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Studies of Blood Flow to the Brain During Thought

National Institute of Mental Health (NIMH) · NCT00001360

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Opens the official ClinicalTrials.gov record, with the study team’s contacts. Bored Studies doesn’t enroll anyone.

Key facts

Compensation
Not posted. Ask the study team before screening.
Who can join
Ages 18–65 · All sexes
Healthy volunteers
Accepted
Study type
Observational
Target enrollment
4100
US sites recruiting
1
Study start
September 17, 1993
Record last updated
October 16, 2026

Status re-checked against ClinicalTrials.gov within the last 12 hours.

What the study is about

The purpose of this study is to use brain imaging technology to measure changes in blood flow to areas in the brain as individuals perform intellectual tasks.

This study will use functional magnetic resonance imaging (fMRI) to examine blood flow to areas of the brain as participants engage in tasks associated with visual perception, visual recognition, and memory....

Conditions: Healthy Volunteer

Eligibility criteria

Copied from the official record. The study team makes the final decision at screening.

Show full criteria
  • INCLUSION CRITERIA:
  • Healthy adults, with at least a high school education, aged 18 to 65 years, will be recruited to participate in the study.
  • Able to read and write in English to guarantee understanding of all written and spoken instructions, which are in English.

EXCLUSION CRITERIA

  • Subjects will be excluded if they:
  • have evidence of, or a history of:
  • major medical, neurological or psychiatric illness
  • serious head injury
  • learning disability-drug or alcohol abuse or dependence in the past 3 months, except nicotine

-are taking prescription drugs or supplements that may affect brain function-

-have serious vision or hearing problems

In addition to the above, additional exclusion criteria apply for all MRI studies:

  • Female subjects who are pregnant or have a positive pregnancy test 24 hours prior to an experiment will be excluded from neuroimaging studies.
  • All subjects will be questioned prior to MRI scanning for possible occupational exposure to metal slivers or shavings, which may have become accidentally lodged in the tissues of the head or neck. Subjects with surgical clips or shrapnel in or near the brain or blood vessels, subjects with cochlear implants, subjects with any metallic body in the eye or CNS, and subjects with any form of implant wire or metal device which may concentrate radiofrequency fields will be excluded from MRI scanning experiments because of possible risks during MRI scanning. Those whose history is suggestive of such a problem will also be excluded from the MRI portion of the experiments. They may still participate in the behavioral and MEG experiments.
  • Subjects unable to lie flat on their back for up to 3 hours may not be eligible to participate in MRI scans.

Recruiting US locations

  • National Institutes of Health Clinical Center

    Bethesda, MD 20892

    Site contact: NIH Clinical Center Office of Patient Recruitment (OPR) · 800-411-1222 · ccopr@nih.gov

Study contacts (from the official record)

  • NIMH LBC Volunteer · (301) 827-5157 · nimhlbcvolunteer@mail.nih.gov
  • Christopher I Baker, Ph.D. · (301) 435-6058 · bakerchris@mail.nih.gov
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Studies of Blood Flow to the Brain During Thought (NCT00001360) | Bored Studies