This study is currently recruiting participants.
Number
93-M-0170
Sponsoring Institute
National Institute of Mental Health (NIMH)
Recruitment Detail
Type: Participants currently recruited/enrolled Gender: Male & Female Min Age: 18 Years Max Age: 65 Years
Referral Letter Required
Yes
Population Exclusion(s)
Children;Adults who are or may become unable to consent
Keywords
Cognition; Vision; Cortex; Visual Processing; Magnetic Resonance Imaging; Natural History
Recruitment Keyword(s)
None
Condition(s)
Healthy Volunteer
Investigational Drug(s)
Investigational Device(s)
Intervention(s)
Drug: 0-15 Water
Supporting Site
National Institute of Mental Health
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.
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INCLUSION CRITERIA: Healthy adults, with at least a high school education, aged 18 to 65 years, will be recruited to participate in the study. EXCLUSION CRITERIA: Subjects will be excluded if they: -are an NIMH employee or a relative -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 2 hours may not be eligible to participate in MRI scans.
Healthy adults, with at least a high school education, aged 18 to 65 years, will be recruited to participate in the study.
EXCLUSION CRITERIA:
Subjects will be excluded if they:
-are an NIMH employee or a relative
-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 2 hours may not be eligible to participate in MRI scans.
Principal Investigator
Referral Contact
For more information: