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Traumatic Brain InjuryNCT05009511

MRI Markers of Feedback Timing During Learning in Individuals with TBI with and Without Clinical Depression

A study testing Learning through feedback in people with Traumatic Brain Injury and Major Depressive Disorder, run by Kessler Foundation at 1 site in United States.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The goal of this proposal is to examine the influence of feedback timing on learning and brain function in individuals with moderate-to-severe traumatic brain injury (TBI), with and without depression. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
What is being tested?
Learning through feedback
Could I receive a placebo?
No, everyone receives an active treatment
How many people
180 participants
Where
1 siteUnited States
Study dates
1 Sep 2021to 31 Jan 2026
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • I am between the ages of 18 and 65.
  • I have been diagnosed with a TBI.
  • I am an individual without TBI.
  • I am right-handed.
  • I have normal vision or corrected to normal vision.
  • I can read and speak English fluently.
  • I do or do not have a current diagnosis of Depression.
  • I am not currently pregnant.

Who cannot join

  • I have had a neurological disease, other than TBI.
  • I have a significant history of alcohol or drug abuse as determined by study staff.
  • I have metal in my body (shrapnel, piercing that cannot be taken off, retainer on the upper jaw).
  • I have something in my body that restricts me from having an MRI such as: an aneurysm clip; implanted neural stimulator; implanted cardiac pacemaker or auto-defibrillator; cochlear implant (internal hearing aids); ocular foreign body (e.g. metal shavings in my eye), insulin pump or any pre- existing eye conditions (such as blurry vision, seeing double, and abnormal eye movements).
  • I experience discomfort in closed spaces (claustrophobia).
  • I have been diagnosed with a neurologic illness such as epilepsy, brain tumors, etc. (e.g. schizophrenia and bipolar disorder).
  • I have had corticosteroid treatment less than a month ago as determined by study staff review of my medications.
  • I have been informed by my doctor that is it unsafe for me to receive regular MRI as part of my medical care.

Trial locations and contacts

1 site in 1 country.

United States1 site, 1 recruiting
  • Kessler Foundation

    West Orange, New Jersey, 07052

    Kai Sucich, MA, 973-323-3693, ksucich@kesslerfoundation.org

    Belinda L Washington, BA, 973-324-8446, bwashington@kesslerfoundation.org

    Recruiting

Other trials in United States

About this study

The goal of this proposal is to examine the influence of feedback timing on learning and brain function in individuals with moderate-to-severe traumatic brain injury (TBI), with and without depression.

Read the detailed description

The overall objective of the proposed project is to investigate brain mechanisms during learning in individuals with traumatic brain injury (TBI) with and without clinical depression. Such knowledge can help guide rehabilitation strategies and reduce the burden of TBI. Feedback about the accuracy of one's actions can improve learning by informing an individual whether his/her action is correct or not. Individuals with depression have been shown to have learning deficits and altered brain activity during learning compared to healthy individuals when feedback is presented immediately. Impaired learning through immediate feedback has also been observed in Parkinson's disease (PD) patients. However, PD patients are able to learn from feedback when it is presented after a delay, engaging separate neural mechanisms. Individuals with TBI have also been shown to have learning deficits that are likely exacerbated by depressive symptoms. However, there is no evidence directly examining the neural mechanisms of learning in individuals with TBI with and without depression. The proposed research explores this distinction.

The elucidation of the neural mechanisms associated with learning in individuals with TBI with and without clinical depression will inform 1) scientific knowledge about the effect of depression on the injured brain, 2) TBI interventions about the effectiveness of feedback and its timing, and 3) interventions for other clinical populations that require rehabilitation and have high occurrence of depression. These objectives lie at the heart of the mission of the National Institute of Neurological Disorders and Stroke as they will broaden "fundamental knowledge about the brain and nervous system" associated with learning in TBI and the knowledge gained from fulfilling the above objectives will "reduce the burden" of learning deficits after TBI.

To test these hypotheses, participants will be recruited based on structured clinical interview performed by the team member trained in psychiatric interviewing. Qualified participants will perform an experiment during which they will first study word pairs outside of the functional magnetic resonance imaging scanner. Then, in the scanner, participants will see word pairs again in a multiple-choice format and will have to choose a match for each word. After participants make their choice, feedback will be presented either immediately or after a delay of 25 minutes. The experiment will end with the Test phase, which takes place outside of the scanner, where participants will be presented with the words in the multiple-choice format again so the influence of each feedback type on learning can be evaluated.

Investigators hypothesize that depressed individuals with and without TBI will learn better from delayed compared to immediate feedback, because learning through delayed feedback relies on a different neural mechanism, which is not affected by depression and TBI, compared to learning through immediate feedback. Non-depressed individuals without TBI and clinically depressed individuals without TBI will also be recruited to delineate the influences of depression from the impact of TBI on the brain.

Being tested
Learning through feedback
Keywords
fMRI, Traumatic Brain Injury, Major Depressive Disorder, Learning, Memory, Feedback, Rehabilitation
Medical subject headings
Brain Injuries, Traumatic, Depressive Disorder, Major

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Learning through feedbackBehavioural

    The goal of this investigation is to examine the influence of feedback timing on learning and brain function.

Study groups in NCT05009511
Study groupRoleWhat they receive
Traumatic Brain Injury (TBI)ExperimentalIndividuals with moderate-to-severe injury severity, defined as post-traumatic amnesia lasting more than 24hrs, loss of consciousness lasting more than 30 min, Glasgow Coma Scale (GCS) score less than 13.
Receives: Behavioral: Learning through feedback
Traumatic Brain Injury (TBI) with MDDExperimentalIndividuals with moderate-to-severe injury severity, defined as post-traumatic amnesia lasting more than 24hrs, loss of consciousness lasting more than 30 min, Glasgow Coma Scale (GCS) score less than 13. In addition, individuals will have a diagnosis of major depressive disorder (MDD) as per DSM-5.
Receives: Behavioral: Learning through feedback
Major Depressive Disorder (MDD)ExperimentalIndividuals meeting criteria for major depressive disorder (MDD) including qualifiers 'in partial remission' or 'in full remission' if they are actively in treatment for the condition and still carry the depression diagnosis.
Receives: Behavioral: Learning through feedback
Healthy IndividualsExperimentalHealthy individuals without psychiatric and neurological conditions.
Receives: Behavioral: Learning through feedback

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Learning accuracy

    Participants' learning accuracy (in percent) assessed with Eprime software

    Measured: Collected during the single 1 day study

  2. functional MRI

    Participants brain activity

    Measured: Collected during the single 1 day study

Secondary outcomes (9)
  1. Verbal Paired Associates test

    Verbal learning and memory assessment

    Measured: Collected during the single 1 day study

  2. Logical Memory test

    Verbal learning and memory assessment

    Measured: Collected during the single 1 day study

  3. Delis-Kaplan Executive Function System

    Executive functioning assessment

    Measured: Collected during the single 1 day study

  4. Test of Premorbid Functioning

    Pre-morbid cognitive and memory functioning assessment

    Measured: Collected during the single 1 day study

  5. Ruff 2 & 7 Selective Attention Test

    Attention Assessment

    Measured: Collected during the single 1 day study

  6. Wechsler Adult Intelligence Scale, 4th edition

    Working memory/processing assessment

    Measured: Collected during the single 1 day study

  7. Behavioral Inhibition/Behavioral Approach Scale

    Questionnaire

    Measured: Collected during the single 1 day study

  8. GAD

    Questionnaire

    Measured: Collected during the single 1 day study

  9. PCL

    Questionnaire

    Measured: Collected during the single 1 day study

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Aug 2021
  2. Study start1 Sep 2021
  3. Primary completion31 Jan 2026 (estimated)
  4. Study completion31 Jan 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Single group
Masking
Single blind
Who is masked
Investigator
Enrolment
180 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05009511
Sponsor's protocol ID
R-1142-21
Other IDs
R01NS121107
Status last verified
Dec 2023
First submitted
30 Jul 2021
Last updated
9 Oct 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Learning through feedback in people with Traumatic Brain Injury and Major Depressive Disorder, run by Kessler Foundation at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 9 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Julia McMillan, BA (973-323-3684, jmcmillan@kesslerfoundation.org), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Learning accuracy (time frame: Collected during the single 1 day study). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Oct 2024.

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