NCT03733080

Brief Summary

Background: Our goal is to gain insight into early human motor skill learning by carrying out online substudies using online crowd-sourcing tools. Objective: To learn more about motor behavior in a large group of people using motor tasks, and questions. Eligibility: Adults ages 18 and older based in the U.S. who speak English Design: Participants will be recruited from a crowd-sourcing website like Amazon Mechanical Turk. Participants will do online tasks. They can use their own computers anywhere with Internet access. They will not need to directly interact with researchers. Participants will be asked for general data, like their age and gender. No personally identifiable data will be collected. Participants will see a list of tasks on their computer screen. They will be able to choose tasks they wish to do. They will get a description of the experiment, how long it takes, and how much compensation they will get. Participants will complete on their screen a motor behavioral task, a cognitive task, and/or a questionnaire. For example, they may be asked to press sequences of numbers on the keyboard or move the mouse when a stimulus appears on the screen. Experiments may last up to 1 hour. Participants can complete as many experiments as they wish. They can quit at any point.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
2,529

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2019

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 6, 2018

Completed
1 day until next milestone

First Posted

Study publicly available on registry

November 7, 2018

Completed
2 months until next milestone

Study Start

First participant enrolled

January 9, 2019

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 17, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 17, 2019

Completed
Last Updated

April 15, 2025

Status Verified

April 1, 2025

Enrollment Period

9 months

First QC Date

November 6, 2018

Last Update Submit

April 11, 2025

Conditions

Keywords

AMTNatural History

Outcome Measures

Primary Outcomes (1)

  • data analysis

    Aim 1. To validate a motor skill learning task previously used by our group in lab-based studies {Bonstrup, 2019 #36} within an online, crowd-sourcing platform. Aim 2. To compare the influence of an interfering task applied during early ( early interference group) vs late ( late interference ) rest periods on stabilization of motor learning. Aim 3. To evaluate the effects of shorter practice period durations (i.e. - 5s vs. previously studied 10s duration) on micro-offline motor learning to gain insight into the impact of fatigue-relatedfactors on learning. Aim 4. To evaluate the effects of randomly variable practice period durations between 5-10s in length on micro-offline gains

    in data analysis

Study Arms (1)

1

ages 18 and older

Eligibility Criteria

Age18 Years - 120 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

A total of 2,529 volunteers have participated in this protocol. It is possible that some of these participants may have been NIH or NINDS employees, since participant identities were anonymous to the experimenters. Data aquired from 97 participants was used for testing and debugging the typing task application during initial technical development. These data are not useable for research purposes.

You may qualify if:

  • U.S.-based English speakers greater than 18 years of age are eligible to participate in the study.

You may not qualify if:

  • Subjects are excluded if they are less than 18 years of age. NIH and NINDS employees are not excluded from the study, since participation is anonymous and personal identifiers unknown to the experimenters.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institute of Neurological Disorders and Stroke (NINDS)

Bethesda, Maryland, 20892, United States

Location

Study Officials

  • Leonardo G Cohen, M.D.

    National Institute of Neurological Disorders and Stroke (NINDS)

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
CROSS SECTIONAL
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 6, 2018

First Posted

November 7, 2018

Study Start

January 9, 2019

Primary Completion

October 17, 2019

Study Completion

October 17, 2019

Last Updated

April 15, 2025

Record last verified: 2025-04

Locations