention In A Specific Context On The Linguistic Processing of Healthy Young Adults

This is a randomized, single-blind clinical trial that will include healthy individuals between the ages of 19 and 24. Participants with previously diagnosed neurological and/or psychiatric disorders, a history of traumatic brain injury, use of psychoactive substances or medications that may affect cognition, and pregnant women or women suspected of being pregnant will be excluded. The sample will be a convenience sample, with participants randomly allocated to intervention and control groups (1:1), and the sample size calculation will be based on a pilot study. Participants will be assessed at two different time points, before and after the intervention, for fine manual dexterity and syntactic language processing. The intervention group will undergo fine manual dexterity training in a specific context, while the control group will undergo an intervention with a less complex task and without a specific context. Both protocols will consist of 20-minute sessions, held five times a week over two weeks, in a synchronous online format, via the Google Meet videoconferencing platform.

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Key information

Conditions

Healthy Participants

Age range

19 year–24 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Federal University of Health Sciences of Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil

Loading trial locations.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Right-handed young people between 19 and 24 years old;
  • Accept participation in the study and sign the free and informed consent form.

Exclusion criteria

  • Presence of previously diagnosed neurological and/or psychiatric disorders;
  • History of traumatic brain injuries;
  • Pregnant women or women suspected of being pregnant.

Treatment and study plan

Context-Specific Fine Motor Skills Training

Behavioral

The intervention for the "Context-Specific Fine Motor Skills Training" group will consist of practicing fine manual dexterity in a task-oriented context, characterized by clear and functional objectives. The activity will begin with solving mathematical calculations, the results of which will range from 1 to 4, each associated with a specific color of bead. Using tweezers, the participant must select the bead corresponding to the result obtained, apply glue, and fill the indicated space of the mandala. The intervention will be carried out for 20 minutes per day, five times a week, over the course of two weeks.

Fine Motor Skills Training

Behavioral

The "Fine Motor Skills Training" group will undergo an intervention with a less complex task. Participants will complete the mandala using only their hands to manipulate the beads. The duration and frequency protocol will be identical to that of the experimental group, with 20-minute sessions, five times a week, over two weeks.

Primary outcomes

  1. Syntactic production

    Time frame: Baseline (2 to 3 days before the beginning of intervention) and post-intervention (2 weeks after the beginning of intervention, and 1 day after the last day of intervention)

    Participants described a pleasant autobiographical event and the "Picnic Scene" from the Western Aphasia Battery.

Secondary outcomes

  1. Fine motor dexterity

    Time frame: Baseline (2 to 3 days before the beginning of intervention) and post-intervention (2 weeks after the beginning of intervention, and 1 day after the last day of intervention)

    The fine motor dexterity will be evaluated through the Grooved Pegboard Test. The test consists of picking a pine and putting it in the pegboard in a correct sequence. The pegboard had 25 holes, and the score is measured in how much time the participant spends completing the pegboard.

Study contacts

Contact information is provided by the study sponsor or research team.

Aline Pagnussat

CONTACT

[email protected]

555133038912

Sponsors and collaborators

Lead sponsor

Federal University of Health Science of Porto Alegre

Other

Registry information

Important dates

Study start
2025
Primary completion
2025
Study completion
2026
First posted
Nov 18, 2025
Registry last updated
Apr 9, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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