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

NCT07232862 | Recruiting

• 1 other identifier: Mandala
• Study Type: interventional
• Target: 40
• Locations: 1 country
• Sites: 2

Brief Summary

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.

Conditions

Healthy Participants

Outcome Measures

Primary Outcomes (1)

• Syntactic production

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

  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)

Secondary Outcomes (1)

• Fine motor dexterity

  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)

Study Arms (2)

Context-Specific Fine Motor Skills Training

EXPERIMENTAL

Behavioral: Context-Specific Fine Motor Skills Training

Fine Motor Skills Training

ACTIVE COMPARATOR

Behavioral: Fine Motor Skills Training

Interventions

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.

Context-Specific Fine Motor Skills Training

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.

Fine Motor Skills Training

Eligibility Criteria

• Age: 19 Years - 24 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

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

You may not qualify if:

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

Sponsors & Collaborators

• Federal University of Health Science of Porto Alegre: lead

Study Sites (2)

Federal University of Health Sciences of Porto Alegre

Porto Alegre, Rio Grande do Sul, 90050-170, Brazil

NOT YET RECRUITING

UFCSPA

Porto Alegre, Rio Grande do Sul, 90050170, Brazil

RECRUITING

Central Study Contacts

Aline Pagnussat

CONTACT

555133038912; alinesp@ufcspa.edu.br

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: September 12, 2025
• First Posted: November 18, 2025
• Study Start: November 13, 2025
• Primary Completion: December 31, 2025
• Study Completion (Estimated): December 31, 2026
• Last Updated: April 9, 2026

Record last verified: 2026-04

Locations

BR (2)