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Effects of Tool Handling on Language Processing

15. Juli 2026 aktualisiert von: Aline de Souza Pagnussat, Federal University of Health Science of Porto Alegre

Analysis of the Effect of a Tool-Handling Intervention in a Specific Context on the Linguistic Processing of Healthy Young Adults

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.

Studienübersicht

Status

Noch keine Rekrutierung

Bedingungen

Intervention / Behandlung

Studientyp

Interventionell

Einschreibung (Geschätzt)

60

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

  • Brasilien
    • Rio Grande do Sul
      • Porto Alegre, Rio Grande do Sul, Brasilien, 90050170

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene

Akzeptiert gesunde Freiwillige

Ja

Beschreibung

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.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Doppelt

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Aktiver Komparator: Kontrolle
Verhalten: 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.
Experimental: Dexterous tool-use training
Verhalten: 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.
Aktiver Komparator: Dexterous manual training group without tools
Verhalten: 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.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Assessment of Synthatic Processing Performance - Reaction time
Zeitfenster: Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Linguistic processing will be evaluated through a computerized sentence judgment task composed of 60 sentences containing grammatical agreement violations and control sentences. Reaction time will be measured as the time elapsed between the presentation of each sentence and the participant's button press indicating whether the sentence is grammatically correct or incorrect. Mean reaction time across trials will be reported in milliseconds (ms).
Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Assessment of Synthatic Processing Performance - Accuracy
Zeitfenster: Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Linguistic processing will be evaluated through a computerized sentence judgment task composed of 60 sentences containing grammatical agreement violations and control sentences. Accuracy will be assessed as the absolute number of correct responses. The absolute number of incorrect responses (errors) will also be recorded.
Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
N200 Event-Related Potential Mean Amplitude
Zeitfenster: Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Event-related potentials (ERPs) will be recorded using electroencephalography (EEG) during a computerized linguistic judgment task involving sentences with and without gender and number agreement violations. The mean amplitude of the N200 component will be measured within the predefined time window and electrodes of interest.
Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
P300 Event-Related Potential Mean Amplitude
Zeitfenster: Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Event-related potentials (ERPs) will be recorded using electroencephalography (EEG) during a computerized linguistic judgment task involving sentences with and without gender and number agreement violations. The mean amplitude of the P300 component will be measured within the predefined time window and electrodes of interest.
Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
N200 Event-Related Potential Peak Latency
Zeitfenster: Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Event-related potentials (ERPs) will be recorded using electroencephalography (EEG) during a computerized linguistic judgment task involving sentences with and without gender and number agreement violations. The peak latency of the N200 component will be measured within the predefined time window and electrodes of interest.
Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
P300 Event-Related Potential Peak latency
Zeitfenster: Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Event-related potentials (ERPs) will be recorded using electroencephalography (EEG) during a computerized linguistic judgment task involving sentences with and without gender and number agreement violations. The peaky latency of the P300 component will be measured within the predefined time window and electrodes of interest.
Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Assessment of Syntactic Production - Hierarchical Embedding in Spontaneous Discourse
Zeitfenster: Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Syntactic production will be assessed through a spontaneous discourse task using the "Picnic Scene" from the Western Aphasia Battery (WAB). Speech samples will be audio-recorded, transcribed, and analyzed using the NILC-Metrix platform. Hierarchical embedding will be quantified as an index of syntactic complexity.
Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Assessment of Syntactic Production - Clauses per Sentence in Spontaneous Discourse
Zeitfenster: Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Syntactic production will be assessed through a spontaneous discourse task using the "Picnic Scene" from the Western Aphasia Battery (WAB). Speech samples will be audio-recorded, transcribed, and analyzed using the NILC-Metrix platform. Clauses per sentence will be calculated as a measure of syntactic complexity.
Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Assessment of Syntactic Production - Left-Branching Load (Frazier Index) in Spontaneous Discourse
Zeitfenster: Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
SSyntactic production will be assessed through a spontaneous discourse task using the "Picnic Scene" from the Western Aphasia Battery (WAB). Speech samples will be audio-recorded, transcribed, and analyzed using the NILC-Metrix platform. Left-branching load will be quantified using the Frazier Index.
Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Manual dexterity
Zeitfenster: Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Manual dexterity, visuomotor coordination, and executive functioning will be assessed using the Grooved Pegboard Test (GPT). Participants will insert grooved pegs into a board as quickly as possible using both dominant and non-dominant hands. Completion time (in seconds) will be recorded for each hand.
Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)

Andere Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Assessment of Sleep Quality
Zeitfenster: Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)
Sleep quality will be assessed using the Pittsburgh Sleep Quality Index (PSQI). The questionnaire evaluates subjective sleep quality, sleep latency, sleep duration, sleep efficiency, sleep disturbances, use of sleep medication, and daytime dysfunction. Total scores range from 0 to 21, with scores above 5 indicating poor sleep quality.
Change from PRE assessment (up to 1 week before intervention) to POST assessment (up to 1 week after intervention completion)

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Federal University of Health Science of Porto Alegre

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

31. Juli 2026

Primärer Abschluss (Geschätzt)

31. Dezember 2026

Studienabschluss (Geschätzt)

31. März 2027

Studienanmeldedaten

Zuerst eingereicht

11. Juni 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

15. Juli 2026

Zuerst gepostet (Tatsächlich)

22. Juli 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

22. Juli 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

15. Juli 2026

Zuletzt verifiziert

1. Juni 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Schlüsselwörter

Zusätzliche relevante MeSH-Bedingungen

Andere Studien-ID-Nummern

  • TOOLANG

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

NEIN

Beschreibung des IPD-Plans

No plan to share individual participant data (IPD). Data will not be shared due to ethical and confidentiality considerations related to participant privacy and the terms of informed consent.

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

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