The Beneficial Effects of Naps on Motor Learning

Sponsor
National Institute of Neurological Disorders and Stroke (NINDS) (NIH)
Overall Status
Recruiting
CT.gov ID
NCT04312126
Collaborator
(none)
138
Enrollment
1
Location
45.9
Anticipated Duration (Months)
3
Patients Per Site Per Month

Study Details

Study Description

Brief Summary

Background:

Memory consolidation is the process by which memories become stable, long-term representations in the brain. Consolidation of a motor skill is dependent upon sleep. Some research shows that daytime naps improve people s motor performance and memory retention. Researchers want to find out how daytime naps may contribute to learning and support consolidation of motor skill memories.

Objective:

To learn the role of memory replay during wakeful rest and sleep (naps) in retaining a newly learned skill.

Eligibility:

English-speaking adults ages 18 and older with chronic stroke, or healthy, right-handed, English-speaking adults ages 18-35 and 50-80

Design:
Participants will be screened with:
  • medical history

  • neurological history

  • medicine review

  • medical exam

  • neurological exam.

Participants will have a magnetic resonance imaging (MRI) scan of the brain. For this, they will lie down in a scanner. The scanner makes loud noises, so they will wear earplugs. They will fill out an MRI screening form before each MRI.

Participants will also have magnetoencephalography (MEG). MEG maps brain activity. It does this by recording the magnetic fields produced by naturally occurring electrical currents in the brain. For MEG, participants will lie down in the MEG room. Their eye movements may be recorded by a video camera.

Participants will have behavior testing. They will practice typing random keys. Then they will repeatedly type a custom sequence that they see on a computer screen. Then they will take a 2-hour nap. Then they will type the same sequence again.

Participants will have no more than 4 visits at the NIH over 3 months. Visits will last 2-4 hours each.

Condition or DiseaseIntervention/TreatmentPhase

    Detailed Description

    Study Description: We will investigate sleep neural replay to motor skill consolidation in three groups: (a) young healthy subjects, (b) older healthy subjects and (c) patients with chronic stroke.

    Objective: The primary aim is to determine the relative contribution of neural replay during wakeful rest and sleep to consolidation of a newly learned skill in young and older healthy volunteers, and in chronic stroke patients with magnetoencephalography (MEG). The secondary aim is to evaluate differences in replay rates between these subject cohorts. We will also explore differences in replay rates, spatiotemporal dynamics of neural replay and sleep spindles to generate additional hypotheses and preliminary data for future studies.

    Endpoints: The primary endpoint measure is motor skill consolidation (i.e., offline change in correct sequence typing speed following a nap). The secondary endpoint measure is neural replay rate. Exploratory endpoints measures are spatial (i.e. - parcellated source space) and time-frequency maps of neural replay during wakeful rest and sleep, and changes in button-press finger movement kinematics during learning.

    Study Population:

    Arm 1: 46 healthy young (18-35) volunteers.

    Arm 2: 46 healthy older (50-80) volunteers.

    Arm 3: 46 chronic (>6 months post-stroke) stroke patients.

    Phase: N/A

    Descriotion of Site/Facilities: This protocol utilizes the NIH Clinical Center Outpatient Clinic, and NMRF and MEG core facilities.

    Intervention: N/A

    Study Duration: 48 months

    Participant Duration: Up to 4 visits lasting approximately 2-4 hours each.

    Study Design

    Study Type:
    Observational
    Anticipated Enrollment :
    138 participants
    Observational Model:
    Cohort
    Time Perspective:
    Prospective
    Official Title:
    Mechanisms Underlying the Beneficial Effects of Naps on Motor Learning
    Actual Study Start Date :
    Mar 4, 2021
    Anticipated Primary Completion Date :
    Mar 1, 2024
    Anticipated Study Completion Date :
    Dec 31, 2024

    Arms and Interventions

    ArmIntervention/Treatment
    Arm 1

    46 healthy young (18-35) volunteers

    Arm 2

    46 healthy older (50-80) volunteers

    Arm 3

    46 chronic (>6 months post-stroke) stroke patients

    Outcome Measures

    Primary Outcome Measures

    1. The primary endpoint measure is the degree to which motor skillconsolidation (i.e., offline change in correct sequence typing speed) is predicted by replay rates during wakeful rest and sleep, and spindlerates during sleep (i.e.-multiple r... [4 years]

      The primary endpoint measure is the degree to which motor skillconsolidation (i.e., offline change in correct sequence typing speed) is predicted by replay rates during wakeful rest and sleep, and spindlerates during sleep (i.e.-multiple regression model with 3 predictors).

    Secondary Outcome Measures

    1. Exploratory endpoints measures are spatial (i.e.-parcellated source space) and time-frequency maps of neural replay during wakefulrest and sleep. [4 years]

      Exploratory endpoints measures are spatial (i.e.-parcellated source space) and time-frequency maps of neural replay during wakefulrest and sleep.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years to 80 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    Yes
    • HEALTHY VOLUNTEERS:
    INCLUSION CRITERIA:
    • Age 18-35 (Arm 1) or 50-80 (Arm 2)

    • English speaking

    • Clear right-hand dominance (>74 on Edinburgh Handedness Inventory)

    • Normal neurological examination as determined by the screening clinician

    EXCLUSION CRITERIA:
    • HCPS-section affiliated NIH staff

    • Current pregnancy

    • Contraindications for MRI or MEG.

    • Use of sleep medications within 24 hours of Experimental Session participation

    • Severe or progressive neurological, psychological or medical condition as determined by the screening clinician.

    STROKE PATIENTS:
    INCLUSION CRITERIA:
    • Age 18 or older

    • Willing and able to provide consent

    • Experienced a stroke 6 months ago or more that affected at least one of the upper extremities at time of stroke diagnosis

    • Ability to perform the study task as assessed during physical examination

    • English-speaking

    EXCLUSION CRITERIA:
    • HCPS-affiliated NIH staff.

    • Current pregnancy

    • History of large stroke in brainstem or cerebellum

    • Severe or progressive neurological disorder other than stroke (e.g., Parkinson s disease or multiple sclerosis)

    • Uncontrolled heart, lung, kidney, gastrointestinal, metabolic, psychiatric, sleep, or endocrine disorders

    • Contraindications for MRI or MEG.

    Contacts and Locations

    Locations

    SiteCityStateCountryPostal Code
    1National Institutes of Health Clinical CenterBethesdaMarylandUnited States20892

    Sponsors and Collaborators

    • National Institute of Neurological Disorders and Stroke (NINDS)

    Investigators

    • Principal Investigator: Leonardo G Cohen, M.D., National Institute of Neurological Disorders and Stroke (NINDS)

    Study Documents (Full-Text)

    None provided.

    More Information

    Additional Information:

    Publications

    None provided.
    Responsible Party:
    National Institute of Neurological Disorders and Stroke (NINDS)
    ClinicalTrials.gov Identifier:
    NCT04312126
    Other Study ID Numbers:
    • 200060
    • 20-N-0060
    First Posted:
    Mar 18, 2020
    Last Update Posted:
    Apr 8, 2022
    Last Verified:
    Dec 21, 2021
    Keywords provided by National Institute of Neurological Disorders and Stroke (NINDS)

    Study Results

    No Results Posted as of Apr 8, 2022