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Effects of Tool Handling on Language Processing
Sponsor: Federal University of Health Science of Porto Alegre
Summary
This randomized controlled trial aims to investigate the effects of a context-specific tool-handling intervention on linguistic processing in healthy young adults. Participants will be allocated into three groups: a dexterous tool-use training group, a dexterous manual training group without tools, and a Control group. The dexterous tool-use training group will perform a task-oriented activity involving the use of tweezers to place colored beads into a mandala within a specific functional context. The intervention requires sequential motor planning, force control, precision, and goal-directed tool use. The dexterous manual training group without tools will perform a similar bead-placement activity without tool use, involving direct hand manipulation and lower task complexity. Both intervention groups will participate in synchronous online sessions via Google Meet for 20 minutes per day, five times per week, over a two-week period. The Control group will not receive any structured intervention and will instead be instructed to perform one activity of daily living using the non-dominant upper limb once per day during the two-week period. Linguistic processing will be assessed through a sentence judgment task involving sentences with and without semantic violations, in which participants will classify the sentences as correct or incorrect while electroencephalographic activity (EEG) is recorded. Additionally, sleep quality and manual dexterity will also be evaluated. The findings of this study may contribute to understanding the relationship between tool-related motor training and linguistic processing, particularly the interaction between motor and language systems in healthy young adults. Additionally, the study may provide evidence regarding neurophysiological changes associated with context-specific motor interventions.
Official title: Analysis of the Effect of a Tool-Handling Intervention in a Specific Context on the Linguistic Processing of Healthy Young Adults
Key Details
Gender
All
Age Range
19 Years - 24 Years
Study Type
INTERVENTIONAL
Enrollment
60
Start Date
2026-07-31
Completion Date
2027-03-31
Last Updated
2026-07-22
Healthy Volunteers
Yes
Conditions
Interventions
Dexterous tool-use training
The intervention will be supervised by a researcher through assynchronous way. Participants will perform a task-oriented activity involving the use of tweezers to place colored beads into a mandala within a functional and goal-directed context.
Dexterous manual training group without tools (Online)
The intervention will be supervised by a researcher through assynchronous way. Participants will perform a bead-placement activity directly with their hands, without the use of tools.
Control
Participants allocated to the control group will not receive structured training. They will be instructed to perform one activity of daily living using the non-dominant upper limb once per day during the two-week study period.
Locations (1)
UFCSPA
Porto Alegre, Rio Grande do Sul, Brazil