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CognitionNCT01212029

Testing and Calibration of Non-Invasive Optical Imaging Technology for Functional Brain Imaging

A study testing Behavioral measures, fNIRS Devices & Application and Physiological measures in people with Cognition, run by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Background: Non-invasive functional near infrared (fNIR) imaging techniques use infrared light to detect changes in blood volume and oxygen levels during brain activity. fNIR is being studied as a possible way to examine the brain activity of individuals who are unable to undergo standard brain function imaging… Read more about this study

Who is it for?
Ages 18 to 99 yearsHealthy volunteers can take part
Conditions the study is for
Cognition
What is being tested?
Behavioral measures, fNIRS Devices & Application and Physiological measures
Could I receive a placebo?
No, everyone receives an active treatment
How many people
159 participants
Where
1 siteUnited States
Study dates
8 Sep 2011to 2 Oct 2024
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 99 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Age 18 years or greater.

Who cannot join

  • Healthy volunteers with any skin disease that, in the opinion of the investigator, would interfere with the study measurements.
  • Healthy volunteers with any past or present vascular disease.
  • Known adverse reaction to latex.
  • Any medical condition that, in the opinion of the Principal Investigator would preclude the inclusion of a patient onto this research study.
  • Unable or unwilling to give informed consent.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892

Other trials in United States

About this study

Background:

  • Non-invasive functional near infrared (fNIR) imaging techniques use infrared light to detect changes in blood volume and oxygen levels during brain activity. fNIR is being studied as a possible way to examine the brain activity of individuals who are unable to undergo standard brain function imaging techniques (such as functional magnetic resonance imaging, or fMRI). For instance, war veterans who have iron shrapnel in the body are not able to have fMRI scans, and very young children or children with autism and related disorders are often not able or willing to cooperate long enough in the MRI environment to allow full imaging studies to take place. Researchers are interested in comparing the results of fNIR and fMRI performed on healthy volunteers to determine if fNIR produces similarly accurate results.
Read more

Objectives:

  • To examine the capabilities of non-invasive functional near infrared imaging techniques on healthy volunteers and compare the results with the existing outcomes of functional magnetic resonance imaging.

Eligibility:

  • Healthy volunteers at least 18 years of age.

Design:

  • Participants will have one study visit. Depending on the complexity of the task, the whole exam will take between 5 minutes and 1 hour to perform.
  • Participants will be asked to sit as still as possible while wearing a headband that includes light sources and detectors (the fNIR device).
  • Participants will be asked to perform a set of tasks (e.g., reading sentences or counting numbers in one s head). Data will be collected during these experiments.
Read the detailed description

Objective: to a) cross-validate our near infrared spectroscopy (NIRS) imaging system with existing functional magnetic resonance imaging (fMRI) and electroencephalogram (EEG) data, and b) to investigate any significant technical issues associated with optode placement and motion artifacts, and to explore techniques that will potentially improve the feasibility and reliability of the system according to the needs of the population for whom existing imaging systems are unsuitable.

Study population: 250 healthy volunteers

Design: The study will look for correlations between NIRS signal changes in healthy subjects when performing functional tasks, and existing fMRI data.

Outcome Measures: graded changes in blood flow and oxygen, measured with NIRS, in response to different functional tasks.

Conditions
Cognition
Being tested
Behavioral measures, fNIRS Devices & Application, Physiological measures
Keywords
fNIRS, Healthy Volunteer, HV

What participants receive

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

  • Behavioral measuresBehavioural

    Behavioral tasks/ questionnaires

  • fNIRS Devices & ApplicationDevice

    Device 1- fNIRSoft and Device 2 - NIRScout

  • Physiological measuresOther

    A set of tasks.

Study groups in NCT01212029
Study groupRoleWhat they receive
1/All SubjectsExperimentalImaging studies related to functional brain activation
Receives: Behavioral: Behavioral measures; Device: fNIRS Devices & Application; Other: Physiological measures

What is being measured

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

  1. Relationship Between Prefrontal Cortex Activation and Respiratory Sinus Arrhythmia

    Prefrontal cortex (PFC) activation is measured in term of change in oxyhemoglobin (O2Hb) using a functional Near-Infrared Spectroscopy (fNIRS) system at a person forehead.

    Respiratory Sinus Arrhythmia (RSA) is the variation of heart beat in response to breathing. It is calculated as changes in the lengths of interbeat interval as a result of breathing using root mean square successive difference (RMSSD).

    The relationship between activation of PFC and RSA is quantified as a linear regression coefficient, which represents the estimated average change in O2Hb concentration associated with a 1 unit increase in RMSSD in heartrate interbeat interval length.

    Measured: During the assessment

  2. Mean Change in Oxyhemoblobin Concentration in Left Dorsolateral Prefrontal Cortex Region After Impersonal Moral Judgement Dilemma

    Moral judgment (MJ) is the process of evaluating what is right or wrong based on social norms. The classic Trolley Dilemma describes an impersonal MJ scenario in which a trolley is hurtling toward five workers on the track. One option presented is to flip a switch to divert the course of the trolley, which would result in the trolley hurtling toward one person on the opposite side of the track, killing this one person. The other is to do nothing and allow the five workers to die.

    Dorsolateral prefrontal cortex (DL-PFC) is responsible for utilitarian (logical) judgments that are thought to engage more cognitive processes and fewer emotional processes.

    Oxyhemoglobin (O2Hb) is measured using a functional Near-Infrared Spectroscopy (fNIRS) at prefrontal cortex.

    Measured: During the assessment

Secondary outcomes (2)
  1. Number of Participants With Significant Issues Associated With NIRS

    Assess any significant issues associated with NIRS optode placement and evaluate the effect of subject motion on data collection, quality, and noise.

    Data from participants with significant issues, which either due to NIRS optode placement or subject motion, data quality, and noise, are removed from further analysis.

    Measured: During the assessment

  2. Number of Participants With High Performance But Low Prefrontal Cortex Activation

    High performance group include people with accuracy score greater than 90% during an n-back task.

    Measured: During the assessment

Timeline

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

  1. First posted30 Sep 2010 (estimated)
  2. Study start8 Sep 2011
  3. Primary completion21 Feb 2024
  4. Study completion2 Oct 2024

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
159 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01212029
Sponsor's protocol ID
100198
Other IDs
10-CH-0198
Status last verified
2 Oct 2024
First submitted
29 Sep 2010
Last updated
17 Apr 2025
FDA-regulated drug
No
FDA-regulated device
Yes

Publications

  • Bozkurt A, Onaral B. Safety assessment of near infrared light emitting diodes for diffuse optical measurements. Biomed Eng Online. 2004 Mar 22;3(1):9. doi: 10.1186/1475-925X-3-9.

    PubMed 15035670
  • Friedland RP, Iadecola C. Roy and Sherrington (1890): a centennial reexamination of "On the regulation of the blood-supply of the brain". Neurology. 1991 Jan;41(1):10-4. doi: 10.1212/wnl.41.1.10. No abstract available.

    PubMed 1985272
  • Villringer A, Chance B. Non-invasive optical spectroscopy and imaging of human brain function. Trends Neurosci. 1997 Oct;20(10):435-42. doi: 10.1016/s0166-2236(97)01132-6.

    PubMed 9347608

Questions about this trial

What is this clinical trial studying?

A study testing Behavioral measures, fNIRS Devices & Application and Physiological measures in people with Cognition, run by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) 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 1 inclusion and 5 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: finished, as of the sponsor's last update on 17 Apr 2025. 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?

Yes. Results are posted in the registry (first posted 17 Apr 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Relationship Between Prefrontal Cortex Activation and Respiratory Sinus Arrhythmia (time frame: During the assessment). 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?

On the ClinicalTrials.gov record for NCT01212029, which also lists 3 linked publications.

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 17 Apr 2025.

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